Cerebral Angiography
Magnetic Resonance Angiography
Angiography, Digital Subtraction
A method of delineating blood vessels by subtracting a tissue background image from an image of tissue plus intravascular contrast material that attenuates the X-ray photons. The background image is determined from a digitized image taken a few moments before injection of the contrast material. The resulting angiogram is a high-contrast image of the vessel. This subtraction technique allows extraction of a high-intensity signal from the superimposed background information. The image is thus the result of the differential absorption of X-rays by different tissues.
Coronary Angiography
Intracranial Aneurysm
Abnormal outpouching in the wall of intracranial blood vessels. Most common are the saccular (berry) aneurysms located at branch points in CIRCLE OF WILLIS at the base of the brain. Vessel rupture results in SUBARACHNOID HEMORRHAGE or INTRACRANIAL HEMORRHAGES. Giant aneurysms (>2.5 cm in diameter) may compress adjacent structures, including the OCULOMOTOR NERVE. (From Adams et al., Principles of Neurology, 6th ed, p841)
Cerebral Infarction
The formation of an area of NECROSIS in the CEREBRUM caused by an insufficiency of arterial or venous blood flow. Infarcts of the cerebrum are generally classified by hemisphere (i.e., left vs. right), lobe (e.g., frontal lobe infarction), arterial distribution (e.g., INFARCTION, ANTERIOR CEREBRAL ARTERY), and etiology (e.g., embolic infarction).
Subarachnoid Hemorrhage
Bleeding into the intracranial or spinal SUBARACHNOID SPACE, most resulting from INTRACRANIAL ANEURYSM rupture. It can occur after traumatic injuries (SUBARACHNOID HEMORRHAGE, TRAUMATIC). Clinical features include HEADACHE; NAUSEA; VOMITING, nuchal rigidity, variable neurological deficits and reduced mental status.
Intracranial Arteriovenous Malformations
Congenital vascular anomalies in the brain characterized by direct communication between an artery and a vein without passing through the CAPILLARIES. The locations and size of the shunts determine the symptoms including HEADACHES; SEIZURES; STROKE; INTRACRANIAL HEMORRHAGES; mass effect; and vascular steal effect.
Tomography, X-Ray Computed
Cranial Sinuses
Large endothelium-lined venous channels situated between the two layers of DURA MATER, the endosteal and the meningeal layers. They are devoid of valves and are parts of the venous system of dura mater. Major cranial sinuses include a postero-superior group (such as superior sagittal, inferior sagittal, straight, transverse, and occipital) and an antero-inferior group (such as cavernous, petrosal, and basilar plexus).
Vertebral Artery
Moyamoya Disease
A noninflammatory, progressive occlusion of the intracranial CAROTID ARTERIES and the formation of netlike collateral arteries arising from the CIRCLE OF WILLIS. Cerebral angiogram shows the puff-of-smoke (moyamoya) collaterals at the base of the brain. It is characterized by endothelial HYPERPLASIA and FIBROSIS with thickening of arterial walls. This disease primarily affects children but can also occur in adults.
Carotid Artery, Internal
Cerebral Hemorrhage
Posterior Cerebral Artery
Ischemic Attack, Transient
Brief reversible episodes of focal, nonconvulsive ischemic dysfunction of the brain having a duration of less than 24 hours, and usually less than one hour, caused by transient thrombotic or embolic blood vessel occlusion or stenosis. Events may be classified by arterial distribution, temporal pattern, or etiology (e.g., embolic vs. thrombotic). (From Adams et al., Principles of Neurology, 6th ed, pp814-6)
Circle of Willis
A polygonal anastomosis at the base of the brain formed by the internal carotid (CAROTID ARTERY, INTERNAL), proximal parts of the anterior, middle, and posterior cerebral arteries (ANTERIOR CEREBRAL ARTERY; MIDDLE CEREBRAL ARTERY; POSTERIOR CEREBRAL ARTERY), the anterior communicating artery and the posterior communicating arteries.
Central Nervous System Vascular Malformations
Cerebrovascular Disorders
Middle Cerebral Artery
Aneurysm, Ruptured
Brain Ischemia
Fluorescein Angiography
Intracranial Embolism and Thrombosis
Cerebral Revascularization
Microsurgical revascularization to improve intracranial circulation. It usually involves joining the extracranial circulation to the intracranial circulation but may include extracranial revascularization (e.g., subclavian-vertebral artery bypass, subclavian-external carotid artery bypass). It is performed by joining two arteries (direct anastomosis or use of graft) or by free autologous transplantation of highly vascularized tissue to the surface of the brain.
Magnetic Resonance Imaging
Vasospasm, Intracranial
Constriction of arteries in the SKULL due to sudden, sharp, and often persistent smooth muscle contraction in blood vessels. Intracranial vasospasm results in reduced vessel lumen caliber, restricted blood flow to the brain, and BRAIN ISCHEMIA that may lead to hypoxic-ischemic brain injury (HYPOXIA-ISCHEMIA, BRAIN).
Basilar Artery
Embolization, Therapeutic
A method of hemostasis utilizing various agents such as Gelfoam, silastic, metal, glass, or plastic pellets, autologous clot, fat, and muscle as emboli. It has been used in the treatment of spinal cord and INTRACRANIAL ARTERIOVENOUS MALFORMATIONS, renal arteriovenous fistulas, gastrointestinal bleeding, epistaxis, hypersplenism, certain highly vascular tumors, traumatic rupture of blood vessels, and control of operative hemorrhage.
Arterial Occlusive Diseases
Cerebral Arterial Diseases
Anterior Cerebral Artery
Cerebral Palsy
A heterogeneous group of nonprogressive motor disorders caused by chronic brain injuries that originate in the prenatal period, perinatal period, or first few years of life. The four major subtypes are spastic, athetoid, ataxic, and mixed cerebral palsy, with spastic forms being the most common. The motor disorder may range from difficulties with fine motor control to severe spasticity (see MUSCLE SPASTICITY) in all limbs. Spastic diplegia (Little disease) is the most common subtype, and is characterized by spasticity that is more prominent in the legs than in the arms. Pathologically, this condition may be associated with LEUKOMALACIA, PERIVENTRICULAR. (From Dev Med Child Neurol 1998 Aug;40(8):520-7)
Vasculitis, Central Nervous System
Inflammation of blood vessels within the central nervous system. Primary vasculitis is usually caused by autoimmune or idiopathic factors, while secondary vasculitis is caused by existing disease process. Clinical manifestations are highly variable but include HEADACHE; SEIZURES; behavioral alterations; INTRACRANIAL HEMORRHAGES; TRANSIENT ISCHEMIC ATTACK; and BRAIN INFARCTION. (From Adams et al., Principles of Neurology, 6th ed, pp856-61)
Carotid Artery Diseases
Brain
The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.
Carotid Stenosis
Narrowing or stricture of any part of the CAROTID ARTERIES, most often due to atherosclerotic plaque formation. Ulcerations may form in atherosclerotic plaques and induce THROMBUS formation. Platelet or cholesterol emboli may arise from stenotic carotid lesions and induce a TRANSIENT ISCHEMIC ATTACK; CEREBROVASCULAR ACCIDENT; or temporary blindness (AMAUROSIS FUGAX). (From Adams et al., Principles of Neurology, 6th ed, pp 822-3)
Vertebrobasilar Insufficiency
Localized or diffuse reduction in blood flow through the vertebrobasilar arterial system, which supplies the BRAIN STEM; CEREBELLUM; OCCIPITAL LOBE; medial TEMPORAL LOBE; and THALAMUS. Characteristic clinical features include SYNCOPE; lightheadedness; visual disturbances; and VERTIGO. BRAIN STEM INFARCTIONS or other BRAIN INFARCTION may be associated.
Sinus Thrombosis, Intracranial
Formation or presence of a blood clot (THROMBUS) in the CRANIAL SINUSES, large endothelium-lined venous channels situated within the SKULL. Intracranial sinuses, also called cranial venous sinuses, include the superior sagittal, cavernous, lateral, petrous sinuses, and many others. Cranial sinus thrombosis can lead to severe HEADACHE; SEIZURE; and other neurological defects.
Intracranial Arteriosclerosis
Vascular diseases characterized by thickening and hardening of the walls of ARTERIES inside the SKULL. There are three subtypes: (1) atherosclerosis with fatty deposits in the ARTERIAL INTIMA; (2) Monckeberg's sclerosis with calcium deposits in the media and (3) arteriolosclerosis involving the small caliber arteries. Clinical signs include HEADACHE; CONFUSION; transient blindness (AMAUROSIS FUGAX); speech impairment; and HEMIPARESIS.
Blindness, Cortical
Arteriovenous Fistula
An abnormal direct communication between an artery and a vein without passing through the CAPILLARIES. An A-V fistula usually leads to the formation of a dilated sac-like connection, arteriovenous aneurysm. The locations and size of the shunts determine the degree of effects on the cardiovascular functions such as BLOOD PRESSURE and HEART RATE.
Epilepsy, Tonic-Clonic
A generalized seizure disorder characterized by recurrent major motor seizures. The initial brief tonic phase is marked by trunk flexion followed by diffuse extension of the trunk and extremities. The clonic phase features rhythmic flexor contractions of the trunk and limbs, pupillary dilation, elevations of blood pressure and pulse, urinary incontinence, and tongue biting. This is followed by a profound state of depressed consciousness (post-ictal state) which gradually improves over minutes to hours. The disorder may be cryptogenic, familial, or symptomatic (caused by an identified disease process). (From Adams et al., Principles of Neurology, 6th ed, p329)
Endarterectomy
Collateral Circulation
Arteriovenous Malformations
Abnormal formation of blood vessels that shunt arterial blood directly into veins without passing through the CAPILLARIES. They usually are crooked, dilated, and with thick vessel walls. A common type is the congenital arteriovenous fistula. The lack of blood flow and oxygen in the capillaries can lead to tissue damage in the affected areas.
Blood Flow Velocity
Carotid Arteries
Intracranial Embolism
Neurologic Examination
Hematoma, Subdural
Accumulation of blood in the SUBDURAL SPACE between the DURA MATER and the arachnoidal layer of the MENINGES. This condition primarily occurs over the surface of a CEREBRAL HEMISPHERE, but may develop in the spinal canal (HEMATOMA, SUBDURAL, SPINAL). Subdural hematoma can be classified as the acute or the chronic form, with immediate or delayed symptom onset, respectively. Symptoms may include loss of consciousness, severe HEADACHE, and deteriorating mental status.
Cranial Fossa, Anterior
Infarction, Middle Cerebral Artery
NECROSIS occurring in the MIDDLE CEREBRAL ARTERY distribution system which brings blood to the entire lateral aspects of each CEREBRAL HEMISPHERE. Clinical signs include impaired cognition; APHASIA; AGRAPHIA; weak and numbness in the face and arms, contralaterally or bilaterally depending on the infarction.
Constriction, Pathologic
Sensitivity and Specificity
Carotid-Cavernous Sinus Fistula
An acquired or spontaneous abnormality in which there is communication between CAVERNOUS SINUS, a venous structure, and the CAROTID ARTERIES. It is often associated with HEAD TRAUMA, specifically basilar skull fractures (SKULL FRACTURE, BASILAR). Clinical signs often include VISION DISORDERS and INTRACRANIAL HYPERTENSION.
Prospective Studies
Cavernous Sinus
Vertebral Artery Dissection
Splitting of the vessel wall in the VERTEBRAL ARTERY. Interstitial hemorrhage into the media of the vessel wall can lead to occlusion of the vertebral artery, aneurysm formation, or THROMBOEMBOLISM. Vertebral artery dissection is often associated with TRAUMA and injuries to the head-neck region but can occur spontaneously.
Treatment Outcome
Malaria, Cerebral
A condition characterized by somnolence or coma in the presence of an acute infection with PLASMODIUM FALCIPARUM (and rarely other Plasmodium species). Initial clinical manifestations include HEADACHES; SEIZURES; and alterations of mentation followed by a rapid progression to COMA. Pathologic features include cerebral capillaries filled with parasitized erythrocytes and multiple small foci of cortical and subcortical necrosis. (From Adams et al., Principles of Neurology, 6th ed, p136)
Surgical Instruments
Temporal Arteries
Hematoma, Subdural, Intracranial
Coma
Lateral Medullary Syndrome
INFARCTION of the dorsolateral aspect of MEDULLA OBLONGATA in the BRAIN STEM. It is caused by occlusion of the VERTEBRAL ARTERY and/or the posterior inferior cerebellar artery. Clinical manifestations vary with the size of infarction, but may include loss of pain and temperature sensation in the ipsilateral face and contralateral body below the chin; ipsilateral HORNER SYNDROME; ipsilateral ATAXIA; DYSARTHRIA; VERTIGO; nausea, hiccup; dysphagia; and VOCAL CORD PARALYSIS. (From Adams et al., Principles of Neurology, 6th ed, p801)
Headache
Follow-Up Studies
Retrospective Studies
Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.
Radionuclide Angiography
Intracranial Hemorrhages
Aneurysm, Infected
Hematoma
Remission, Spontaneous
Catheterization
Rupture, Spontaneous
Ultrasonography, Doppler, Transcranial
A non-invasive technique using ultrasound for the measurement of cerebrovascular hemodynamics, particularly cerebral blood flow velocity and cerebral collateral flow. With a high-intensity, low-frequency pulse probe, the intracranial arteries may be studied transtemporally, transorbitally, or from below the foramen magnum.
