Coronary Angiography
Magnetic Resonance Angiography
Cerebral 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.
Fluorescein Angiography
Tomography, X-Ray Computed
Radionuclide 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)
Sensitivity and Specificity
Coronary Artery Disease
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.
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.
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.
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.
Iopamidol
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.
Carotid Artery, Internal
Multidetector Computed Tomography
Vertebral Artery
Prospective Studies
Coronary Disease
Iohexol
Stents
Radiographic Image Interpretation, Computer-Assisted
Arterial Occlusive Diseases
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.
Aneurysm, Ruptured
Treatment Outcome
Image Processing, Computer-Assisted
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.
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.
Indocyanine Green
Constriction, Pathologic
Central Nervous System Vascular Malformations
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.
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).
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)
Radiographic Image Enhancement
Follow-Up Studies
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.
Ultrasonography, Interventional
Angioplasty, Balloon, Coronary
Myocardial Infarction
Fundus Oculi
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.
Feasibility Studies
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.
Severity of Illness Index
Carotid Artery Diseases
Collateral Circulation
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.
Magnetic Resonance Imaging
Angina Pectoris
Aortography
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).
Cardiac Catheterization
Gadolinium DTPA
Ultrasonography, Doppler, Duplex
Image Enhancement
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.
Carotid Arteries
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.
Blood Flow Velocity
Myocardial Perfusion Imaging
Basilar Artery
Fractional Flow Reserve, Myocardial
Cerebral Arterial Diseases
Myocardial Revascularization
Cardiac-Gated Imaging Techniques
Coronary Vessel Anomalies
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.
Aneurysm
Risk Factors
Celiac Artery
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).
Cerebrovascular Disorders
Extravasation of Diagnostic and Therapeutic Materials
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.
Coronary Artery Bypass
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.
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.
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.
Coronary Aneurysm
Gadolinium
Renal Artery Obstruction
Radial Artery
Iliac Artery
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).
Image Interpretation, Computer-Assisted
Coronary Restenosis
Exercise Test
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)
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).
Choroid
Angioplasty, Balloon
Anterior Cerebral Artery
Choroidal Neovascularization
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).
Phlebography
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)
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.
Gated Blood-Pool Imaging
Radionuclide ventriculography where scintigraphic data is acquired during repeated cardiac cycles at specific times in the cycle, using an electrocardiographic synchronizer or gating device. Analysis of right ventricular function is difficult with this technique; that is best evaluated by first-pass ventriculography (VENTRICULOGRAPHY, FIRST-PASS).
Echocardiography
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)
Endarterectomy
Cavernous Sinus
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.
Catheterization
Surgical Instruments
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.
Myocardial Ischemia
A disorder of cardiac function caused by insufficient blood flow to the muscle tissue of the heart. The decreased blood flow may be due to narrowing of the coronary arteries (CORONARY ARTERY DISEASE), to obstruction by a thrombus (CORONARY THROMBOSIS), or less commonly, to diffuse narrowing of arterioles and other small vessels within the heart. Severe interruption of the blood supply to the myocardial tissue may result in necrosis of cardiac muscle (MYOCARDIAL INFARCTION).
Thrombolytic Therapy
Posterior Cerebral Artery
Carotid Artery, External
Prognosis
Postoperative Complications
Risk Assessment
Radiology, Interventional
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.
Rupture, Spontaneous
Peripheral Vascular Diseases
Hematoma
ROC Curve
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.
Pulmonary Artery
Hepatic Artery
Brain Ischemia
Ultrasonography
Basal Ganglia Cerebrovascular Disease
A pathological condition caused by impaired blood flow in the basal regions of cerebral hemispheres (BASAL GANGLIA), such as INFARCTION; HEMORRHAGE; or ISCHEMIA in vessels of this brain region including the lateral lenticulostriate arteries. Primary clinical manifestations include involuntary movements (DYSKINESIAS) and muscle weakness (HEMIPARESIS).
Tomography, Optical Coherence
Myocardial Bridging
Endarterectomy, Carotid
Ischemia
Blood Vessel Prosthesis Implantation
Choroid Diseases
Meglumine
Cerebral Hemorrhage
Coronary Occlusion
Subclavian Artery
Acute Coronary Syndrome
Takayasu Arteritis
A chronic inflammatory process that affects the AORTA and its primary branches, such as the brachiocephalic artery (BRACHIOCEPHALIC TRUNK) and CAROTID ARTERIES. It results in progressive arterial stenosis, occlusion, and aneurysm formation. The pulse in the arm is hard to detect. Patients with aortitis syndrome often exhibit retinopathy.
Aorta, Abdominal
Vascular Malformations
A spectrum of congenital, inherited, or acquired abnormalities in BLOOD VESSELS that can adversely affect the normal blood flow in ARTERIES or VEINS. Most are congenital defects such as abnormal communications between blood vessels (fistula), shunting of arterial blood directly into veins bypassing the CAPILLARIES (arteriovenous malformations), formation of large dilated blood blood-filled vessels (cavernous angioma), and swollen capillaries (capillary telangiectases). In rare cases, vascular malformations can result from trauma or diseases.
Diagnostic Imaging
Percutaneous Coronary Intervention
A family of percutaneous techniques that are used to manage CORONARY OCCLUSION, including standard balloon angioplasty (PERCUTANEOUS TRANSLUMINAL CORONARY ANGIOPLASTY), the placement of intracoronary STENTS, and atheroablative technologies (e.g., ATHERECTOMY; ENDARTERECTOMY; THROMBECTOMY; PERCUTANEOUS TRANSLUMINAL LASER ANGIOPLASTY). PTCA was the dominant form of PCI, before the widespread use of stenting.
Technetium Tc 99m Sestamibi
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.
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)
Fibromuscular Dysplasia
An idiopathic, segmental, nonatheromatous disease of the musculature of arterial walls, leading to STENOSIS of small and medium-sized arteries. There is true proliferation of SMOOTH MUSCLE CELLS and fibrous tissue. Fibromuscular dysplasia lesions are smooth stenosis and occur most often in the renal and carotid arteries. They may also occur in other peripheral arteries of the extremity.
Blood Vessel Prosthesis
Mesenteric Artery, Superior
A large vessel supplying the whole length of the small intestine except the superior part of the duodenum. It also supplies the cecum and the ascending part of the colon and about half the transverse part of the colon. It arises from the anterior surface of the aorta below the celiac artery at the level of the first lumbar vertebra.