Carotid Artery Thrombosis
Dura Mater
Radial Artery
Imaging, Three-Dimensional
The process of generating three-dimensional images by electronic, photographic, or other methods. For example, three-dimensional images can be generated by assembling multiple tomographic images with the aid of a computer, while photographic 3-D images (HOLOGRAPHY) can be made by exposing film to the interference pattern created when two laser light sources shine on an object.
Ultrasonography
Stroke
A group of pathological conditions characterized by sudden, non-convulsive loss of neurological function due to BRAIN ISCHEMIA or INTRACRANIAL HEMORRHAGES. Stroke is classified by the type of tissue NECROSIS, such as the anatomic location, vasculature involved, etiology, age of the affected individual, and hemorrhagic vs. non-hemorrhagic nature. (From Adams et al., Principles of Neurology, 6th ed, pp777-810)
Coronary Artery Disease
Pneumonia, Aspiration
Endarterectomy, Carotid
Aneurysm, Dissecting
Aneurysm caused by a tear in the TUNICA INTIMA of a blood vessel leading to interstitial HEMORRHAGE, and splitting (dissecting) of the vessel wall, often involving the AORTA. Dissection between the intima and media causes luminal occlusion. Dissection at the media, or between the media and the outer adventitia causes aneurismal dilation.
Tomography, Spiral Computed
Computed tomography where there is continuous X-ray exposure to the patient while being transported in a spiral or helical pattern through the beam of irradiation. This provides improved three-dimensional contrast and spatial resolution compared to conventional computed tomography, where data is obtained and computed from individual sequential exposures.
Risk Factors
Predictive Value of Tests
In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test.
Image Processing, Computer-Assisted
Iopamidol
Reproducibility of Results
The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.
Multidetector Computed Tomography
Stents
Postoperative Complications
Iohexol
Radiographic Image Interpretation, Computer-Assisted
Coronary Disease
Tomography, Emission-Computed, Single-Photon
A method of computed tomography that uses radionuclides which emit a single photon of a given energy. The camera is rotated 180 or 360 degrees around the patient to capture images at multiple positions along the arc. The computer is then used to reconstruct the transaxial, sagittal, and coronal images from the 3-dimensional distribution of radionuclides in the organ. The advantages of SPECT are that it can be used to observe biochemical and physiological processes as well as size and volume of the organ. The disadvantage is that, unlike positron-emission tomography where the positron-electron annihilation results in the emission of 2 photons at 180 degrees from each other, SPECT requires physical collimation to line up the photons, which results in the loss of many available photons and hence degrades the image.
Brain Neoplasms
Neoplasms of the intracranial components of the central nervous system, including the cerebral hemispheres, basal ganglia, hypothalamus, thalamus, brain stem, and cerebellum. Brain neoplasms are subdivided into primary (originating from brain tissue) and secondary (i.e., metastatic) forms. Primary neoplasms are subdivided into benign and malignant forms. In general, brain tumors may also be classified by age of onset, histologic type, or presenting location in the brain.
Indocyanine Green
Observer Variation
The failure by the observer to measure or identify a phenomenon accurately, which results in an error. Sources for this may be due to the observer's missing an abnormality, or to faulty technique resulting in incorrect test measurement, or to misinterpretation of the data. Two varieties are inter-observer variation (the amount observers vary from one another when reporting on the same material) and intra-observer variation (the amount one observer varies between observations when reporting more than once on the same material).
Brain Edema
Increased intracellular or extracellular fluid in brain tissue. Cytotoxic brain edema (swelling due to increased intracellular fluid) is indicative of a disturbance in cell metabolism, and is commonly associated with hypoxic or ischemic injuries (see HYPOXIA, BRAIN). An increase in extracellular fluid may be caused by increased brain capillary permeability (vasogenic edema), an osmotic gradient, local blockages in interstitial fluid pathways, or by obstruction of CSF flow (e.g., obstructive HYDROCEPHALUS). (From Childs Nerv Syst 1992 Sep; 8(6):301-6)
Cerebral Amyloid Angiopathy
A heterogeneous group of sporadic or familial disorders characterized by AMYLOID deposits in the walls of small and medium sized blood vessels of CEREBRAL CORTEX and MENINGES. Clinical features include multiple, small lobar CEREBRAL HEMORRHAGE; cerebral ischemia (BRAIN ISCHEMIA); and CEREBRAL INFARCTION. Cerebral amyloid angiopathy is unrelated to generalized AMYLOIDOSIS. Amyloidogenic peptides in this condition are nearly always the same ones found in ALZHEIMER DISEASE. (from Kumar: Robbins and Cotran: Pathologic Basis of Disease, 7th ed., 2005)
Cerebral Ventricles
Severity of Illness Index
Radiographic Image Enhancement
Brain Diseases
Ultrasonography, Interventional
Feasibility Studies
Intracranial Thrombosis
Image Enhancement
Angioplasty, Balloon, Coronary
Myocardial Infarction
Intracranial Pressure
Electrocardiography
Recording of the moment-to-moment electromotive forces of the HEART as projected onto various sites on the body's surface, delineated as a scalar function of time. The recording is monitored by a tracing on slow moving chart paper or by observing it on a cardioscope, which is a CATHODE RAY TUBE DISPLAY.
Fundus Oculi
Gadolinium DTPA
Disease Models, Animal
Incidence
Ultrasonography, Doppler, Duplex
Radiation Dosage
The amount of radiation energy that is deposited in a unit mass of material, such as tissues of plants or animal. In RADIOTHERAPY, radiation dosage is expressed in gray units (Gy). In RADIOLOGIC HEALTH, the dosage is expressed by the product of absorbed dose (Gy) and quality factor (a function of linear energy transfer), and is called radiation dose equivalent in sievert units (Sv).
Aortography
Radiography, Interventional
Diagnostic and therapeutic procedures that are invasive or surgical in nature, and require the expertise of a specially trained radiologist. In general, they are more invasive than diagnostic imaging but less invasive than major surgery. They often involve catheterization, fluoroscopy, or computed tomography. Some examples include percutaneous transhepatic cholangiography, percutaneous transthoracic biopsy, balloon angioplasty, and arterial embolization.
Cardiac Catheterization
Angina Pectoris
Xenon Radioisotopes
Cerebrum
Derived from TELENCEPHALON, cerebrum is composed of a right and a left hemisphere. Each contains an outer cerebral cortex and a subcortical basal ganglia. The cerebrum includes all parts within the skull except the MEDULLA OBLONGATA, the PONS, and the CEREBELLUM. Cerebral functions include sensorimotor, emotional, and intellectual activities.
Tomography, Emission-Computed
Brain Infarction
Tissue NECROSIS in any area of the brain, including the CEREBRAL HEMISPHERES, the CEREBELLUM, and the BRAIN STEM. Brain infarction is the result of a cascade of events initiated by inadequate blood flow through the brain that is followed by HYPOXIA and HYPOGLYCEMIA in brain tissue. Damage may be temporary, permanent, selective or pan-necrosis.
Hemodynamics
Extravasation of Diagnostic and Therapeutic Materials
Aneurysm
Ultrasonography, Doppler
Ultrasonography applying the Doppler effect, with frequency-shifted ultrasound reflections produced by moving targets (usually red blood cells) in the bloodstream along the ultrasound axis in direct proportion to the velocity of movement of the targets, to determine both direction and velocity of blood flow. (Stedman, 25th ed)
Artifacts
Any visible result of a procedure which is caused by the procedure itself and not by the entity being analyzed. Common examples include histological structures introduced by tissue processing, radiographic images of structures that are not naturally present in living tissue, and products of chemical reactions that occur during analysis.
Reperfusion
Restoration of blood supply to tissue which is ischemic due to decrease in normal blood supply. The decrease may result from any source including atherosclerotic obstruction, narrowing of the artery, or surgical clamping. It is primarily a procedure for treating infarction or other ischemia, by enabling viable ischemic tissue to recover, thus limiting further necrosis. However, it is thought that reperfusion can itself further damage the ischemic tissue, causing REPERFUSION INJURY.
Pia Mater
Image Interpretation, Computer-Assisted
Myocardial Perfusion Imaging
Ultrasonography, Doppler, Color
Ultrasonography applying the Doppler effect, with the superposition of flow information as colors on a gray scale in a real-time image. This type of ultrasonography is well-suited to identifying the location of high-velocity flow (such as in a stenosis) or of mapping the extent of flow in a certain region.
Hypoxia, Brain
A reduction in brain oxygen supply due to ANOXEMIA (a reduced amount of oxygen being carried in the blood by HEMOGLOBIN), or to a restriction of the blood supply to the brain, or both. Severe hypoxia is referred to as anoxia, and is a relatively common cause of injury to the central nervous system. Prolonged brain anoxia may lead to BRAIN DEATH or a PERSISTENT VEGETATIVE STATE. Histologically, this condition is characterized by neuronal loss which is most prominent in the HIPPOCAMPUS; GLOBUS PALLIDUS; CEREBELLUM; and inferior olives.
Carbon Dioxide
Oxygen
Spectroscopy, Near-Infrared
A noninvasive technique that uses the differential absorption properties of hemoglobin and myoglobin to evaluate tissue oxygenation and indirectly can measure regional hemodynamics and blood flow. Near-infrared light (NIR) can propagate through tissues and at particular wavelengths is differentially absorbed by oxygenated vs. deoxygenated forms of hemoglobin and myoglobin. Illumination of intact tissue with NIR allows qualitative assessment of changes in the tissue concentration of these molecules. The analysis is also used to determine body composition.
Neuroprotective Agents
Drugs intended to prevent damage to the brain or spinal cord from ischemia, stroke, convulsions, or trauma. Some must be administered before the event, but others may be effective for some time after. They act by a variety of mechanisms, but often directly or indirectly minimize the damage produced by endogenous excitatory amino acids.
Fractional Flow Reserve, Myocardial
Myocardial Revascularization
Carotid Artery, External
Rats, Sprague-Dawley
Celiac Artery
Cardiac-Gated Imaging Techniques
Coronary Vessel Anomalies
Coronary Artery Bypass
Angioplasty, Balloon
Gadolinium
Aneurysm, False
Not an aneurysm but a well-defined collection of blood and CONNECTIVE TISSUE outside the wall of a blood vessel or the heart. It is the containment of a ruptured blood vessel or heart, such as sealing a rupture of the left ventricle. False aneurysm is formed by organized THROMBUS and HEMATOMA in surrounding tissue.
Thrombolytic Therapy
Perfusion Imaging
Prognosis
Blood-Brain Barrier
Subtraction Technique
Combination or superimposition of two images for demonstrating differences between them (e.g., radiograph with contrast vs. one without, radionuclide images using different radionuclides, radiograph vs. radionuclide image) and in the preparation of audiovisual materials (e.g., offsetting identical images, coloring of vessels in angiograms).
Preoperative Care
Care given during the period prior to undergoing surgery when psychological and physical preparations are made according to the special needs of the individual patient. This period spans the time between admission to the hospital to the time the surgery begins. (From Dictionary of Health Services Management, 2d ed)
Acetazolamide
One of the CARBONIC ANHYDRASE INHIBITORS that is sometimes effective against absence seizures. It is sometimes useful also as an adjunct in the treatment of tonic-clonic, myoclonic, and atonic seizures, particularly in women whose seizures occur or are exacerbated at specific times in the menstrual cycle. However, its usefulness is transient often because of rapid development of tolerance. Its antiepileptic effect may be due to its inhibitory effect on brain carbonic anhydrase, which leads to an increased transneuronal chloride gradient, increased chloride current, and increased inhibition. (From Smith and Reynard, Textbook of Pharmacology, 1991, p337)
Technetium
The first artificially produced element and a radioactive fission product of URANIUM. Technetium has the atomic symbol Tc, atomic number 43, and atomic weight 98.91. All technetium isotopes are radioactive. Technetium 99m (m=metastable) which is the decay product of Molybdenum 99, has a half-life of about 6 hours and is used diagnostically as a radioactive imaging agent. Technetium 99 which is a decay product of technetium 99m, has a half-life of 210,000 years.
Coronary Aneurysm
Technetium Tc 99m Exametazime
Organotechnetium Compounds
Exercise Test
Phlebography
Intracranial arteriovenous malformations. Observations after experience with computerised tomography. (1/3177)
Thirty-six patients with angiographically confirmed intracranial arteriovenous malformations have had computerised tomographic scans performed as part of their investigation. This study demonstrates the incidence of haematoma formation after haemorrhage, the frequency of calcification not visible on plain radiographs, and describes the possible causes for a complicating hydrocephalus. Further information has been gained from the intravenous injection of sodium iothalamate (Conray 420), with comparison of the scans taken before and after the injection. (+info)Computerised axial tomography in patients with severe migraine: a preliminary report. (2/3177)
Patients suffering from severe migraine, usually for many years, have been examined by the EMI scanner between attacks. Judged by criteria validated originally by comparison with pneumoencephalography, about half of the patients showed evidence of cerebral atrophy. Perhaps of more significance than generalised atrophy was the frequency of areas of focal atrophy and of evidence of infarction. (+info)Two similar cases of encephalopathy, possibly a reversible posterior leukoencephalopathy syndrome: serial findings of magnetic resonance imaging, SPECT and angiography. (3/3177)
Two young women who had encephalopathy that resembled reversible posterior leukoencephalopathy syndrome are presented. The brain magnetic resonance imaging (MRI) of these patients exhibited similar T2-high signal lesions, mostly in the white matter of the posterior hemispheres. Xe-SPECT during the patients' symptomatic period showed hypoperfusion in the corresponding areas, and angiography demonstrated irregular narrowing of the posterior cerebral artery. Clinical manifestations subsided soon after treatment, and the abnormal radiological findings also were almost completely resolved. Thus, we concluded that transient hypoperfusion followed by ischemia and cytotoxic edema might have had a pivotal role in these cases. (+info)Large and giant middle to lower basilar trunk aneurysms treated by surgical and interventional neuroradiological methods. (4/3177)
Treatment of large and giant aneurysms of the basilar artery remains difficult and controversial. Three large or giant aneurysms of the lower basilar artery were treated with a combination of surgical and interventional neuroradiological procedures. All patients underwent the balloon occlusion test with hypotensive challenge (blood pressure reduced to 70% of the control value). The third patient did not tolerate the test. In the first patient, both vertebral arteries were occluded through a craniotomy. In the second patient, both the aneurysm and the basilar artery were occluded by detached balloons. In the third patient, one vertebral artery was occluded by surgical clipping and the other by detached helical coils and fiber coils. In spite of anti-coagulation and anti-platelet therapy, postoperative thrombotic or embolic ischemia occurred in the second and third patients. Fibrinolytic therapy promptly corrected the ischemic symptoms, but the second patient developed hemorrhagic complications at the craniotomy area 2 hours later. At follow-up examination, the first patient had only 8th cranial nerve paresis, the second patient who had a hemorrhagic complication was bed-ridden, and the third patient had no deficit. Interventional occlusion requires a longer segment of the parent artery compared to surgical occlusion of the parent artery and might cause occlusion of the perforating arteries. However, selected use of various coils can occlude only a short segment of the parent artery. Thus, the postoperative management of thromboembolic ischemia after the occlusion of the parent artery is easier using the interventional technique. (+info)Combined carotid endarterectomy and coronary artery bypass graft. (5/3177)
Atherosclerosis is a generalized disease which afflicts a considerable number of patients in both the carotid and coronary arteries. Although the risk of stroke or death use to combined carotid endarterectomy (CEA) and coronary artery bypass graft (CABG) is thought to be higher than that of each individual operation, the combined procedure is generally preferred over staged operations to treat such patients. We performed the combined procedure safely with the aid of intraoperative portable digital subtraction angiography (DSA). This report describes our experience with the operative strategy of simultaneous CEA and CABG. Ninety CEA and 404 CABG were carried out between January 1989 and December 1997. A total of six patients received the combined procedure with the aid of intraoperative DSA; they were studied retrospectively. Postoperative mortality and morbidity after the combined procedure was 0%. In the combined procedure, neurological complications are difficult to detect after CEA because the patient must be maintained under general anesthesia and extracorporeal circulation during the subsequent CABG. However, intraoperative DSA can confirm patency of the internal carotid artery and absence of flap formation after CEA, and the CABG can be performed safely. Intraoperative portable DSA between CEA and CABG is helpful in preventing perioperative stroke in the combined procedure. (+info)Angiographical extravasation of contrast medium in hemorrhagic infarction. Case report. (6/3177)
Leakage of the contrast medium was noted on angiograms of a patient whose autopsied brain disclosed typical pathological findings of hemorrhagic infarction. The case was a 63-year old woman with mitral valve failure, who suddenly had loss of consciousness and right-sided hemiplegia. The left carotid angiography performed six hours after onset demonstrated middle cerebral arterial axis occlusion, and the second angiography performed three days after onset displayed recanalization of the initially occluded artery as well as extravasation of the contrast medium. Fourteen days after onset the patient died and an autopsy was performed. The brain demonstrated perivascular punctate hemorrhages in the area supplied by the middle cerebral artery, and neither hematoma nor microaneurysm was disclosed pathologically. A short discussion is given on the possible relationship between recanalization and hemorrhagic infarction. The clinical assessment of hemorrhagic infarction has not been established successfully. (+info)Carotid endarterectomy and intracranial thrombolysis: simultaneous and staged procedures in ischemic stroke. (7/3177)
PURPOSE: The feasibility and safety of combining carotid surgery and thrombolysis for occlusions of the internal carotid artery (ICA) and the middle cerebral artery (MCA), either as a simultaneous or as a staged procedure in acute ischemic strokes, was studied. METHODS: A nonrandomized clinical pilot study, which included patients who had severe hemispheric carotid-related ischemic strokes and acute occlusions of the MCA, was performed between January 1994 and January 1998. Exclusion criteria were cerebral coma and major infarction established by means of cerebral computed tomography scan. Clinical outcome was assessed with the modified Rankin scale. RESULTS: Carotid reconstruction and thrombolysis was performed in 14 of 845 patients (1.7%). The ICA was occluded in 11 patients; occlusions of the MCA (mainstem/major branches/distal branch) or the anterior cerebral artery (ACA) were found in 14 patients. In three of the 14 patients, thrombolysis was performed first, followed by carotid enarterectomy (CEA) after clinical improvement (6 to 21 days). In 11 of 14 patients, 0.15 to 1 mIU urokinase was administered intraoperatively, ie, emergency CEA for acute ischemic stroke (n = 5) or surgical reexploration after elective CEA complicated by perioperative intracerebral embolism (n = 6). Thirteen of 14 intracranial embolic occlusions and 10 of 11 ICA occlusions were recanalized successfully (confirmed with angiography or transcranial Doppler studies). Four patients recovered completely (Rankin 0), six patients sustained a minor stroke (Rankin 2/3), two patients had a major stroke (Rankin 4/5), and two patients died. In one patient, hemorrhagic transformation of an ischemic infarction was detectable postoperatively. CONCLUSION: Combining carotid surgery with thrombolysis (simultaneous or staged procedure) offers a new therapeutic approach in the emergency management of an acute carotid-related stroke. Its efficacy should be evaluated in interdisciplinary studies. (+info)Surgical treatment of internal carotid artery anterior wall aneurysm with extravasation during angiography--case report. (8/3177)
A 54-year-old female presented subarachnoid hemorrhage from an aneurysm arising from the anterior (dorsal) wall of the internal carotid artery (ICA). During four-vessel angiography, an extravasated saccular pooling of contrast medium emerged in the suprasellar area unrelated to any arterial branch. The saccular pooling was visualized in the arterial phase and cleared in the venophase during every contrast medium injection. We suspected that the extravasated pooling was surrounded by hard clot but communicated with the artery. Direct surgery was performed but major premature bleeding occurred during the microsurgical procedure. After temporary clipping, an opening of the anterior (dorsal) wall of the ICA was found without apparent aneurysm wall. The vessel wall was sutured with nylon thread. The total occlusion time of the ICA was about 50 minutes. Follow-up angiography demonstrated good patency of the ICA. About 2 years after the operation, the patient was able to walk with a stick and to communicate freely through speech, although left hemiparesis and left homonymous hemianopsia persisted. The outcome suggests our treatment strategy was not optimal, but suture of the ICA wall is one of the therapeutic choices when premature rupture occurs in the operation. (+info)
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Internal carotid artery
386-393 [1] Osborn, Anne (1999). Diagnostic Cerebral Angiography (2nd ed.). Philadelphia, PA, USA: Lippincott Williams & ... The internal carotid artery can receive blood flow via an important collateral pathway supplying the brain, the cerebral ... artery the anterior choroidal artery The internal carotid then divides to form the anterior cerebral artery and middle cerebral ... Middle cerebral artery (a terminal branch) The sympathetic trunk forms a plexus of nerves around the artery known as the ...
Meningohypophyseal artery
Diagnostic cerebral angiography. Philadelphia: Lippincott Willims & Wilkins. pp. 84-87. ISBN 0-397-58404-0. v t e. ...
Lobotomy
Cerebral Angiography and Egas Moniz. American Journal of Roentgenology. 1992;359(2):364.[permanent dead link] ... who had previously assisted Moniz with his research on cerebral angiography.[n 13][100] The intention was to remove some of the ... For his 1927 development of cerebral angiography, which allowed routine visualisation of the brain's peripheral blood vessels ... of Neurology in 1935 where he had presented a poster exhibit of the Portuguese neurologist's work on cerebral angiography.[126] ...
Fluoroscopy
Angiography of the leg, heart and cerebral vessels.. *Placement of a PICC (peripherally inserted central catheter) ... Cardiology for diagnostic angiography, percutaneous coronary interventions, (pacemakers, implantable cardioverter ...
Dural arteriovenous fistula
Cerebral angiography is the diagnostic standard. MRIs are typically normal but can identify venous hypertension as a result of ... Cognard, C.; Gobin, Y. P.; Pierot, L.; Bailly, A. L.; Houdart, E.; Casasco, A.; Chiras, J.; Merland, J. J. (1995). "Cerebral ...
1927 in science
António Egas Moniz develops cerebral angiography. February 23 - German theoretical physicist Werner Heisenberg writes a letter ...
João Lobo Antunes - Wikipédia, a enciclopédia livre
Antunes, J.L.: Egas Moniz and cerebral angiography. J. Neurosurg. 40:427-432, 1974 ... Chen, R.Y.Z., Murasko, K.M., Charlin, R.D., Antunes, J.L., Chien, S.: Improvement of cerebral and myocardial blood flows by ... Solomon, R.A., Antunes, J.L., Chen, R.Y.Z., Bland, L. Chien, S.: Decrease in cerebral blood flow in rats after experimental ... Chen, R.Y.Z., Carlin, R.D., Murasko, K.M., Antunes, J.L.: Comparison of responses of regional cerebral blood flow to ...
Carotid-cavernous fistula
This is based on MRI scan, magnetic resonance angiography and CT scan. A cerebral digital subtraction angiography (DSA) ... High resolution digital subtraction angiography may help in classifying CCF into dural and direct type and thus formulate a ...
Interventional neuroradiology
Diagnostic angiography Cerebral angiography was developed by Portuguese neurologist Egas Moniz at the University of Lisbon, in ... Artico, M (2017). "Egas Moniz: 90 Years (1927-2017) from Cerebral Angiography". Front Neuroanat. 11: 81. doi:10.3389/fnana. ... Cerebral angiography via the femoral artery with particular reference to cerebrovascular disease. Acta Neurol Scand 1967; Suppl ... He performed the first brain angiography in Lisbon in 1927 by injecting an iodinated contrast medium into the internal carotid ...
Trigeminal artery
"Normal Variants of the Cerebral Circulation at Multidetector CT Angiography". RadioGraphics (2009) 29: 1036. Waleed Azab, ... In around 0.1 to 0.6% of individuals, as sampled by magnetic resonance angiography, the trigeminal artery fails to involute and ...
Necrotizing vasculitis
Patients have CNS symptoms as well as cerebral vasculitis by angiography and leptomeningeal biopsy. ... Isolated cerebral vasculitis. Affects medium and small arteries over a diffuse CNS area, without symptomatic extracranial ... However, in Takayasu's arteritis, where the aorta may be involved, it is unlikely a biopsy will be successful and angiography ...
Vertebral artery dissection
The gold standard is cerebral angiography (with or without digital subtraction angiography).[3][14][15] This involves puncture ... Computed tomography angiography, magnetic resonance angiography, invasive angiography. Treatment. Anticoagulation, angioplasty ... MR angiography). They use smaller amounts of contrast and are not invasive. CT angiography and MR angiography are more or less ... The thrombolytic drug is administered either intravenously or during cerebral angiography through a catheter directly into the ...
Projectional radiography
Cerebral angiography allows visualization of blood vessels in and around the brain. A contrast agent is injected prior to the ...
Brain death
... and cerebral scintigraphy (technetium Tc 99m exametazime). Cerebral angiography is considered the most sensitive confirmatory ... For example, although one major medical dictionary[7] considers "brain death" to be synonymous with "cerebral death" (death of ... CT angiography is neither required nor sufficient test to make the diagnosis.[22] ... Also, a radionuclide cerebral blood flow scan that shows complete absence of intracranial blood flow must be considered with ...
Lobotomija - Википедија, слободна енциклопедија
Doby, T. (1992). Cerebral Angiography and Egas Moniz, American Journal of Roentgenology. 359 (2):, pp. 364. ...
Subarachnoid hemorrhage
If a cerebral aneurysm is identified on angiography, two measures are available to reduce the risk of further bleeding from the ... Aneurysms of the middle cerebral artery and its related vessels are hard to reach with angiography and tend to be amenable to ... Delayed cerebral ischemia, cerebral vasospasm, seizures[1]. Types. Traumatic, spontaneous (aneurysmal, nonaneurysmal, ... the choice is between cerebral angiography (injecting radiocontrast through a catheter to the brain arteries) and CT ...