Dura Mater
Phantoms, Imaging
Devices or objects in various imaging techniques used to visualize or enhance visualization by simulating conditions encountered in the procedure. Phantoms are used very often in procedures employing or measuring x-irradiation or radioactive material to evaluate performance. Phantoms often have properties similar to human tissue. Water demonstrates absorbing properties similar to normal tissue, hence water-filled phantoms are used to map radiation levels. Phantoms are used also as teaching aids to simulate real conditions with x-ray or ultrasonic machines. (From Iturralde, Dictionary and Handbook of Nuclear Medicine and Clinical Imaging, 1990)
Incidental Findings
Unanticipated information discovered in the course of testing or medical care. Used in discussions of information that may have social or psychological consequences, such as when it is learned that a child's biological father is someone other than the putative father, or that a person tested for one disease or disorder has, or is at risk for, something else.
Chi-Square Distribution
A distribution in which a variable is distributed like the sum of the squares of any given independent random variable, each of which has a normal distribution with mean of zero and variance of one. The chi-square test is a statistical test based on comparison of a test statistic to a chi-square distribution. The oldest of these tests are used to detect whether two or more population distributions differ from one another.
Thallium Radioisotopes
Intracranial Thrombosis
Perfusion Imaging
Patient Selection
Intracranial Embolism and Thrombosis
Vascular Diseases
Organometallic Compounds
Gastrointestinal Hemorrhage
Cardiology Service, Hospital
Coloring Agents
Angioplasty
Reconstruction or repair of a blood vessel, which includes the widening of a pathological narrowing of an artery or vein by the removal of atheromatous plaque material and/or the endothelial lining as well, or by dilatation (BALLOON ANGIOPLASTY) to compress an ATHEROMA. Except for ENDARTERECTOMY, usually these procedures are performed via catheterization as minimally invasive ENDOVASCULAR PROCEDURES.
Coronary Thrombosis
Using vascular structure for CT-SPECT registration in the pelvis. (1/2636)
The authors outline a method for three-dimensional registration of pelvic CT and 111In-labeled monoclonal antibody capromab pendetide (111In MoAb 7E11.C5) images using 99mTc-labeled red blood cell SPECT data. METHODS: This method of CT-SPECT registration relies on the identification of major blood vessels in the CT and 99mTc SPECT images. The vessels are segmented from the image datasets by outlining them on transverse planar slices using a mouse-based drawing tool. Stacking the transverse outlines provides a three-dimensional representation of the vascular structures. Registration is performed by matching the surfaces of the segmented volumes. Dual isotope acquisition of 111In and 99mTc activities provides precise SPECT-SPECT registration so that registration in three dimensions of the 111In MoAb and CT images is achieved by applying the same transformation obtained from the 99mTc SPECT-CT registration. RESULTS: This method provided accurate registration of pelvic structures and significantly improved interpretation of 111In MoAb 7E11.C5 exams. Furthermore, sites of involvement by prostate cancer suggested by the 111In MoAb examination could be interpreted with the bony and soft tissue (nodal) anatomy seen on CT. CONCLUSION: This method is a general clinical tool for the registration of pelvic CT and SPECT imaging data. There are immediate applications in conformal radiation therapy treatment planning for certain prostate cancer patients. (+info)Disease pattern in cranial and large-vessel giant cell arteritis. (2/2636)
OBJECTIVE: To identify variables that distinguish large-vessel giant cell arteritis (GCA) with subclavian/axillary/brachial artery involvement from cranial GCA. METHODS: Seventy-four case patients with subclavian/axillary GCA diagnosed by angiography and 74 control patients with temporal artery biopsy-proven GCA without large vessel involvement matched for the date of first diagnosis were identified. Pertinent initial symptoms, time delay until diagnosis, and clinical symptoms, as well as clinical and laboratory findings at the time of diagnosis, were recorded by retrospective chart review. Expression of cytokine messenger RNA in temporal artery tissue from patients with large-vessel and cranial GCA was determined by semiquantitative polymerase chain reaction analysis. Distribution of disease-associated HLA-DRB1 alleles in patients with aortic arch syndrome and cranial GCA was assessed. RESULTS: The clinical presentation distinguished patients with large-vessel GCA from those with classic cranial GCA. Upper extremity vascular insufficiency dominated the clinical presentation of patients with large-vessel GCA, whereas symptoms related to impaired cranial blood flow were infrequent. Temporal artery biopsy findings were negative in 42% of patients with large-vessel GCA. Polymyalgia rheumatica occurred with similar frequency in both patient groups. Large-vessel GCA was associated with higher concentrations of interleukin-2 gene transcripts in arterial tissue and overrepresentation of the HLA-DRB1*0404 allele, indicating differences in pathogenetic mechanisms. CONCLUSION: GCA is not a single entity but includes several variants of disease. Large-vessel GCA produces a distinct spectrum of clinical manifestations and often occurs without involvement of the cranial arteries. Large-vessel GCA requires a different approach to the diagnosis and probably also to treatment. (+info)3D angiography. Clinical interest. First applications in interventional neuroradiology. (3/2636)
3D angiography is a true technical revolution that allows improvement in the quality and safety of diagnostic and endovascular treatment procedures. 3D angiography images are obtained by reconstruction of a rotational angiography acquisition done on a C-arm (GE Medical Systems) spinning at 40 degrees per second. The carotid or vertebral selective injection of a total of 15 ml of non-ionic contrast media at 3 ml/sec over 5 seconds allows the selection of the "arterial phase". Four hundred sixty 3D angiographic studies were performed from December 1996 to September 1998 on 260 patients and have been analyzed in MIP (Maximum Intensity Projection) and SSD (Shaded Surface Display) views. The exploration of intracranial aneurysms is simplified and only requires, for each vascular axis, a biplane PA and Lateral run followed by a single rotational angiography run. The 3D angiography image is available on the workstation's screen (Advantage Workstation 3.1, GE Medical Systems) in less than 10 minutes after the acquisition of the rotational run. It therefore allows one to analyze, during the intervention, the aneurysm's angioarchitecture, in particular the neck, and select the best therapeutic technique. When endovascular treatment is the best indication, 3D angiography allows one to define the optimal angle of view and accurately select the microcoils dimensions. 3D angiography replaces the multiple oblique views that used to be required to analyze the complex aneurysms and therefore allows a reduction of the total contrast medium quantity, the patient X-ray dose and the length of the intervention time which is a safety factor. Also, in particular for complex cases, it brings additional elements complementing the results of standard 2D DSA and rotational angiograms. In the cervical vascular pathology, 3D angiography allows for a better assessment of the stenosis level and of dissection lesions. Our current research activities focus on the matching without stereotactic frame between 3D X-ray angiography and volumetric MR acquisition, which should allow us to improve the treatment of intracerebral arterio-venous malformations (AVMs). (+info)Prevalence of angiographic atherosclerotic renal artery disease and its relationship to the anatomical extent of peripheral vascular atherosclerosis. (4/2636)