Moyamoya disease
Cerebral angiography showed a right moyamoya pattern and an ipsilateral dural AVF fed by branches of the external carotid ... These vessels are the ACA (anterior cerebral artery), MCA (middle cerebral artery), and ICA (internal carotid artery). The ... anterior cerebral artery and middle cerebral artery Stage 4 Minimization of the moyamoya and defects of the posterior cerebral ... Cerebral angiography is the gold standard of diagnosing moyamoya disease and its progression. According to the Suzuki's system ...
Brain implant
That is, an electrode array built onto a self-expanding stent, implanted into the brain via cerebral angiography. This pathway ...
Dense artery sign
Through cerebral angiography, the sign has been demonstrated to correspond to embolic or atherosclerotic occlusion of an artery ... The sign has been observed in the middle cerebral artery (MCA), posterior cerebral artery (PCA), vertebral artery, and basilar ... Launes J, Ketonen L (November 1987). "Dense middle cerebral artery sign: an indicator of poor outcome in middle cerebral artery ... 1993). "Increased density in the middle cerebral artery by nonenhanced computed tomography. Prognostic value in acute cerebral ...
Iopamidol
Angiography throughout the cardiovascular system, including cerebral and peripheral arteriography, coronary arteriography and ...
Vertebrobasilar insufficiency
... radiopaedia.org/articles/ct-angiography-of-the-cerebral-arteries?lang=gb Marks MP, Wojak JC, Al-Ali F, et al. (2006). " ... CT angiography and Magnetic Resonance Angiography (MRA) can be used to detect atherosclerosis and other diseases in the ... https://radiopaedia.org/articles/posterior-cerebral-circulation?lang=gb "Vertebrobasilar Atherothrombotic Disease: Background, ...
The Exorcist (film)
... to scenes in which the protagonist undergoes a realistic cerebral angiography and violently masturbates with a crucifix. There ... is the radiographer talking to Regan through the cerebral angiography. In the film Regan first undergoes an ... Despite its lack of any supernatural content, many audience members found the angiography, where blood spurts from the tube ... The angiography scene, in which a needle is inserted into Regan's neck and spurts blood, a procedure Friedkin suggests was ...
Bonnet-Dechaume-Blanc syndrome
MRI, CT, and cerebral angiography may all be used to investigate the extent and location of any vascular lesions affecting the ... Cerebral malformations can result in severe headaches, cerebral hemorrhages, vomiting, meningism, seizures, acute strokes, and ... Fluorescein angiography is commonly used to diagnose the syndrome. There have been several methods in treating patients with ... Fluorescein angiography is quite useful in diagnosing retinal features of the disease, and the use of ultrasonography and ...
Science and technology in Portugal
In 1949, the Portuguese neurologist António Egas Moniz, an early developer of the cerebral angiography, was awarded the Nobel ... he also was a pioneer in the development of cerebral angiography Pedro Nunes - 16th century mathematician, one of the greatest ...
Saleem Abdulrauf
Cerebral Revascularization: Techniques in Extracranial to Intracranial Bypass Surgery. Copyright 2011 Elsevier, Inc. ISBN 978-1 ... Minimally invasive awake STA to MCA bypass through a large burr hole: The use of CT angiography neuronavigation in surgical ... Abdulrauf has authored the main reference textbook for bypass brain surgery titled Cerebral Revascularization: Techniques in ... He has authored the main reference textbook for brain bypass surgery titled Cerebral Revascularization in which Abdulrauf ...
Radiography
Angiography[edit]. Angiogram showing a transverse projection of the vertebro basilar and posterior cerebral circulation. ... Main article: Angiography. Angiography is the use of fluoroscopy to view the cardiovascular system. An iodine-based contrast is ... Angiography is used to find aneurysms, leaks, blockages (thromboses), new vessel growth, and placement of catheters and stents ... It is also used in CT pulmonary angiography to decrease the required dose of iodinated contrast.[23] ...
Brain tumor
Early imaging methods - invasive and sometimes dangerous - such as pneumoencephalography and cerebral angiography have been ... Brain metastasis in the right cerebral hemisphere from lung cancer, shown on magnetic resonance imaging. ... although glial cells outnumber neurons roughly 4 to 1 in the cerebral cortex. Glia come in several types, which perform a ...
Intermittent claudication
Magnetic resonance angiography and duplex ultrasonography appear to be slightly more cost-effective in diagnosing peripheral ... artery disease among people with intermittent claudication than projectional angiography.[3] Treatment[edit]. Exercise can ...
Angioscopy
Angiography. *Digital subtraction angiography *Cerebral angiography. *Aortography. *Fluorescein angiography. *Radionuclide ...
Strok bahasa Indonesia, ensiklopedia bebas
... cerebral angiography. Sistem TOAST membagi stroke menjadi 5 subtipe yaitu,[11][12] large artery atherosclerosis (LAAS), ... impaired cerebral autoregulation dan perubahan protrombotik dipercaya merupakan penyebab cerebral small vessel disease (SVD). ... Cryptogenic cerebral infarction (CCI)[sunting , sunting sumber]. CCI paling banyak ditemukan dalam penderita patent foramen ... "Cryptogenic cerebral infarction: from classification to concept". SourceCHU de la Cavale Blanche, Service de neurologie; Timsit ...
Neuroimaging
In 1927 Egas Moniz introduced cerebral angiography, whereby both normal and abnormal blood vessels in and around the brain ... Uptake of SPECT agent is nearly 100% complete within 30 to 60 seconds, reflecting cerebral blood flow (CBF) at the time of ... SPECT provides a "snapshot" of cerebral blood flow since scans can be acquired after seizure termination (so long as the ... Dandy also observed that air introduced into the subarachnoid space via lumbar spinal puncture could enter the cerebral ...
Intracranial aneurysm
Cerebral bypass surgery[edit]. Cerebral bypass surgery was developed in the 1960s in Switzerland by Gazi Yasargil, M.D. When a ... Comparison of computed tomography angiography with digital subtraction angiography in the assessment of clipped intracranial ... Some individuals with a ruptured cerebral aneurysm die from the initial bleeding. Other individuals with cerebral aneurysm ... CT Angiography and MR Angiography for Detection-Prospective Blinded Comparison in a Large Patient Cohort". Radiology. 219 (3): ...
Aspirin
... causes an increased risk of cerebral microbleeds having the appearance on MRI scans of 5 to 10 mm or smaller, ... Foundation/American Heart Association Task Force on Practice Guidelines and the Society for Cardiovascular Angiography and ... Gorelick PB (June 2009). "Cerebral microbleeds: evidence of heightened risk associated with aspirin use". Archives of Neurology ... hypointense (dark holes) patches.[107][108] Such cerebral microbleeds are important, since they often occur prior to ischemic ...
Intracerebral hemorrhage
It accounts for 20% of all cases of cerebrovascular disease in the United States, behind cerebral thrombosis (40%) and cerebral ... Both computed tomography angiography (CTA) and magnetic resonance angiography (MRA) have been proved to be effective in ... "Journal of Cerebral Blood Flow & Metabolism. 30 (4): 689-702. doi:10.1038/jcbfm.2009.282. PMC 2949160. PMID 20087366. Archived ... Cerebral bleeding affects about 2.5 per 10,000 people each year.[2] It occurs more often in males and older people.[2] About 44 ...
Beating heart cadaver
Cerebral angiography, electroencephalography, transcranial doppler ultrasonography, and cerebral scintigraphy are some of the ...
Brain death
... and cerebral scintigraphy (technetium Tc 99m exametazime). Cerebral angiography is considered the most sensitive confirmatory ... For example, although one major medical dictionary[6] considers "brain death" to be synonymous with "cerebral death" (death of ... CT angiography is neither required nor sufficient test to make the diagnosis.[21] ... Also, a radionuclide cerebral blood flow scan that shows complete absence of intracranial blood flow must be considered with ...
Electroencephalography
Most of the cerebral signal observed in the scalp EEG falls in the range of 1-20 Hz (activity below or above this range is ... Cerebral angiography. *Pneumoencephalography. *Echoencephalography/Transcranial Doppler. *Brain MRI. *Brain PET. * ... Electrical signals detected along the scalp by an EEG, but are of non-cerebral origin are called artifacts. EEG data is almost ... Additionally, EEG may be used to monitor the depth of anesthesia, as an indirect indicator of cerebral perfusion in carotid ...
Ventricle (heart)
"Characterisation of the normal right ventricular pressure-volume relation by biplane angiography and simultaneous ...
Functional magnetic resonance imaging
... low-dose coronary CT angiography, nuclear imaging, and X-ray angiography), differences in the mechanism by which this damage ... The cerebral blood flow (CBF) corresponds to the consumed glucose differently in different brain regions. Initial results show ... This technique relies on the fact that cerebral blood flow and neuronal activation are coupled. When an area of the brain is in ... Mosso's manuscripts do not provide direct evidence that the balance was really able to measure changes in cerebral blood flow ...
阿司匹林 - 維基百科,自由的百科全書
Cerebral microbleeds: evidence of heightened risk associated with aspirin use. Arch Neurol. 2009, 66 (6): 691-3. PMID 19506128 ... Foundation/American Heart Association Task Force on Practice Guidelines and the Society for Cardiovascular Angiography and ... Stroke; a journal of cerebral circulation. September 2005, 36 (9): 2034-6. PMID 16100022. doi:10.1161/01.STR.0000177887.14339. ... Use of antithrombotic drugs and the presence of cerebral microbleeds: the Rotterdam Scan Study. Arch Neurol. 2009, 66 (6): 714- ...
جراحی مغز و اعصاب - ویکیپدیا، دانشنامهٔ آزاد
Cerebral angiography. *Pneumoencephalography. *Echoencephalography/Transcranial Doppler. *Magnetic resonance imaging of the ... Techniques such as angioplasty, stenting, clot retrieval, embolization, and diagnostic angiography are endovascular procedures. ... or one of the cerebral hemispheres of the brain; those two procedures, when possible, are also very, very rarely used in ...
Pulmonary hypertension
If unmatched perfusion defects are found, further evaluation by CT pulmonary angiography, right heart catheterization, and ...
Legal death
... and demonstration of loss of cerebral blood flow (cerebral angiography, transcranial doppler ultrasonography, or cerebral ... and other confounding factors may also produce cerebral electric silence on EEG.. ...
Axotomy
Cerebral angiography. *Pneumoencephalography. *Echoencephalography/Transcranial Doppler. *Magnetic resonance imaging of the ... Inflammation of the head is often slow to onset after injury, and can lead to a fatal rise in cerebral pressure. A recently ...
Positron emission tomography
March 1999). "In vivo mapping of cerebral acetylcholinesterase activity in aging and Alzheimer's disease". Neurology. 52 (4): ... Radionuclide angiography. *Radioisotope renography. *Sestamibi parathyroid scintigraphy. *Radioactive iodine uptake test. *Bone ...
Hemofiltration
Angiography. *Digital subtraction angiography *Cerebral angiography. *Aortography. *Fluorescein angiography. *Radionuclide ...
Ophthalmic artery
Fluorescein angiography. References[edit]. .mw-parser-output .reflist{font-size:90%;margin-bottom:0.5em;list-style-type:decimal ...
ಪಲ್ಮನರಿ ಎಂಬಾಲಿಸಮ್ (ಶ್ವಾಸಕೋಶದ ಧಮನಿಬಂಧ) - ವಿಕಿಪೀಡಿಯ
2007). "Computed tomographic pulmonary angiography vs ventilation-perfusion lung scanning in patients with suspected pulmonary ...
Úsáideoir:EÓMurchadha - Vicipéid
Fluoroscopy and angiography are special applications of X-ray imaging, in which a fluorescent screen and image intensifier tube ... Stenosis of the carotid arteries can presage cerebral infarcts (strokes). DVT in the legs can be found via ultrasound before it ... CT scanning has become the test of choice in diagnosing some urgent and emergent conditions such as cerebral hemorrhage, ... certain types of cerebral aneurysm clips, metal fragments in the eyes and some metallic hardware due to the powerful magnetic ...
Radiology
Fluoroscopy and angiography are special applications of X-ray imaging, in which a fluorescent screen and image intensifier tube ... CT scanning has become the test of choice in diagnosing some urgent and emergent conditions, such as cerebral hemorrhage, ... certain types of cerebral aneurysm clips, metal fragments in the eyes and some metallic hardware due to the powerful magnetic ...
Perfusion
Cerebral edema. References[edit]. *^ American Psychological Association (APA): perfusion. (n.d.). Dictionary.com Unabridged (v ... Application of this process is used to develop radionuclide angiography, a method of diagnosing heart problems. ... Cerebral blood flow determination by rapid-sequence computed-tomography: theoretical analysis. Radiology 137: 679-686, December ... August 2000). "Continuous monitoring of regional cerebral blood flow: experimental and clinical validation of a novel thermal ...
Cerebral Angiography | SpringerLink
The history of cerebral angiography is discussed, extending from the first human angiogram in 1927 to the present time.... ... This chapter covers the essential aspects of diagnostic cerebral angiography. ... This chapter covers the essential aspects of diagnostic cerebral angiography. The history of cerebral angiography is discussed ... Cloft HJ, Joseph GJ, Dion JE (1999) Risk of cerebral angiography in patients with subarachnoid hemorrhage, cerebral aneurysm, ...
Cerebral Angiography (Angiogram)
Current and accurate information for patients about Cerebral Angiography. Learn what you might experience, how to prepare for ... Cerebral Angiography. Cerebral angiography uses a catheter, x-ray imaging guidance and an injection of contrast material to ... What is Cerebral Angiography. Angiography is a minimally invasive medical test that uses x-rays and an iodine-containing ... Cerebral angiography is also called intra-arterial digital subtraction angiography (IADSA). This phrase refers to acquiring the ...
Cerebral angiography - Wikipedia
Cerebral angiography is a form of angiography which provides images of blood vessels in and around the brain, thereby allowing ... cerebral angiography may yield better images than less invasive methods such as computed tomography angiography and magnetic ... cerebral angiography allows certain treatments to be performed immediately, based on its findings. In recent decades, cerebral ... In some jurisdictions, cerebral angiography is required to confirm brain death.[citation needed] Prior to the advent of modern ...
Cerebral Angiography | Sutter Health
Cerebral angiography is a procedure that uses a special dye (contrast material) and x-rays to see how blood flows through the ... Angiography with a catheter is used less often now. This is because MRA (magnetic resonance angiography) and CT angiography ... Intra-arterial digital subtraction angiography; IADSA How the Test is Performed. Cerebral angiography is done in the hospital ... Cerebral angiography is a procedure that uses a special dye (contrast material) and x-rays to see how blood flows through the ...
Cerebral Angiography / Angiogram | MemorialCare
Cerebral angiography may also be called intra-arterial digital subtraction angiography (IADSA). ... Cerebral Angiography is a minimally invasive medical test that uses x-rays and an iodine-containing contrast material to ... In cerebral angiography, x-ray images show blood vessel abnormalities in the brain. Results from a cerebral angiogram are more ... Angiography can be used to help detect and diagnose acute stroke. The images that result from cerebral angiography are not ...
Cerebral angiography | University of Maryland Medical Center
Cerebral angiography. Definition. Cerebral angiography is a procedure that uses a special dye (contrast material) and x-rays to ... Cerebral angiography is most often used to identify or confirm problems with the blood vessels in the brain. ... Angiography with a catheter is used less often now. This is because MRA (*magnetic resonance angiography ... Vertebral angiogram; Angiography - head; Carotid angiogram; Cervicocerebral catheter-based angiography; Intra-arterial digital ...
Cerebral angiography: MedlinePlus Medical Encyclopedia
Cerebral angiography is a procedure that uses a special dye (contrast material) and x-rays to see how blood flows through the ... Cerebral angiography (cerebral angiogram) - diagnostic. In: Chernecky CC, Berger BJ, eds. Laboratory Tests and Diagnostic ... Angiography with a catheter is used less often now. This is because MRA (magnetic resonance angiography) and CT angiography ... Cerebral angiography is a procedure that uses a special dye (contrast material) and x-rays to see how blood flows through the ...
5-F catheter in cerebral angiography (Journal Article) | SciTech Connect
Front View Cerebral Angiography Monitoring Stock Video & More Clips of Aneurysm 976881780 | iStock
Black And White Cerebral Angiography Scan Stock Video - Download Video Clip Now - iStock
Cerebral Angiography
... on WN Network delivers the latest Videos and Editable pages for News & Events, including Entertainment, ... Cerebral angiography. Cerebral angiography is a form of angiography which provides images of blood vessels in and around the ... Cerebral angiography. Cerebral angiography is a form of angiography which provides images of blood vessels in and around the ... Based on procedure, the market is segmented into coronary angiography, peripheral angiography, cerebral angiography, vascular ...
Cerebral Angiography
... on WN Network delivers the latest Videos and Editable pages for News & Events, including Entertainment, ... Coronary Angiography, Pulmonary Angiography, Cerebral Angiography, Extremity Angiography, Renal Angiography ... Angiography ... Cerebral angiography. Cerebral angiography is a form of angiography which provides images of blood vessels in and around the ... Cerebral angiography. Cerebral angiography is a form of angiography which provides images of blood vessels in and around the ...
Cerebral Vessel Enhancement Using Rigid Registration in Three-Dimensional CT Angiography | SpringerLink
... and other vascular anomalies in a brain CT angiography. Our method is composed o ... we propose a robust 3D rigid registration technique for detecting cerebral aneurysms, arterial stenosis, ... Cerebral Vessel Enhancement Using Rigid Registration in Three-Dimensional CT Angiography. In: Sanfeliu A., Martínez Trinidad J. ... Napel, S., Marks, M.P., Rubin, G.D., Dake, M.D., McDonnell, C.H., Song, S.M., Enzmann, D.R., Jeffrey, R.B.: CT Angiography with ...
Cerebral Angiography | SpringerLink
This revised and enlarged edition of Cerebral Angiography, which includes new angiographic studies and illustrative drawings, ... This revised and enlarged edition of Cerebral Angiography, which includes new angiographic studies and illustrative drawings, ... While the emphasis throughout is on the diagnostic value of cerebral angiography, many examples of endovascular treatment in ... Atherosclerosis Cerebral Vessels Endovacular Treatment Occlusive Diseases Vascular Abnormalities Venous Thrombosis Authors and ...
Which specific anatomical features of posterior cerebral artery (PCA) stroke may be identified on angiography?
... Updated: Jul 30 ... In this anatomical study, 53 patients underwent computed tomography angiography, 49 underwent digital subtraction angiography, ... and Which specific anatomical features of posterior cerebral artery (PCA) stroke may be identified on angiography? What to Read ... de Monyé C, Dippel DW, Siepman TA, Dijkshoorn ML, Tanghe HL, van der Lugt A. Is a fetal origin of the posterior cerebral artery ...
Neurologic complications of cerebral angiography. | American Journal of Neuroradiology
Neurologic complications of cerebral angiography.. J E Heiserman, B L Dean, J A Hodak, R A Flom, C R Bird, B P Drayer, E K Fram ... Neurologic complications of cerebral angiography.. J E Heiserman, B L Dean, J A Hodak, R A Flom, C R Bird, B P Drayer, E K Fram ... Neurologic complications of cerebral angiography.. J E Heiserman, B L Dean, J A Hodak, R A Flom, C R Bird, B P Drayer and E K ... Neurologic complications of cerebral angiography. Message Subject (Your Name) has sent you a message from American Journal of ...
Cerebral Angiography - Stock Image C003/4771 - Science Photo Library
Color enhanced medicine radiology angiography showing normal blood vessels in the brain. (Enhancement of GA3404) - Stock Image ... Keywords: angiography, arteriography, blood vessel, brain, brain angiography, cardiovascular, cardiovascular system, cerebral, ... Caption: Color enhanced medicine radiology angiography showing normal blood vessels in the brain. (Enhancement of GA3404) ... cerebral angiograph, circulatory system, medical, medical imaging, nervous system, x ray, x-ray, xray ...
Cerebral angiography | The Journal of the American Osteopathic Association
Cerebral angiography You will receive an email whenever this article is corrected, updated, or cited in the literature. You can ... Cerebral angiography. The Journal of the American Osteopathic Association, March 1957, Vol. 56, 410-412. doi:https://doi.org/ ... RUBERG R. Cerebral angiography. J Am Osteopath Assoc 1957;56(7):410-412. doi: https://doi.org/. ...
Intravenous Flat-Detector Computed Tomography Angiography for Symptomatic Cerebral Vasospasm following Aneurysmal Subarachnoid...
What is the role of catheter cerebral angiography in the evaluation of posterior cerebral artery (PCA) stroke?
Catheter cerebral angiography remains the criterion standard for evaluation of vascular anatomy. However, it is a more invasive ... Drugs & Diseases , Neurology , Posterior Cerebral Artery Stroke Q&A What is the role of catheter cerebral angiography in the ... Catheter cerebral angiography remains the criterion standard for evaluation of vascular anatomy. However, it is a more invasive ... de Monyé C, Dippel DW, Siepman TA, Dijkshoorn ML, Tanghe HL, van der Lugt A. Is a fetal origin of the posterior cerebral artery ...
Cerebral Angiography
A. Sharath Reddy at MaxCure Hospitals Hyderabad India, Angiogram: What I wish Id known before the procedure, Cerebral ... Diagnostic Cerebral Angiography, Live Angiography (CAG) by Dr. ... Cerebral angiography. Cerebral angiography is a form of ... Cerebral angiography. Cerebral angiography is a form of angiography which provides images of blood vessels in and around the ... Cerebral Angiography Procedure. Cerebral Angiography Procedure. Digital subtraction angiography (DSA) is a fluoroscopy ...
Digital Intravenous Cerebral Angiography | (1981) | Seeger | Publications | Spie
Cerebral angiography in children | The Journal of the American Osteopathic Association
Cerebral angiography in children. The Journal of the American Osteopathic Association, December 1972, Vol. 72, 390. doi:https ... Cerebral angiography in children You will receive an email whenever this article is corrected, updated, or cited in the ... Cerebral angiography in children. J Am Osteopath Assoc 1972;72(4):390. doi: https://doi.org/. ...
Magnetic resonance imaging/magnetic resonance angiography fusion technique for intraoperative navigation during microsurgical...
... resonance angiography fusion technique for intraoperative navigation during microsurgical resection of cerebral arteriovenous ... Complete AVM obliteration was demonstrated on intraoperative angiography in all cases.. CONCLUSIONS: Precise anatomical ... and this detail may be provided by fusing MR images and MR angiography (MRA) sequences. The current study describes the use of ...
Diagnostic Cerebral Angiography
... on WN Network delivers the latest Videos and Editable pages for News & Events, including ... Cerebral angiography. Cerebral angiography is a form of angiography which provides images of blood vessels in and around the ... In addition, cerebral angiography allows certain treatments to be performed immediately, based on its findings. If, for example ... For some applications this method may yield better images than less invasive methods such as computed tomography angiography ...
Intra-Arterial Thrombolysis for Left Middle Cerebral Artery Embolic Stroke During Coronary Angiography | Circulation
Intra-Arterial Thrombolysis for Left Middle Cerebral Artery Embolic Stroke During Coronary Angiography. Patrizia Presbitero, ... The carotid angiogram, performed 2 hours after coronary angiography at the beginning of cerebral symptoms, reveals total ... The carotid angiogram, performed immediately after coronary angiography at the beginning of cerebral symptoms, reveals total ... Intra-Arterial Thrombolysis for Left Middle Cerebral Artery Embolic Stroke During Coronary Angiography ...
Heparin and Air Filters Reduce Embolic Events Caused by Intra-Arterial Cerebral Angiography | Circulation
Clinically silent cerebral lesions after cerebral catheter angiography. Rofo. 2001; 173: 300-305. ... Figure 1. MESs during intra-arterial cerebral angiography. Transcranial Doppler sonography of both middle cerebral arteries ... cerebral angiography and transcranial Doppler sonography during angiography were used to evaluate the frequency of cerebral ... 25 A large number of microembolic signals in the cerebral vessels has been described not only during cerebral angiography9 but ...
"Real-world" comparison of non-invasive imaging to conventional catheter angiography in the diagnosis of cerebral aneurysms. -...
"Real-world" comparison of non-invasive imaging to conventional catheter angiography in the diagnosis of cerebral aneurysms.. ... it has become increasingly difficult to justify the role of conventional angiography [digital subtraction angiography (DSA)] ... Based on numerous reports citing high sensitivity and specificity of non-invasive imaging [e.g. computed tomography angiography ... CTA) or magnetic resonance angiography (MRA)] in the detection of intracranial aneurysms, ...
Applied Cerebral Angiography - Thieme & Frohberg
This book offers detailed guidance on the diagnostic use of cerebral angiography based on precise... ... Applied Cerebral Angiography. Normal Anatomy and Vascular Pathology. Auflage. 3/E 2018. ... Beyond explaining the diagnostic value of cerebral angiography, a key aim is to equip readers with the precise knowledge of the ... This book offers detailed guidance on the diagnostic use of cerebral angiography based on precise description of the ...
Transcranial Doppler correlation with cerebral angiography in sickle cell disease. | Stroke
Transcranial Doppler correlation with cerebral angiography in sickle cell disease.. R J Adams, F T Nichols, R Figueroa, V McKie ... Transcranial Doppler correlation with cerebral angiography in sickle cell disease.. R J Adams, F T Nichols, R Figueroa, V McKie ... Transcranial Doppler correlation with cerebral angiography in sickle cell disease.. R J Adams, F T Nichols, R Figueroa, V McKie ... we compared transcranial Doppler and cerebral angiography in a primarily young, symptomatic group of 33 patients (18 males and ...