BACKGROUND: Recognition of the possible presence of atherosclerotic renal artery disease (ARAD) is important because of its progressive nature, and because of the potential for precipitating an acute deterioration in renal function by administration of angiotensin-converting enzyme inhibitors. The aim of this study was to identify the prevalence of ARAD in patients undergoing peripheral angiography and its relationship to the extent of their peripheral vascular disease (PVD). METHODS: The reports of the 218 patients who underwent peripheral angiography to investigate PVD in one centre in a calendar year, and in whom it was possible to image the renal arteries, were analysed retrospectively. The presence of atherosclerotic disease in the renal, aortic, iliac, femoral and distal areas was recorded for each patient. RESULTS: The prevalence of ARAD was 79/218 (36.2%). The greater the number of atherosclerotic areas of the arterial tree, the higher the prevalence of ARAD. Patients with aortic disease and bilateral iliac, femoral and distal vessel disease had the highest incidence of ARAD 19/38 (50%). The incidence of ARAD in those with femoral artery atherosclerosis was significantly higher than in those without femoral artery atherosclerosis (42.1% compared with 9.7%, P=0.001 chi2). There was no significant difference in those groups with or without iliac and distal disease. None of the 11 patients with normal femoral and iliac arteries had ARAD. CONCLUSIONS: Renal artery atherosclerosis is a common occurrence in patients with PVD. If extensive PVD is recognized during aortography, a high flush should be considered to examine the renal arteries, if they are not included in the main study. (+info)Medullary thyroid carcinoma with multiple hepatic metastases: treatment with transcatheter arterial embolization and percutaneous ethanol injection. (5/2636)
A 54-year-old man with medullary thyroid carcinoma in the thyroid gland was unable to undergo total thyroidectomy because the tumor had invaded the mediastinum. Radiation therapy and chemotherapy were given. Seven years later, intractable diarrhea and abdominal pain appeared, and computed tomography demonstrated hypervascular tumors in the thyroid gland and in the liver. The tumors were successfully treated with percutaneous ethanol injection to a lesion in the thyroid gland and transcatheter arterial embolization followed by percutaneous ethanol injection to tumors in the liver. Transcatheter arterial embolization and percutaneous ethanol injection may be valuable in treating medullary thyroid carcinoma. (+info)Late massive haemoptyses from bronchopulmonary collaterals in infarcted segments following pulmonary embolism. (6/2636)
Massive, recurrent haemoptyses requiring blood transfusions occurred in a patient who had been diagnosed as having pulmonary thromboembolism 3 months earlier. To the authors' knowledge this is the first case report of this kind, in which massive haemoptyses were proved to be caused by large bronchopulmonary collaterals that had developed in the infarcted lung segments affected by embolism. Selective embolization of the collaterals proved to be therapeutic and life saving. (+info)Plaque area increase and vascular remodeling contribute to lumen area change after percutaneous transluminal angioplasty of the femoropopliteal artery: an intravascular ultrasound study. (7/2636)
OBJECTIVE: The aim of the study was to assess the change in lumen area (LA), plaque area (PLA), and vessel area (VA) after percutaneous transluminal angioplasty (PTA) of the femoropopliteal artery. METHODS: This was a prospective study. Twenty patients were studied with intravascular ultrasound (IVUS) immediately after PTA and at follow-up examination. Multiple corresponding IVUS cross-sections were analyzed at the segments that were dilated by PTA (ie, treated sites; n = 168), including the most stenotic site (n = 20) and the nondilated segments (ie, reference sites; n = 77). RESULTS: At follow-up examination, both the PLA increase (13%) and the VA decrease (9%) resulted in a significant LA decrease (43%) at the most stenotic sites (P =.001). At the treated sites, the LA decrease (15%) was smaller and was caused by the PLA increase (15%). At the reference sites, the PLA increase (15%) and the VA increase (6%) resulted in a slight LA decrease (3%). An analysis of the IVUS cross-sections that were grouped according to LA change (difference >/=10%) revealed a similar PLA increase in all the groups: the type of vascular remodeling (VA decrease, no change, or increase) determined the LA change. At the treated sites, the LA change and the VA change correlated closely (r = 0.77, P <.001). At the treated sites, significantly more PLA increase was seen in the IVUS cross-sections that showed hard lesion or media rupture (P <.05). No relationship was found between the presence of dissection and the quantitative changes. CONCLUSION: At the most stenotic sites, lumen narrowing was caused by plaque increase and vessel shrinkage. Both the treated sites and the reference sites showed a significant PLA increase: the type of vascular remodeling determined the LA change at follow-up examination. The extent of the PLA increase was significantly larger in the IVUS cross-sections that showed hard lesion or media rupture. (+info)Immunohistochemical analysis of arterial wall cellular infiltration in Buerger's disease (endarteritis obliterans). (8/2636)
PURPOSE: The diagnosis of Buerger's disease has depended on clinical symptoms and angiographic findings, whereas pathologic findings are considered to be of secondary importance. Arteries from patients with Buerger's tissue were analyzed histologically, including immunophenotyping of the infiltrating cells, to elucidate the nature of Buerger's disease as a vasculitis. METHODS: Thirty-three specimens from nine patients, in whom Buerger's disease was diagnosed on the basis of our clinical and angiographic criteria between 1980 and 1995 at Nagoya University Hospital, were studied. Immunohistochemical studies were performed on paraffin-embedded tissue with a labeled streptoavidin-biotin method. RESULTS: The general architecture of vessel walls was well preserved regardless of the stage of disease, and cell infiltration was observed mainly in the thrombus and the intima. Among infiltrating cells, CD3(+) T cells greatly outnumbered CD20(+) B cells. CD68(+) macrophages or S-100(+) dendritic cells were detected, especially in the intima during acute and subacute stages. All cases except one showed infiltration by the human leukocyte antigen-D region (HLA-DR) antigen-bearing macrophages and dendritic cells in the intima. Immunoglobulins G, A, and M (IgG, IgA, IgM) and complement factors 3d and 4c (C3d, C4c) were deposited along the internal elastic lamina. CONCLUSION: Buerger's disease is strictly an endarteritis that is introduced by T-cell mediated cellular immunity and by B-cell mediated humoral immunity associated with activation of macrophages or dendritic cells in the intima. (+info)
Mesenteric Angiography - PDF
Marianne R. Tortorici | Open Library
CT Angiography, heart scan, EB Angiography
Difference between angiogram and arteriogram - Doctor answers
Diagnostic angiography in tumours of the neck<...