AneurysmsCarotidCatheterInfarctionAneurysmVascularAngiogramSubtractionProcedureOcclusionAnterior CerebrComputed TomographyVesselsAngiogramsMagneticArterialArteryDiagnostic use of cerebral angiographyComplicationUnderwentAngiographicArteriographyStrokeContrastVenousAnatomyBlood flowAssessmentEndovascularClinicalInjectionRotational angiographyConventional angiographyIntraoperative angiographyInvasivePreoperativeDiagnosis of cerebralComplicationsInterventional NeuroradiologyIncidenceRadiologistsFindings
Aneurysms23
- Haughton VM, Rosenbaum AE, Baker RA, Plaistowe RL (1975) Lateral projections with inclined head for angiography of basal cerebral aneurysms. (springer.com)
- Cerebral angiography uses a catheter, x-ray imaging guidance and an injection of contrast material to examine blood vessels in the brain for abnormalities such as aneurysms and disease such as atherosclerosis (plaque). (radiologyinfo.org)
- Cerebral angiography is a form of angiography which provides images of blood vessels in and around the brain, thereby allowing detection of abnormalities such as arteriovenous malformations and aneurysms. (wikipedia.org)
- The application areas for neurovascular guidewires have been classified into arteriovenous malformations, intracranial and extra-cranial angioplasty, aneurysms, minimally invasive spine surgery, and cerebral angiography . (wn.com)
- In this paper, we propose a robust 3D rigid registration technique for detecting cerebral aneurysms, arterial stenosis, and other vascular anomalies in a brain CT angiography. (springer.com)
- Characteristics of posterior cerebral artery aneurysms: an angiographic analysis of 93 aneurysms in 81 patients. (medscape.com)
- In such disorders as vasculitis or intracranial aneurysms, the sensitivity and specificity of such noninvasive techniques as CT angiography and MR angiography do not suffice to replace intra-arterial angiography. (ahajournals.org)
- Real-world" comparison of non-invasive imaging to conventional catheter angiography in the diagnosis of cerebral aneurysms. (nih.gov)
- Based on numerous reports citing high sensitivity and specificity of non-invasive imaging [e.g. computed tomography angiography (CTA) or magnetic resonance angiography (MRA)] in the detection of intracranial aneurysms, it has become increasingly difficult to justify the role of conventional angiography [digital subtraction angiography (DSA)] for diagnostic purposes. (nih.gov)
- Aneurysms were located in the internal carotid artery in 12 patients, middle cerebral artery in six, anterior cerebral artery in three, basilar artery bifurcation in one, and junction of the vertebral artery (VA) and posterior inferior cerebellar artery in one. (thejns.org)
- To identify the clinical significance of routine postoperative angiography, the incidence of residual aneurysms after clipping and the risk factors related to the occurrence of residual aneurysm are investigated. (jkns.or.kr)
- Of the 104 aneurysms, 9 (8.7%) had aneurysmal remnant on postoperative angiography. (jkns.or.kr)
- Microsurgical Treatment of Middle Cerebral Artery Aneurysms. (jkns.or.kr)
- OBJECTIVES: Multidetector computed tomography angiography (MD-CTA) has become the first-line screening technique for patients with subarachnoid hemorrhage not only for detecting aneurysms, but also for providing decisive angioarchitectural information. (inserm.fr)
- The anterior cerebral arterial circle (ACAC) is the most common location for anatomical variations and aneurysms. (inserm.fr)
- Methods Fourteen patients with 16 cerebral aneurysms underwent novel 4D-CTA followed by 3D-RA. (bmj.com)
- 4D-CTA may be considered as a follow-up imaging tool for hemodynamic assessment of cerebral aneurysms. (bmj.com)
- Background Cerebral angiography remains the gold standard for the detection of mycotic aneurysms, and it has been estimated that ruptured mycotic aneurysms result in 5% of the neurological complications of patients with infective endocarditis (IE). (bmj.com)
- Approximately 9% of patients with IE at our institution who undergo cerebral angiography have mycotic aneurysms. (bmj.com)
- Dr. Ples was the first to introduce surgical treatment for cerebral aneurysms in Timisoara and has 24 years' experience in cerebral vascular pathology. (springer.com)
- The purpose was to evaluate the incidence and risk factors for rebleeding during cerebral angiography in ruptured intracranial aneurysms . (bvsalud.org)
- Among 1896 patients with ruptured intracranial aneurysms between September 2006 and December 2013, a total of 11 patients who experienced rebleeding of the ruptured aneurysms during digital subtraction angiography (DSA) were recruited in this study. (bvsalud.org)
- Shalmani, A.H. , Dehmeshki, J. , Qanadli, S. and Crocker, M. (2010) Computer aided detection of cerebral aneurysms using CT angiography. (kingston.ac.uk)
Carotid16
- Results from a cerebral angiogram are more accurate than those produced by carotid Doppler. (memorialcare.org)
- Venema, H.W., Hulsmans, F.J.H., den Heeten, G.J.: CT Angiography of the Circle of Willis and Intracranial Internal Carotid Arteries: Maximum Intensity Projection with Matched Mask Bone Elimination - Feasibility Study. (springer.com)
- All complications occurred in patients presenting with a history of stroke/transient ischemic accident or carotid bruit, which may reflect the difficulty of performing angiography in this population at risk for atherosclerotic changes. (ajnr.org)
- The left carotid digital subtraction angiography that was performed immediately revealed total occlusion of the M2 part of the left MCA. (ahajournals.org)
- The carotid angiogram, performed immediately after coronary angiography at the beginning of cerebral symptoms, reveals total embolic occlusion of the M2 part of the left MCA with TIMI 0 flow (arrow). (ahajournals.org)
- Ischemic stroke resulting from a left MCA occlusion was confirmed by a left carotid digital subtraction angiography. (ahajournals.org)
- An immediate carotid angiogram to assess cerebral artery occlusion appears to be the best and least time-consuming approach. (ahajournals.org)
- When the brain is being evaluated (called cerebral angiography), the catheter is threaded to the aorta, then to the large arteries that carry blood to the brain (carotid and vertebral arteries). (merckmanuals.com)
- We report a rare case of repeated focal seizures and prolonged left hemiparesis after cerebral angiography and BTO of the right internal carotid artery. (scirp.org)
- MCA = middle cerebral artery, PICA = posterior inferior cerebellar artery, ICA = internal carotid artery, VBJ = vertebrobasilar junction. (benthamopen.com)
- CT angiography of the cerebral arteries (also known as a CTA carotids or an arch to vertex angiogram) is a noninvasive technique allows visualization of the internal and external carotid arteries and vertebral arteries and can include just the intracranial compartment or also extend down to the arch of the aorta. (ineas.org)
- Reid, MH 1977, ' Bilateral cerebral angiography with catheterization of only one carotid artery ', Neuroradiology , vol. 14, no. 2, pp. 65-66. (elsevier.com)
- The procedure is also used to embolize highly vascular meningiomas or to study cerebral dominance by injection of barbiturate into the carotid artery (the Wada test) in left-handed individuals who are to have surgery near language areas. (cancerstreatment.com)
- Thus selective angiography may be performed following injection directly into veins or arteries such as the carotid, the vertebral, or the vessels of the extremities. (drugs.com)
- CEREBRAL angiography can be performed by open surgical procedure, with direct injection of the common carotid artery, or by percutaneous needle puncture of the carotid artery. (jamanetwork.com)
- The second edition of this atlas presents a wealth of normal and pathologic findings observed on CT angiography with 3D reconstruction in diverse clinical applications, including the imaging of cerebral, carotid, thoracic, coronary, abdominal, and peripheral vessels. (springer.com)
Catheter13
- In cerebral angiography, a thin plastic tube called a catheter is inserted into an artery in the leg or arm through a small incision in the skin. (radiologyinfo.org)
- Angiography with a catheter is used less often now. (sutterhealth.org)
- What is the role of catheter cerebral angiography in the evaluation of posterior cerebral artery (PCA) stroke? (medscape.com)
- Catheter cerebral angiography remains the criterion standard for evaluation of vascular anatomy. (medscape.com)
- One hundred fifty diagnostic cerebral angiographies were randomized into 50 procedures, each using conventional angiographic technique, or systemic heparin treatment throughout the procedure, or air filters between the catheter and both the contrast medium syringe and the catheter flushing. (ahajournals.org)
- Unlike traditional angiography that involves placing a tube (catheter) int. (stlukes-stl.com)
- After contrast agent is injected through the catheter, a technician takes x-rays of the arteries and veins being evaluated (in the head for cerebral angiography), which are outlined by the contrast agent. (merckmanuals.com)
- INTRODUCTION: Heubner's recurrent artery (RAH) in brain selective catheter angiograms (digital subtraction angiography, DSA) was evaluated. (uzh.ch)
- Catheter-directed digital subtraction angiography (DSA) is considered the standard for evaluation of superficial temporal to middle cerebral artery (STA-MCA) bypass patency. (elsevier.com)
- Depending on the type of angiography procedure being performed, the contrast medium is either injected by hand with a syringe or is mechanically injected with an automatic injector connected to the catheter. (encyclopedia.com)
- After the angiogram is concluded the catheter is removed and the small opening made to introduce it is closed by manual compression or by a â ¦ Angiography is a general term for the radiographic examination of the blood vessels. (ineas.org)
- The purpose of this study was to evaluate the use of MR venography in the depiction of the normal intracranial venous anatomy and its variants, to assess its potential pitfalls in the diagnosis of dural venous sinus thrombosis, and to compare the findings with those of conventional catheter angiography. (teknotasarim.com)
- Catheter - A long, thin, flexible tube used in angiography to inject contrast material into the arteries. (thefreedictionary.com)
Infarction8
- Isolated lateral thalamic infarction: the role of posterior cerebral artery disease. (medscape.com)
- Confusional states following posterior cerebral artery infarction. (medscape.com)
- Cerebral infarction in sickle cell disease is associated with arterial narrowing or occlusions of intracranial arteries. (ahajournals.org)
- Cerebral infarction in young people. (bmj.com)
- Because the fluorescein angiography procedure described here allows intraoperative confirmation of the patency of perforating arteries located deep inside the surgical field, it can be practically used for preventing unexpected cerebral infarction during aneurysm surgery. (thejns.org)
- Especially patient with type 2 diabetes (T2D), the risk of stroke is 1.5-3 times higher than that of the healthy human [ 6 ], which the main cause was cerebral infarction [ 7 ]. (alliedacademies.org)
- Even though we had re-adjusted the clip in two cases because of parent arterial narrowing on postoperative angiography, two patients died due to cerebral infarction. (jkns.or.kr)
- Editors: Salamon, G. Cerebral angiography is frequently normal in patients with np sle including those with cerebral infarction on mri. (ineas.org)
Aneurysm17
- Jayaraman, M.V., Mayo-Smith, W.W., Doberstein, C.E.: Intracanalicular Aneurysm of the Anterior Inferior Cerebellar Artery Revealed by Multi-Detector CT Angiography. (springer.com)
- Digital subtraction angiogram demonstrating an acute L posterior cerebral artery (PCA) occlusion (red arrow) following balloon-assisted coiling of a basilar tip aneurysm. (medscape.com)
- Digital subtraction angiogram demonstrating revascularization of acute L posterior cerebral artery (PCA) occlusion (red arrow) during a balloon-assisted basilar tip aneurysm revascularization with use of balloon angioplasty. (medscape.com)
- The authors performed fluorescein cerebral angiography in patients after aneurysm clip placement to confirm the patency of the parent artery, perforating artery, and other arteries around the aneurysm. (thejns.org)
- Multidetector computed tomography angiography (MD-CTA) is increasingly being used for the detection and treatment planning of intracranial aneurysm. (inserm.fr)
- Clinical Significance of Routine Cerebral Angiography after Cerebral Aneurysm Surgery. (jkns.or.kr)
- Of 255 patients who underwent aneurysm clipping between 1999 and 2002, ninety one patients underwent routine angiography after aneurysm clipping by one surgeon. (jkns.or.kr)
- Routine postoperative angiography has little clinical significance in view of the incidence and management of the residual aneurysm or major arterial narrowing/occlusion. (jkns.or.kr)
- Postoperative angiography seems to be necessary in limited patients after aneurysm surgery. (jkns.or.kr)
- Contrast-enhanced computed tomography angiography is usually valuable for the evaluation of clipped cerebral aneurysm, but it has side effects of contrast medium. (surgicalneurologyint.com)
- We use MAGNETOM Aera 1.5T (SIEMENS, München, Germany) and perform pointwise encoding time reduction with radial acquisition (PETRA)-MRA using ultrashort TE for the assessment of the cerebral aneurysm after clipping. (surgicalneurologyint.com)
- We would like to report the usefulness of magnetic resonance angiography (MRA) with ultrashort echo time (TE) for the assessment of the cerebral aneurysm after clipping. (surgicalneurologyint.com)
- Non-invasive methods are better for the assessment of the cerebral aneurysm after clipping. (surgicalneurologyint.com)
- Case 1: clipping for the unruptured aneurysm at the right middle cerebral artery using the Sugita titanium clip (Mizuho, Tokyo, Japan). (surgicalneurologyint.com)
- To the best of our knowledge, this is the first report on the usefulness of PETRA-MRA for the assessment of the cerebral aneurysm and its neck remnant after clipping. (surgicalneurologyint.com)
- This study aims to compare CFD results from aneurysm models segmented from three-dimensional rotational angiography (3D-RA) versus novel four-dimensional CT angiography (4D-CTA). (bmj.com)