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US5266302A - Method of performing angiography
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Angiography Injectors Market Size, Share, Analysis, Industry Demand and Forecasts Report to 2025 - Webnewswire
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Arteriogram<...
Does having an angiography break the fast? | Ramadan Pages
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Angiography
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Enhancement Characteristics of the Computed Tomography Pulmonary Angiography Test Bolus Curve and Its Use in Predicting Right...
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Angiography - Wikipedia
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Transradial Access: Techniques for Diagnostic Angiography and Percutaneous Intervention 1st edition | 9781935395416 |...
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Angiography facts, information, pictures | Encyclopedia.com articles about Angiography
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Radiography
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] ... Contrast agents are required in conventional angiography, and can be used in both projectional radiography and computed ...
CT scan
Main article: Computed tomography angiography. Computed tomography angiography (CTA) is contrast CT to visualize arterial and ... Angiography[edit]. Example of a CTPA, demonstrating a saddle embolus (dark horizontal line) occluding the pulmonary arteries ( ... Coronary CT angiography (CTA): the use of CT to assess the coronary arteries of the heart. The subject receives an intravenous ... CT angiography avoids the invasive insertion of a catheter. CT colonography (also known as virtual colonoscopy or VC for short ...
Subarachnoid hemorrhage
... and CT angiography (visualizing blood vessels with radiocontrast on a CT scan) to identify aneurysms. Catheter angiography also ... Angiography[edit]. After a subarachnoid hemorrhage is confirmed, its origin needs to be determined. If the bleeding is likely ... Aneurysms of the middle cerebral artery and its related vessels are hard to reach with angiography and tend to be amenable to ... If a cerebral aneurysm is identified on angiography, two measures are available to reduce the risk of further bleeding from the ...
Heart failure
Angiography[edit]. Angiography is the X-ray imaging of blood vessels which is done by injecting contrast agents into the ... "Angiography - Consumer Information - InsideRadiology". InsideRadiology. 23 September 2016. Archived from the original on 22 ...
Mesenteric ischemia
Angiography[edit]. As the cause of the ischemia can be due to embolic or thrombotic occlusion of the mesenteric vessels or ... Geoffrey D. Rubin (2012). CT and MR Angiography: Comprehensive Vascular Assessment. Lippincott Williams & Wilkins. p. 318. ISBN ... Though it has serious risks, angiography provides the possibility of direct infusion of vasodilators in the setting of ... The best method of diagnosis is angiography, with computer tomography (CT) being used when that is not available.[1] ...
Angioscopy
Angiography. *Digital subtraction angiography *Cerebral angiography. *Aortography. *Fluorescein angiography. *Radionuclide ...
Hemofiltration
Angiography. *Digital subtraction angiography *Cerebral angiography. *Aortography. *Fluorescein angiography. *Radionuclide ...
Anatomy
"Magnetic Resonance Angiography (MRA)". Johns Hopkins Medicine.. *^ "Angiography". National Health Service. Retrieved 29 April ... Angiography using X-rays or magnetic resonance angiography are methods to visualize blood vessels.[8][9][10][11] ... Gribble N, Reynolds K (1993). "Use of Angiography to Outline the Cardiovascular Anatomy of the Sand Crab Portunus pelagicus ...
Glenn procedure
Angiography. *Digital subtraction angiography *Cerebral angiography. *Aortography. *Fluorescein angiography. *Radionuclide ...
Ankle-brachial pressure index
Society for Cardiovascular Angiography and, Interventions; Society of Interventional, Radiology; Society for Vascular, Medicine ...
Inferior vena cava filter
Angiography. *Digital subtraction angiography *Cerebral angiography. *Aortography. *Fluorescein angiography. *Radionuclide ...
Blalock-Taussig shunt
Angiography. *Digital subtraction angiography *Cerebral angiography. *Aortography. *Fluorescein angiography. *Radionuclide ...
Angioplasty
Angiography. *Digital subtraction angiography *Cerebral angiography. *Aortography. *Fluorescein angiography. *Radionuclide ...
Impedance phlebography
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 ...
Coronary artery disease
"Coronary Angiography". National Heart, Blood, and Lung Institute. Retrieved 10 December 2017.. ... The Stockholm Female Coronary Angiography Study". J. Intern. Med. 261 (3): 245-54. doi:10.1111/j.1365-2796.2006.01759.x. PMID ... Electrocardiogram, cardiac stress test, coronary computed tomographic angiography, coronary angiogram[8]. Prevention. Healthy ... stress testing or angiography may be used to identify and treat coronary artery disease in patients who have had an NSTEMI or ...
Cardiac imaging
Computed tomography angiography (CTA), an imaging methodology using a ring-shaped machine with an X-Ray source spinning around ... Coronary angiography is used to determine the patency and configuration of the coronary artery lumens. ... "Assessment of Agatston Coronary Artery Calcium Score Using Contrast-Enhanced CT Coronary Angiography". American Journal of ...
Iodinated contrast
... especially when given via the arteries prior to studies such as catheter coronary angiography. Non-ionic contrast agents, which ...
Coronary ischemia
A coronary angiography is performed after a stress test or EKG shows abnormal results. This test is very important in finding ... Coronary angiography should only be performed if a patient is a willing to undergo a coronary revascularization procedure. ... "Coronary Angiography , NHLBI, NIH". www.nhlbi.nih.gov. Retrieved 2020-11-25. Pyxaras, Stylianos A.; Wijns, William; Reiber, ... The most common tests used are an electrocardiogram, an exercise stress test, and a coronary angiography. A medical history ...
CT scan
Computed tomography angiography (CTA) is a type of contrast CT to visualize the arteries and veins throughout the body. This ... For example, CT angiography avoids the invasive insertion of a catheter. CT scanning can perform a virtual colonoscopy with ... The main forms of cardiac CT scanning are: Coronary CT angiography (CCTA): the use of CT to assess the coronary arteries of the ... "Coronary Computed Tomography Angiography (CCTA)". www.radiologyinfo.org. Retrieved 2021-03-19. "Heart scan (coronary calcium ...
Paradoxical embolism
CT angiography; bubble echocardiography may also be used to detect a patent foramen ovale. Therapeutic preventional ...
Presumed ocular histoplasmosis syndrome
Stefan Dithmar; Frank Gerhard Holz (28 April 2008). Fluorescence Angiography in Ophthalmology. Springer. pp. 168-. ISBN 978-3- ... Fluorescein angiography is usually performed for diagnosis and follow-up of patients with POHS. ...
Meningohypophyseal artery
Diagnostic cerebral angiography. Philadelphia: Lippincott Willims & Wilkins. pp. 84-87. ISBN 0-397-58404-0. v t e. ...
Fundus photography
Red free photography is also regularly used as a base line photo prior to Angiography. Angiography is a process of ... Sodium Fluorescein Angiography (abbreviated SFA, FA or FAG) is used for the imaging of retinal vascular disease and utilises ... Indocyanine Green Angiography (abbreviated ICG) is used primarily for imaging deeper choroidal diseases and utilises near- ... Following the development of fundus photography, David Alvis, and Harold Novotny, performed the first fluorescein angiography ( ...
Kinetic imaging
"Digital Variance Angiography as a Paradigm Shift in Carbon Dioxide Angiography". Investigative Radiology. 54 (7): 428-436. doi: ... Digital variance angiography X-ray imaging Fluoroscopy Signal-to-noise ratio Szigeti, K.; Máthé, D.; Osváth, S. (2014-10-01). " ... Their findings indicate that by using the kinetic imaging (or as they called this method in the case of angiographies, digital ... See also: Digital variance angiography The diagnostic value of radiographic images is limited by image quality, which can be ...
Royal Prince Alfred Hospital
... and angiography rooms. Institute of Rheumatology and Orthopaedics - 60 bed unit covering diagnosis; orthopaedic theatre suite; ...
DICOM - Wikipédia, a enciclopédia livre
DS = Digital Subtraction Angiography. *DR = Digital Radiography. *EC = Echocardiography. *ES = Endoscopy. *FA = Fluorescein ...
Fluorescein
Jennings BJ, Mathews DE (1994). "Adverse reactions during retinal fluorescein angiography". J Am Optom Assoc. 65 (7): 465-71. ... Kinsella FP, Mooney DJ (1988). "Anaphylaxis following oral fluorescein angiography". Am. J. Ophthalmol. 106 (6): 745-6. doi: ... Fineschi V, Monasterolo G, Rosi R, Turillazzi E (1999). "Fatal anaphylactic shock during a fluorescein angiography". Forensic ... Yang CS, Sung CS, Lee FL, Hsu WM (2007). "Management of anaphylactic shock during intravenous fluorescein angiography at an ...
Internal carotid artery
386-393 [1] Osborn, Anne (1999). Diagnostic Cerebral Angiography (2nd ed.). Philadelphia, PA, USA: Lippincott Williams & ...
Time of flight
For magnetic resonance angiography (MRA), ToF is a major underlying method. In this method, blood entering the imaged area is ... "Magnetic Resonance Angiography (MRA)". Johns Hopkins Hospital. Retrieved 2017-10-15. Cotter, Robert J. (1994). Time-of-flight ...
Angiography - NHS
Angiography is a type of X-ray used to examine the blood vessels. Find out why its used, what it involves and what the ... coronary angiography - to check the heart and nearby blood vessels *cerebral angiography - to check the blood vessels in and ... Read more about what happens before, during and after angiography.. Risks of an angiogram. Angiography is generally a safe and ... renal angiography - to check the blood vessels supplying the kidneys Occasionally angiography may be carried out using scans ...
Neurovascular Angiography | SpringerLink
... cerebral angiography was one of the most common diagnostic procedures in diagnostic radiology. With the advent of CT and MRI in ... The maturing of CT and MRI with the widespread use of MR and CT angiography has further encroached on the use of angiography in ... Vertebral Artery Cerebral Angiography Common Femoral Artery Cerebral Angiogram Femoral Artery Puncture These keywords were ... Before the widespread use of cross-sectional imaging, cerebral angiography was one of the most common diagnostic procedures in ...
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 ... Vertebral Artery Radial Artery Brachial Artery Intracranial Aneurysm Cerebral Angiography These keywords were added by machine ...
Angiography
... is a test that uses an injection of a liquid dye to make the arteries easily visible on X-rays. Find out when it is ... What is angiography?. Angiography is a test that uses an injection of a liquid dye to make the arteries easily visible on X- ... Angiography. Angiography is a test that uses an injection of a liquid dye to make the arteries easily visible on X-rays. Find ... There is a small risk of angiography damaging blood vessels because it passes them. So, in heart (coronary) angiography, it is ...
Coronary Angiography | Encyclopedia.com
... coronary Coronary angiography is an X-ray of the heart and blood vessels of a living patient. The X-ray is taken with a moving ... Angiography, Coronary Medical Discoveries COPYRIGHT 1997 Thomson Gale. Angiography, coronary. Coronary angiography is an X-ray ... coronary angiography (ko-rŏn-er-i) n. see angiography. Cite this article Pick a style below, and copy the text for your ... coronary angiography A Dictionary of Nursing © A Dictionary of Nursing 2008, originally published by Oxford University Press ...