- The maximum eye lens dose of 1492 mGy was measured at LOC region for an AVM case, followed by 907 mGy for an aneurysm case and 665 mGy for a diagnostic angiography procedure. (edu.au)
Vascular16
- citation needed] Prior to the advent of modern neuroimaging techniques such as MRI and CT in the mid-1970s, cerebral angiographies were frequently employed as a tool to infer the existence and location of certain kinds of lesions and hematomas by looking for secondary vascular displacement caused by the mass effect related to these medical conditions. (wikipedia.org)
- The first part of the book describes the normal anatomy of the cerebral arteries and veins, with attention to morphological aspect, embryological development, function, and vascular territories. (springer.com)
- Arboix A, Arbe G, García-Eroles L, Oliveres M, Parra O, Massons J. Infarctions in the vascular territory of the posterior cerebral artery: clinical features in 232 patients. (medscape.com)
- However, when they produce unclear findings or more information is needed about the vascular anatomy, angiography is required. (medscape.com)
- Coronary #Angiography ( CAG ) live procedure performed by Dr. A . Sharath Reddy , Senior Interventional Cardiologist and Vascular Specialist at MaxCure Hospitals Hyderabad India . (wn.com)
- To explore the characteristics of cerebral vascular angiography from transient ischemic attack (TIA) accompanied with type 2 diabetes (T2D). (alliedacademies.org)
- By use of C type arm angiography system, cerebral vascular stenotic degrees, determination of intracranial or extracranial artery, and the collateral compensative capacity were compared between two groups. (alliedacademies.org)
- Severe cerebral vascular stenosis is more easy to happen in patients of TIA accomplicated with T2D, which was distinguished by multiple vascular lesions, diffuse vascular lesions and less collateral compensative capacity. (alliedacademies.org)
- Cerebral Angiography: Normal Anatomy and Vascular Pathology di Bradac, Gianni Boris su AbeBooks.it - ISBN 10: 3642156770 - ISBN 13: 9783642156779 - Springer Verlag - 2011 - Rilegato This anatomy module of e-Anatomy was designed and created by MD Micheau Antoine and MD Hoa Denis, radiologists in Montpellier (France). (ineas.org)
- Cerebral Angiography: Normal Anatomy and Vascular Pathology (English Edition) eBook: Gianni Boris Bradac: Amazon.it: Kindle Store Cerebral angiography is an interventional procedure for the diagnosis and/or treatment of intracranial pathology. (ineas.org)
- Cerebral Angiography: Normal Anatomy and Vascular Pathology (English Edition) eBook: Gianni Boris Bradac: Amazon.it: Kindle Store Utilizziamo cookie e altre tecnologie simili per migliorare la tua esperienza di acquisto, per fornire i nostri servizi, per capire come i nostri clienti li utilizzano in modo da poterli migliorare e per visualizzare annunci pubblicitari. (teknotasarim.com)
- Cerebral Angiography: Normal Anatomy and Vascular Pathology Features: Cerebral Angiography By (author): Gianni Boris Bradac Cerebral Angiography is a comprehensive and well-illustrated guide to the diagnostic use of cerebral angiography. (teknotasarim.com)
- Cerebral angiography demonstrates decreased cerebral venous drainage and dilation of the deep cerebral veins.64,65 A variety of vascular abnormalities, including thrombotic lesions, dural venous sinus abnormalities, and arteriovenous malformations, have been observed in approximately one third of patients. (teknotasarim.com)
- Cerebral angiography provides precise anatomical imaging of the cerebral vasculature and its variations, with accurate identification of vascular territories and their specific function. (teknotasarim.com)
- Thus, patients with IE presenting with intracranial hemorrhage should undergo vascular imaging, preferably with cerebral angiography. (bmj.com)
- This edition is the outcome of 18 years of work by a renowned radiological team whose research focuses specifically on vascular pathology of the whole body and the role of CT angiography in its assessment. (springer.com)
Angiogram7
- The history of cerebral angiography is discussed, extending from the first human angiogram in 1927 to the present time. (springer.com)
- Darren B. Orbach, MD, PhD, Neurointerventional Radiologist at Children's Hospital Boston , explains the process of a cerebral angiogram and the role of image guidance and catheters. (wn.com)
- It produces a cerebral angiogram, or an image that can help your doctor find blockages â ¦ This revised and enlarged edition of Cerebral Angiography, which includes new angiographic studies and illustrative drawings, offers detailed guidance on diagnostic use of the procedure. (teknotasarim.com)
- What is a cerebral angiogram? (neuroendomke.com)
- A cerebral angiogram is an imaging technique used to see how blood flows in the arteries and veins of the brain in real time. (neuroendomke.com)
- Why is a cerebral angiogram important? (neuroendomke.com)
- What should I expect during a cerebral angiogram? (neuroendomke.com)
Subtraction14
- Cerebral angiography is also called intra-arterial digital subtraction angiography (IADSA). (radiologyinfo.org)
- This is called digital subtraction angiography (DSA). (sutterhealth.org)
- In this anatomical study, 53 patients underwent computed tomography angiography, 49 underwent digital subtraction angiography, and 6 underwent magnetic resonance angiography. (medscape.com)
- Initial studies have been directed toward digital video subtraction angiography (DVSA) using intravenous injections of contrast material. (spie.org)
- Intra-arterial digital subtraction angiography (IA-DSA) has remained the "gold standard" in the assessment of cerebral vessels. (ahajournals.org)
- Digital Subtraction Angiography (DSA) was set as the gold standard by imaging for evaluating the cerebral artery stenosis and occlusion [ 11 , 12 ]. (alliedacademies.org)
- Need help in choosing the right cerebral digital subtraction angiography dsa hospital? (credihealth.com)
- Get detailed info on services & amenities, accreditations, doctors and other credentials of top hospitals for cerebral-digital-subtraction-angiography-dsa in Mumbai. (credihealth.com)
- Check OPD schedule of doctors and book appointment online top hospitals for cerebral-digital-subtraction-angiography-dsa in Mumbai. (credihealth.com)
- The gold standard for the diagnosis of CVS is digital subtraction angiography (DSA), but the utility for routine screening with DSA during the early course of aSAH is unclear. (heart.org)
- Diagnostic digital subtraction cerebral angiography was performed 4 days after admission with the nonionic contrast media Iomeprol. (ovid.com)
- Comparison of hand injection with mechanical injection for digital subtraction selective cerebral angiography. (openrepository.com)
- 100 patients undergoing digital subtraction cerebral angiography were randomized to have contrast delivered by either hand or mechanical injection. (openrepository.com)
- However, radiation exposure to the radiologist's hand and body were reduced by up to 70% by using a mechanical injector for contrast delivery during selective cerebral angiography with digital subtraction. (openrepository.com)
Procedure8
- Cerebral angiography is a procedure that uses a special dye (contrast material) and x-rays to see how blood flows through the brain. (sutterhealth.org)
- The Stentrode system is small and flexible enough to safely pass through curving blood vessels in a procedure called cerebral angiography , eliminating the need for open brain surgery. (wn.com)
- This revised and enlarged edition of Cerebral Angiography , which includes new angiographic studies and illustrative drawings, offers detailed guidance on diagnostic use of the procedure. (springer.com)
- You had a procedure called cerebral angiography. (vidanthealth.com)
- Patients who have blood clotting problems, have a known allergy to contrast mediums, or are allergic to iodine, a component of some contrast mediums, may also not be suitable candidates for an angiography procedure. (encyclopedia.com)
- Diagnostic cerebral angiography has a low complication rate and maintaining this safety profile in children is an expectation for all practitioners performing this procedure," Dr. Pearl said. (childrensnational.org)
- Although it is an invasive procedure, cerebral angiography is considered the best way (=gold standard) to look at the blood vessels. (drlimeilin.com)
- What makes cerebral angiography an invasive procedure? (drlimeilin.com)
Occlusion1
- 3-5 Furthermore, the apposition of thrombus to the embolic material may be an important component of cerebral artery occlusion. (ahajournals.org)
Anterior Cerebr2
- RESULTS: A total of 24 RAHs were recognised in 20 patients: 7 arose from the A1, 5 from the anterior cerebral artery (ACA)-anterior communicating artery (Acom), 11 from the A2, whereas in 1 case, the segment of origin from the ACA could not be identified. (uzh.ch)
- Changes in the middle and anterior cerebral artery were similarly visible in both MRA and CA studies. (jkns.or.kr)
Computed Tomography5
- For some applications[citation needed] cerebral angiography may yield better images than less invasive methods such as computed tomography angiography and magnetic resonance angiography. (wikipedia.org)
- Computed Tomography Magnetic Resonance Imaging Ultrasound Cerebral Angiography Nuclear Imaging Others (includes Electrocardiography, Echocardiography, etc. (wn.com)
- Jin Pyeong Jeon, Seung Hun Sheen, and Yong-Jun Cho, "Intravenous Flat-Detector Computed Tomography Angiography for Symptomatic Cerebral Vasospasm following Aneurysmal Subarachnoid Hemorrhage," The Scientific World Journal , vol. 2014, Article ID 315960, 8 pages, 2014. (hindawi.com)
- Feasibility evaluation of the One-Step Stroke Protocol, which is an interleaved cerebral computed tomography perfusion (CTP) and neck volumetric computed tomography angiography (vCTA) scanning technique using wide-detector computed tomography, and to assess the image quality of vCTA. (springer.com)
- Anatomic variants of the anterior part of the cerebral arterial circle at multidetector computed tomography angiography. (inserm.fr)
Vessels19
- Cerebral angiography produces very detailed, clear and accurate pictures of blood vessels in the brain and may eliminate the need for surgery. (radiologyinfo.org)
- Angiography is a minimally invasive medical test that uses x-rays and an iodine-containing contrast material to produce pictures of blood vessels in the brain. (radiologyinfo.org)
- Cerebral angiography is most often used to identify or confirm problems with the blood vessels in the brain. (sutterhealth.org)
- Brain vessels angiography. (istockphoto.com)
- Color enhanced medicine radiology angiography showing normal blood vessels in the brain. (sciencephoto.com)
- Beyond explaining the diagnostic value of cerebral angiography, a key aim is to equip readers with the precise knowledge of the anatomy of cerebral vessels required for optimal application of endovascular therapy of pathologies involving the arteries and veins of the brain. (frohberg.de)
- Magnetic resonance angiography (MRA) is an MRI exam of the blood vessels. (stlukes-stl.com)
- Angiography is used to obtain diagnostic information about the blood vessels that carry blood to various parts of the body, particularly whether the vessel is blocked by a blood clot or narrowed by atherosclerosis. (merckmanuals.com)
- A cerebral CTP acquisition not only contains information about tissue perfusion but also allows for reconstructing a dynamic CTA (4D-CTA) to evaluate the intracranial vessels within the covered region. (springer.com)
- Angiography is the x-ray study of the blood vessels. (encyclopedia.com)
- Angiography is used to detect abnormalities or blockages in the blood vessels (called occlusions) throughout the circulatory system and in some organs. (encyclopedia.com)
- Angiography requires the injection of a contrast dye that makes the blood vessels visible to x ray. (encyclopedia.com)
- The first part of the book depicts in detail the normal appearance of the cerebral vessels on angiographic studies. (ineas.org)
- IF ONE WISHES to gain skill in the interpretation of cerebral angiograms, first he must study the anatomy of vessels relative to the surrounding brain. (teknotasarim.com)
- In a few circumstances, neurosurgeons, in preparation for surgery, require a more precise knowledge of the pattern and position of blood vessels, which can be obtained only by angiography . (cancerstreatment.com)
- Diagnostic cerebral angiography is a special test performed to provide a map of the blood vessels in the brain. (drlimeilin.com)
- A cerebral angiography, a diagnostic test that uses X-rays to produce detailed images of the blood vessels in your head, may be recommended before surgery. (vascularsurgeonsydney.com.au)
- Fluorescein dye - An orange dye used to illuminate the blood vessels of the retina in fluorescein angiography. (thefreedictionary.com)
- This study proposes a fully automatic labeling algorithm detecting up to 32 cerebral vessels including arteries and veins, based on 20 data sets of time-resolved contrast-enhanced angiography. (ismrm.org)
Angiograms3
- METHODS: Bilateral cerebral angiograms with antero-posterior, lateral and oblique frontal views were obtained in 100 neurological patients aged from 5 to 90 years. (uzh.ch)
- Although many practitioners perform cerebral angiograms in children, these practitioners have varying levels of prior neuroangiography training and experience. (childrensnational.org)
- Seven of the dissections were noted at the time of contrast material injection for the filming of cerebral angiograms. (elsevier.com)
Magnetic10
- This is because MRA ( magnetic resonance angiography ) and CT angiography give clearer images. (sutterhealth.org)
- Magnetic resonance imaging/magnetic resonance angiography fusion technique for intraoperative navigation during microsurgical resection of cerebral. (nih.gov)
- Magnetic resonance imaging/magnetic resonance angiography fusion technique for intraoperative navigation during microsurgical resection of cerebral arteriovenous malformations. (nih.gov)
- Methods and Results- In a prospective study, diffusion-weighted magnetic resonance imaging (DW-MRI) before and after intra-arterial cerebral angiography and transcranial Doppler sonography during angiography were used to evaluate the frequency of cerebral embolism. (ahajournals.org)