FLUORESCEIN ANGIOGRAPHY
Extremity angiography: MedlinePlus Medical Encyclopedia
Extremity angiography is a test used to see the arteries in the hands, arms, feet, or legs. It is also called peripheral ... It is also called peripheral angiography. Angiography uses x-rays and a special dye to see inside the arteries. Arteries are ... Angiography of the extremity; Peripheral angiography; Lower extremity angiogram; Peripheral angiogram; Arteriography of the ... Peripheral angiography. www.heart.org/en/health-topics/peripheral-artery-disease/symptoms-and-diagnosis-of-pad/peripheral- ...
Aortic angiography: MedlinePlus Medical Encyclopedia
Aortic angiography is a procedure that uses a special dye and x-rays to see how blood flows through the aorta. The aorta is the ... Aortic angiography has been mostly replaced by computed tomography (CT) angiography or magnetic resonance (MR) angiography. ... Aortic angiography is a procedure that uses a special dye and x-rays to see how blood flows through the aorta. The aorta is the ... Angiography uses x-rays and a special dye to see inside the arteries. Arteries are blood vessels that carry blood away from the ...
Angiogram: Magnetic Resonance Angiography Test (MRA)
Magnetic Resonance Angiography (MRA) is a test that provides images of your blood vessels. Find out when your doctor might ... Radiologyinfo.org: "MR Angiography (MRA).". Society for Vascular Surgery: "Computed Tomography Angiography (CTA) and Magnetic ... MRA stands for Magnetic Resonance Angiogram or MR Angiography.. Your doctor may ask you to get one in order to look for and ...
Patent US5480392 - Angiography catheter - Google Patents
The angiography catheter can be of the so-called pigtail type, with a circular curvature through substantially 360 , wherein ... The invention relates to an angiography catheter comprising a hose-like body with at least one lumen debouching at the distal ... In all angiography catheters with a curved end, openings can be arranged according to the invention in the wall of the ... 4. The angiography catheter as claimed in 2, wherein said openings arranged in the curvature of said distal end portion are ...
Interventional X-ray Coronary Angiography | SpringerLink
Interventional X-ray coronary angiography is a primary tool to guide catheter-based coronary interventions. High-quality images ... Committee on Coronary Angiography). Developed in collaboration with the Society for Cardiac Angiography and Interventions. J Am ... ACC/AHA guidelines for coronary angiography. A report of the American College of Cardiology/American Heart Association Task ... Interventional X-ray coronary angiography is a primary tool to guide catheter-based coronary interventions. High-quality images ...
Cardiac catheterisation and coronary angiography
- NHS
After coronary angiography. Youll usually be able to leave hospital on the same day you have a coronary angiography, after a ... Find out why coronary angiography is used. What happens during coronary angiography?. During the procedure a long, thin, ... Why do I need coronary angiography?. Coronary angiography can be used to help diagnose heart conditions, help plan future ... Coronary angiography is also considered to be the best method of diagnosing coronary heart disease, where a build-up of fatty ...
Angiography - Canadian Cancer Society
Angiography is a procedure used to create an image of blood vessels, including those of the head, kidneys, heart or lungs. A ... Angiography may also be called arteriography.. Why angiography is done. Angiography may be done to see how the blood flows ... Angiography. Angiography is a procedure used to make pictures of blood vessels, including those of the head, kidneys, heart, ... How catheter-angiography is done. Angiography may be done in the hospital or a specialized medical imaging centre. You usually ...
CT coronary angiography | NICE
CT coronary angiography (CTCA) is a highly effective first-line investigation in those patients assessed to be at low- ... CT coronary angiography (CTCA) outperformed exercise tolerance testing (ETT) for each of the comparative measures described ... We compared two cohorts of patients pre-and post introduction of CT coronary angiography (CTCA) in our hospital presenting with ... NICE guideline 95 proposes using CT coronary angiography (CTCA) in patients at low predicted risk of coronary artery disease ...
RSNA - CT Angiography Helps Predict Heart Attack Risk
PRWEB) February 19, 2013 -- Coronary computed tomography angiography (CCTA) is an effective tool for determining the risk of ... Coronary computed tomography angiography (CCTA) is an effective tool for determining the risk of heart attacks and other ... Coronary computed tomography angiography (CCTA) is an effective tool for determining the risk of heart attacks and other ... They culled the data from the Coronary CT Angiography Evaluation For Clinical Outcomes: An International Multicenter (CONFIRM) ...
Coronary angiography
... is a procedure that uses a special dye (contrast material) and x-rays to see how blood flows through the ... Cardiac angiography; Angiography - heart; Angiogram - coronary; Coronary artery disease - angiography; CAD - angiography; ... Angina - angiography; Heart disease - angiography. How the Test is Performed. Coronary angiography is often done along with ... Coronary angiography is a procedure that uses a special dye (contrast material) and x-rays to see how blood flows through the ...
Patent US4983169 - Catheter for angiography - Google Patentsuche
The present invention relates to a catheter for angiography adapted to be used simultaneously with a catheter introducing guide ... Method of angiography. US5484424 *. 16. Nov. 1993. 16. Jan. 1996. Celsa L.G. (Societe Anonyme). Blood filtering device having a ... DSA (Digital Subtraction Angiography) and other angiographic tests based on computer images are being used for diagnosis of ... 3. A catheter for angiography as set forth in claim 1, wherein the front end portion (10b) of the catheter (10) has a greater ...
CORONARY ANGIOGRAPHY - Heart Disease - MedHelp
angiography | Modern medicine
Angiography within anterior imaging. December 01, 2017By Lisa Stewart. It is important with corneal angiography to remember ... OCT angiography (AngioPlex OCT Angiography) is now available as an upgrade to the CIRRUS 5000 HD-OCT platform (Carl Zeiss ... Angiography debuts as latest upgrade to high-definition OCT platform. October 15, 2015By Cheryl Guttman Krader ... Studying aqueous humour outflow with aqueous angiography. July 10, 2017By Caroline Richards ...
Coronary angiography - Conservapedia
Coronary angiography (an-jee-OG-ra-fee) is a test that uses dye and special x rays to show the inside of your coronary arteries ... Coronary angiography shows if you have CAD. Most of the time, the coronary arteries cant be seen on an x ray. During coronary ... angiography, a special dye is injected into the bloodstream to make the coronary arteries show up on an x ray. ... Retrieved from "http://www.conservapedia.com/index.php?title=Coronary_angiography&oldid=1304469" ...
Coronary Angiography | Circulation
Angiography | Legacy Health
Heart-Encyclopedia - coronary angiography
Left heart ventricular angiography
... is a procedure to look at the left-sided heart chambers and the function of the left-sided ... Left heart ventricular angiography is a procedure to look at the left-sided heart chambers and the function of the left-sided ... Angiography - left heart; Left ventriculography. How the Test is Performed. Before the test, you will be given medicine to help ... Left heart ventricular angiography has some risk because it is an invasive procedure. Other imaging techniques may carry less ...
R&LHC wo/ angiography
did a Right and Left Heart Cath without Angiography and I am not sure what is the correct CPT code to use any help will be ... LHC with subclavian angiography and right iliac angiography. By Jlokloski in forum Medical Coding General Discussion ... R & L Subclavian Angiography with Coronary Angiography. By [email protected] in forum Cardiology ... LHC, angiography, bypass graft angiography and PCI. By jsoupb in forum Cardiology ...
Angiography | Imaging | Legacy Health
Angiography Bone Density DEXA Breast Specific Gamma Imaging Cardiac Angiography Dual Source CT Scanner Image Gently Image ... What is angiography?. Angiography -- also called arteriogram or angiogram -- is an x-ray of blood vessels that have been ... Safety Interventional Radiology Magnetic Resonance Angiography (MRA) Magnetic Resonance Imaging (1.5T and 3T MRI) Multi-slice ...
Coronary Angiography
... Coronary CT Angiography Dobutamine Echocardiogram Doppler Ultrasound Echocardiogram in Congestive Heart ... Angioplasty Aortic Angiography Apical Four Chamber Echocardiogram View Cardiac CT Calcium Scoring Cardiac Imaging Cardiac MRI ... These images are a random sampling from a Bing search on the term "Coronary Angiography." Click on the image (or right click) ... Diastolic Heart Failure Kawasaki Disease Coronary CT Angiography Cardiac Imaging Cancer Risk due to Diagnostic Radiology Post- ...
Coronary Angiography
... we obtained a good agreement in terms of stenosis diagnosis between synchrotron angiography and the usual angiography procedure ... 2 Dill T, Dix WR, Hamm CW, Jung M, Kupper W, Lohman M, Reime B, and Ventura R 1998 Intravenous coronary angiography with ... The commissioning of the human angiography program brings to an end the construction phase of the facility. The x-ray energies ... 8 Ohtsuka S, Sugishita Y, Takeda T, Itai Y, Tada J, and Hyodo K, 1999 Dynamic intravenous coronary angiography using 2D ...
Angiography facts, information, pictures | Encyclopedia.com articles about Angiography
Make research projects and school reports about Angiography easy with credible articles from our FREE, online encyclopedia and ... A variety of common angiography procedures are outlined below:. Cerebral angiography Cerebral angiography is used to detect ... A variety of common angiography procedures are outlined below:. Cerebral angiography. Cerebral angiography is used to detect ... angiography (an-ji-og-răfi) n. imaging of blood vessels. computerized tomographic a. angiography in which a contrast agent, ...
Risks for renal dysfunction with cardiac angiography. - PubMed - NCBI
Digital SubtractionAngiogramOptical Coherence Tomography ASociety for Cardiovascular Angiography and InterventionsCatheterCerebralFluoresceinComputerised tomographyCCTAProcedureArteriesArteriographyInterventionsVascularRenalContrast-enhanced magnetic resonance aPatientsDiagnosisNeed computed tomographyConventional coronary angiographyComplicationsBlockageDiagnosticCathetersRole of angiographyPerform CT angiography2018IntravenousInterventionalOCTASearchSpecial dyeRotational angiographyPeripheralFindingsVesselsRisksTechnologistArteryBloodKidneysInvasive coronaryProceduresTestMDCTCardiac catheterizationAngiograms
Digital Subtraction11
- DSA (Digital Subtraction Angiography) and other angiographic tests based on computer images are being used for diagnosis of vascular and tumorous diseases. (google.de)
- Spinal digital subtraction angiography still holds the position of gold standard for diagnosing spinal cord vessel disease, even though some advances have been made in noninvasive imaging. (medpagetoday.com)
- Digital subtraction angiography, whether based on traditional X-ray or MR, suers from patient motion artifacts. (diva-portal.org)
- Cerebral angiography is also called intra-arterial digital subtraction angiography (IADSA). (radiologyinfo.org)
- A digital subtraction angiography method useful for processing a mask and contrast series of two dimensional (2D) images acquired by rotational imaging of a selected volume of a body. (google.com)
- For all structures except the heart, the images are usually taken using a technique called digital subtraction angiography or DSA. (wikipedia.org)
- Imaging of blood vessels thus important in depiction of stenotic, occlusive, aneurismal, inflammatory or vascular malformations.Conventional x-ray angiography and digital subtraction angiography (DSA) are used to depict vascular lesions with high accuracy via intravascular administration of contrast (dye) material. (medindia.net)
- This is called digital subtraction angiography (DSA). (sutterhealth.org)
- Digital Subtraction Angiography (DSA) is a type of fluoroscopy technique used in interventional radiology to clearly visualize blood vessels in a bony or dense soft tissue environment. (drugs.com)
- Ask a question or go join the digital subtraction angiography support group to connect with others who have similar interests. (drugs.com)
- It uses material from the Wikipedia article "Digital_subtraction_angiography" . (bionity.com)
Angiogram12
- There is also a type of angiography used to check the eyes called a fluorescein angiogram. (www.nhs.uk)
- The history of cerebral angiography is discussed, extending from the first human angiogram in 1927 to the present time. (springer.com)
- So, in heart (coronary) angiography, it is possible that the angiogram can provoke a stroke , heart attack , either of which occasionally lead to death. (netdoctor.co.uk)
- MRA stands for Magnetic Resonance Angiogram or MR Angiography. (webmd.com)
- The side effects of having angiography are related to injecting the dye and depend on the type of angiogram being done. (cancer.ca)
- Angiography -- also called arteriogram or angiogram -- is an x-ray of blood vessels that have been injected with a dye to make the blood flow visible. (legacyhealth.org)
- Also called coronary angiogram, coronary angiography is an X-ray test to diagnose diseases of the arteries that supply blood to the heart. (heart.org)
- Magnetic resonance angiography-also called a magnetic resonance angiogram or MRA-is a type of MRI that looks specifically at the body's blood vessels. (hopkinsmedicine.org)
- Unlike a traditional angiogram, which requires inserting a catheter into the body, magnetic resonance angiography is a far less invasive and less painful test. (hopkinsmedicine.org)