- To assess the role of magnetic resonance angiography(MRA) and the effect of encephaloduroarteriosynangiosis (EDAS) on the pediatric moyamoya disease(MMD), we analyzed the findings of MRA comparing with conventional angiography(CA) and cerebral blood flow(CBF) studies using 99m Tc-HMPAO SPECT or H2O15-PET with or without diamox enhancement, and focusing on changes following surgery for EDAS. (jkns.or.kr)
- Time-of-flight magnetic resonance angiography (MRA) is a non-invasive and fast method. (surgicalneurologyint.com)
- Time-of-flight magnetic resonance angiography (TOF-MRA) did not describe them due to clip-induced artifact (arrow, b), but pointwise encoding time reduction with radial acquisition (PETRA)-MRA revealed the arteries (arrow, c). (surgicalneurologyint.com)
- Atlas of arteries of the brain on a Time-Of-Flight (TOF) Magnetic Resonance Angiography â ¦ This is a revised and enlarged edition of Cerebral Angiography published in 2011. (teknotasarim.com)
- All subjects underwent quantitative Magnetic Resonance Angiography (QMRA) study with a standard NOVA head-and-neck protocol (VasSol, Inc., Chicago). (ismrm.org)
- This case report documents one of the few reported cases of cerebral angiography-related transient global amnesia associated with magnetic resonance imaging (MRI) evidence of unilateral hippocampal ischemia, most probably as a consequence of a transient reduction in regional hippocampal blood flow. (ovid.com)
Arterial10
- We report 2 consecutive cases of successful local intra-arterial thrombolysis (LIT) for embolic stroke of the middle cerebral artery (MCA) during diagnostic coronary angiography that resulted in complete neurological recovery. (ahajournals.org)
- Background- Intra-arterial cerebral angiography is associated with a low risk for neurological complications, but clinically silent ischemic events after angiography have been seen in a substantial number of patients. (ahajournals.org)
- Conclusions- Air filters and heparin both reduce the incidence of silent ischemic events detected by DW-MRI after intra-arterial cerebral angiography and can potentially lower clinically overt ischemic complications. (ahajournals.org)
- To determine the sensitivity and specificity of transcranial Doppler in detecting significant (greater than or equal to 50% lumen diameter reduction) intracranial arterial lesions, we compared transcranial Doppler and cerebral angiography in a primarily young, symptomatic group of 33 patients (18 males and 15 females) with sickle cell disease. (ahajournals.org)
- Imaging of the cerebral arterial circle (CAC) is essential in neurovascular diseases such as ischemic stroke for detecting arterial occlusions and evaluating arterial supply, and in subarachnoid or intralobar hemorrhage for detecting intracranial malformations. (inserm.fr)
- Single-vessel cervical arterial dissections typically occur in young adults and are a common cause of cerebral ischemia and stroke. (isharonline.org)
- We retrospectively reviewed 12 cases of arterial dissections complicating cerebral angiography and cerebrovascular interventions to evaluate the clinical course of these dissections. (elsevier.com)
- CONCLUSION: Arterial dissections are an uncommon complication of cerebral angiography and cerebrovascular interventions and usually have a benign clinical course. (elsevier.com)
- Dion, Jacques E. / Arterial dissections complicating cerebral angiography and cerebrovascular interventions . (elsevier.com)
- Femoral artery - An artery located in the groin area that is the most frequently accessed site for arterial puncture in angiography. (thefreedictionary.com)
Artery11
- Which specific anatomical features of posterior cerebral artery (PCA) stroke may be identified on angiography? (medscape.com)
- Posterior cerebral artery territory infarcts in the New England Medical Center Posterior Circulation Registry. (medscape.com)
- Posterior cerebral artery territory infarcts: clinical features, infarct topography, causes and outcome. (medscape.com)
- Capitani E, Laiacona M, Pagani R, Capasso R, Zampetti P, Miceli G. Posterior cerebral artery infarcts and semantic category dissociations: a study of 28 patients. (medscape.com)
- Coronary angiography, performed from the femoral approach with 6F catheters, excluded coronary artery disease. (ahajournals.org)
- Bow Hunter's syndrome: surgical vertebral artery decompression guided by dynamic intraoperative angiography. (bioportfolio.com)
- By a retrospective designed method, we analyzed the aortocranial angiography from patients of TIA accomplicated with T2D who were detected by DSA, in order to realize the influence of T2D on cerebral artery blood vessel and provide scientific basis for secondary prevention of patients with TIA and T2D. (alliedacademies.org)
- CTA described M1 and M2 portion of the middle cerebral artery and the vicinity of the clip in detail (arrow, Figure 1a ). (surgicalneurologyint.com)
- On angiography, her basilar artery was filled with intraluminal clot while the vertebral arteries were normal. (isharonline.org)
- In 3 patients, angiography documented dissection of the extracranial 3rd segment of the vertebral artery near the atlantoaxial joint. (isharonline.org)
- Angiography showed a simple and direct fistula between the third segment of the right vertebral artery and the epidural veins at the C-1 level, where the artery runs backward above the arch of the C-1 just proximal to the penetration of the dura. (isharonline.org)
Diagnostic use of cerebral angiography2
- This book offers detailed guidance on the diagnostic use of cerebral angiography based on precise description of the angiographic appearances of normal anatomy and pathological conditions. (frohberg.de)
- Cerebral Angiography is a comprehensive and well-illustrated guide to the diagnostic use of cerebral angiography. (teknotasarim.com)
Complication5
- Cerebral thromboembolism is an uncommon but serious complication of cardiac catheterization. (ahajournals.org)
- There was no neurological complication during or after angiography. (ahajournals.org)
- BACKGROUND AND PURPOSE: Iatrogenic dissections are an uncommon complication of cerebral angiography. (elsevier.com)
- Cerebral vasospasm (CVS) is a common complication of aneurysmal subarachnoid hemorrhage (aSAH), and is strongly associated with delayed cerebral ischemia (DCI). (heart.org)
- Transient global amnesia is now considered a very rare complication of cerebral angiography. (ovid.com)
Underwent2
- Methods We retrospectively reviewed 168 patients who underwent cerebral angiography with a diagnosis of IE or infected left ventricular assist device at the Cleveland Clinic between January 2003 and March 2010 in accordance with institutional review board guidelines. (bmj.com)
- Methods: Radiation dose received at left outer canthus (LOC) and left eyelid (LE) were measured using Metal-Oxide-Semiconductor Field-Effect Transistor dosimeters on 35 pa- tients who underwent diagnostic or cerebral embolization procedures. (edu.au)
Angiographic2
- METHODS One thousand consecutive cerebral angiographic procedures were evaluated prospectively. (ajnr.org)
- 7,8 Moreover, silent cerebral embolism has also been shown in extracranial angiographic procedures. (ahajournals.org)
Arteriography2
- Also called cerebral arteriography . (oup.com)
- Arteriography is a type of angiography that involves the study of the arteries. (encyclopedia.com)
Stroke3
- Angiography can be used to help detect and diagnose acute stroke. (memorialcare.org)
- A CT protocol in the diagnostic work-up of ischaemic stroke usually includes a non-contrast-enhanced CT (NCCT), head and neck CT angiography (CTA) and cerebral CT perfusion (CTP). (springer.com)
- The older you are, the greater the risk for a TIA or a stroke after a cerebral angiography. (vidanthealth.com)
Contrast6
- Speckle contrast based optical coherence angiography (OCA) and optical coherence Doppler tomography (ODT) have been applied to image cerebral blood flow previously. (osapublishing.org)
- Suspected mechanisms of seizure were a cerebral blood flow change induced by BTO and neurotoxicity of accumulated contrast medium. (scirp.org)
- To investigate the feasibility of low-concentration contrast media (LC-CM) in cerebral and cervical dual-energy CT angiography (DE-CTA) using an advanced monoenergetic (Mono+) reconstruction technique. (springer.com)
- Sixty-five consecutive patients prospectively selected to undergo cerebral and cervical DE-CTA were randomised into two groups: 32 patients (63.7 ± 9.7 years) in the high-concentration contrast medium (HC-CM) group with iopromide 370 and 33 patients (60.7 ± 10.8 years) in the low-concentration contrast medium (LC-CM) group with iodixanol 270. (springer.com)
- This requires a second injection of contrast material, additional examination time and may result in additional radiation exposure if the scan range overlaps with the cerebral CTP. (springer.com)
- Patients with kidney disease or injury may suffer further kidney damage from the contrast mediums used for angiography. (encyclopedia.com)
Venous4
- Our aim was to compare CE MRV, 2D time-of-flight (TOF) MRV and MP-RAGE sequences at 3 T for visualization of cerebral venous and sinus thrombosis. (em-consulte.com)
- Patients with suspected or known cerebral venous thrombosis were examined prospectively by TOF MRV, CE MRV and MP-RAGE sequences. (em-consulte.com)
- CE MRV was superior to TOF MRV and MP-RAGE sequences in visualizing cerebral venous and sinus thrombosis. (em-consulte.com)
- arteriovenous fistula MR angiography, and especially Gd-enhanced 3D MRA, has recently emerged and offers excellent visualization of venous morphology from multiple orientations. (ineas.org)
Anatomy1
- In this third edition, every chapter has been thoroughly revised and enlarged to reflect new knowledge and Cerebral Angiography : Normal Anatomy and Variations in Adults and Children By JOHN R. BENTSON, M.D., AND GABRIEL H. WILSON, M.D. Cerebral Angiography. (teknotasarim.com)
Blood flow2
- Intraoperative Fluorescence Cerebral Angiography by Laser Surgical Microscopy: Comparison With Xenon Microscopy and Simultaneous Observation of Cerebral Blood Flow and Surrounding Structures. (bioportfolio.com)
- Pediatric Moyamoya Disease: Perioperative Cerebral Blood Flow and MR Angiography Studies. (jkns.or.kr)
Assessment2
- This use of angiography as an indirect assessment tool is nowadays obsolete as modern non-invasive diagnostic methods are available to image many kinds of primary intracranial abnormalities directly. (wikipedia.org)
- Few clinical investigations have been performed that evaluate the efficacy of computed tomographic angiography (CTA) in the assessment of extracranial-intracranial bypass. (elsevier.com)
Endovascular3
- In recent decades, cerebral angiography has so assumed a therapeutic connotation thanks to the elaboration of endovascular therapeutic techniques. (wikipedia.org)
- While the emphasis throughout is on the diagnostic value of cerebral angiography, many examples of endovascular treatment in different pathological situations are also presented, with discussion of indications, risks and results. (springer.com)
- In addition, angiography is required as a precursor to endovascular treatments. (medscape.com)
Clinical1
- Aim of this clinical study is to establish a novel technique, the so called intraoperative fluorescence angiography, for kidney graft perfusion visualization during the transplant procedur. (bioportfolio.com)
Injection1
- CT angiography (CTA) combines a CT scan with the injection of dye. (stlukes-stl.com)
Rotational angiography2
- The aim of this study was to assess the diagnostic performance of 64-section MD-CTA in the detection and characterization of anatomical variations of the ACAC compared with three-dimensional rotational angiography (3DRA). (inserm.fr)
- Eight (72.7%) of the 11 patients experienced rebleeding during three-dimensional rotational angiography (3DRA). (bvsalud.org)
Conventional angiography1
- In conclusion, it may be stated that although definitive diagnosis requires further improvement in the delineation of fine vasculature, MRA promises to become a useful alternative to conventional angiography in the diagnosis and postoperative evaluation of MMD. (jkns.or.kr)
Intraoperative angiography1
- Complete AVM obliteration was demonstrated on intraoperative angiography in all cases. (nih.gov)
Invasive1
- Embolization (a minimally invasive surgical technique) over time has played an increasingly significant role in the multimodal treatment of cerebral MAVs, facilitating subsequent microsurgical or radiosurgical treatment. (wikipedia.org)
Preoperative3
- A 77-year-old woman with severe valvular aortic stenosis was admitted to our catheterization laboratory for a preoperative coronary angiography. (ahajournals.org)
- We conducted a preoperative angiography and a BTO of the right ICA to evaluate collateral flows. (scirp.org)
- Preoperative determination of cerebral localization helps surgeons to plan the extent of surgery and to avoid creation of postoperative language deficits in the patient. (cancerstreatment.com)
Diagnosis of cerebral1
- The Mono+ reconstruction technique could reduce the concentration of iodinated CM in the diagnosis of cerebral and cervical angiography. (springer.com)
Complications4
- Lastly, the most common complications of cerebral angiography are detailed. (springer.com)
- Neurologic complications of cerebral angiography. (ajnr.org)
- PURPOSE To examine the incidence of neurologic complications associated with modern cerebral angiography and to assess patient characteristics associated with an increased risk of complications. (ajnr.org)
- RESULTS There were a total of 10 neurologic complications within 24 hours of angiography, 5 of which were persistent. (ajnr.org)
Interventional Neuroradiology2
- The video describes diagnostic cerebral angiography as performed in Interventional Neuroradiology . (wn.com)
- A video developed by the Johns Hopkins Division of Interventional Neuroradiology to describe diagnostic cerebral angiography for patients. (neuromedica.com)
Incidence1
- CONCLUSION Cerebral angiography was associated with a 1% overall incidence of neurologic deficit and a 0.5% incidence of persistent deficit. (ajnr.org)
Radiologists1
- We advocate use of the mechanical injector by radiologists who perform regular angiography to reduce their exposure to radiation. (openrepository.com)
Findings1
- In addition, cerebral angiography allows certain treatments to be performed immediately, based on its findings. (wikipedia.org)