- Radial access technique for angiography can be traced back to 1953, where Eduardo Pereira[clarification needed] first cannulated the radial artery to perform a coronary angiogram. (wikipedia.org)
- Early use of OCT for angiography was clinically impractical, he said, because it required multiple and re-peated scans at each location to build the angiogram. (aao.org)
- An angiography, or angiogram, is an X-ray exam of the arteries and veins used to diagnose problems with the blood vessels, such as a blockage or narrowing. (gwinnettmedicalcenter.org)
Optical Coherence Tomography A3
- To analyze optical coherence tomography angiography (OCTA) findings in eyes with central serous chorioretinopathy (CSC) and to compare them with those obtained with multimodal imaging. (hindawi.com)
- Also known as OCT-A, optical coherence tomography angiography is an imaging technique that uses light waves to measure changes in the reflectance characteristics, enabling the the quantitative analysis of vasculature. (photonics.com)
- To evaluate early macular circulation in open-angle glaucoma (OAG), normal-tension glaucoma (NTG), ocular hypertension (OHT), and healthy subjects via optical coherence tomography angiography (OCTA). (mendeley.com)
Society for Cardiovascular Angiography and Interventions2
- 2014 ACC/AHA/AATS/PCNA/SCAI/STS focused update of the guideline for the diagnosis and management of patients with stable ischemic heart disease: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines, and the American Association for Thoracic Surgery, Preventive Cardiovascular Nurses Association, Society for Cardiovascular Angiography and Interventions, and Society of Thoracic Surgeons. (ucsfhealth.org)
- The Society for Cardiovascular Angiography and Interventions has established the Mullins Lecture, which is the keynote address at the organization's annual scientific sessions. (wikipedia.org)
Catheter18
- The invention relates to an angiography catheter comprising a hose-like body with at least one lumen debouching at the distal end in an end opening, wherein the distal end has a permanent curvature and a number of openings is arranged in the wall. (google.com)
- The angiography catheter can be of the so-called "pigtail" type, with a circular curvature through substantially 360 , wherein openings are arranged in the first 180 of the curvature in the outward facing portion of the wall. (google.com)
- 4. The angiography catheter as claimed in 2, wherein said openings arranged in the curvature of said distal end portion are additional to openings arranged in a known per se manner in said main portion of said tubular body positioned in advance of the curvature. (google.com)
- The invention relates to an angiography catheter comprising a hose-like body with at least one lumen debouching in an end opening at the distal end. (google.com)
- This objective is achieved with an angiography catheter, as characterized in claim 1. (google.com)
- The invention can be applied particularly well with an angiography catheter of the so-called "pigtail" type. (google.com)
- Interventional X-ray coronary angiography is a primary tool to guide catheter-based coronary interventions. (springer.com)
- 2. A catheter for angiography as set forth in claim 1, wherein the boundary position P between the main portion (10a) and the front end portion (10b) is continuous such that the degree of flexibility changes smoothly. (google.de)
- 3. A catheter for angiography as set forth in claim 1, wherein the front end portion (10b) of the catheter (10) has a greater radius of curvature than that of the arcuate front end portion (13b) of the guide wire (13) to be used simultaneously therewith and is plastically deformed in arcuate form for contact with the inner wall surface of the aorta. (google.de)
- 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)
- In patients with internal bleeding, angiography can be used to guide catheter placement to block off the bleeding vessels. (ucsd.edu)
- 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)
- 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)
- So-called CT angiography was developed as an alternative to coronary angiography, which requires doctors to thread a catheter through the blood vessels to check for blockages in patients with signs of heart disease. (foxnews.com)
- Angiography is a medical imaging technique, in which a catheter is threaded through a series of blood vessels, to reach an area of interest. (citizendium.org)
- Angiography with a catheter is used less often now. (sutterhealth.org)
- Rotational angiography is a medical imaging technique based on x-ray, that allows to acquire CT-like 3D volumes during hybrid surgery or during a catheter intervention using a fixed C-Arm. (wikipedia.org)
- For interventional or therapeutic angiography, a small incision is made in the groin or arm so that a catheter can be inserted during the study. (imaginis.com)
Cerebral16
- Before the widespread use of cross-sectional imaging, cerebral angiography was one of the most common diagnostic procedures in diagnostic radiology. (springer.com)
- This chapter covers the essential aspects of diagnostic cerebral angiography. (springer.com)
- Lastly, the most common complications of cerebral angiography are detailed. (springer.com)
- Krayenbühl H (1977) History of cerebral angiography and its development since Egaz Moniz. (springer.com)
- Haughton VM, Rosenbaum AE, Baker RA, Plaistowe RL (1975) Lateral projections with inclined head for angiography of basal cerebral aneurysms. (springer.com)
- Cerebral angiography carries a small but significant risk of a serious adverse outcome. (netdoctor.co.uk)
- Designed for programs in transvenous coronary angiography, cerebral computed tomography (Dilmanian et al. (esrf.eu)
- Cerebral angiography produces very detailed, clear and accurate pictures of blood vessels in the brain and may eliminate the need for surgery. (radiologyinfo.org)
- Play media The technique was first developed in 1927 by the Portuguese physician and neurologist Egas Moniz at the University of Lisbon to provide contrasted X-ray cerebral angiography in order to diagnose several kinds of nervous diseases, such as tumors, artery disease and arteriovenous malformations. (wikipedia.org)
- Cerebral angiography is the criterion standard for the diagnosis of moyamoya disease. (medscape.com)
- Cerebral angiography is done in the hospital or radiology center. (sutterhealth.org)
- Cerebral angiography is most often used to identify or confirm problems with the blood vessels in the brain. (sutterhealth.org)
- In cerebral angiography, x-ray images show blood vessel abnormalities in the brain. (memorialcare.org)
- Usually, cerebral angiography is used after another test has already found an abnormality. (memorialcare.org)
- The images that result from cerebral angiography are not available from other techniques. (memorialcare.org)
- 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)
Fluorescein8
- A series of consecutive patients diagnosed with CSC, underwent OCTA and multimodal imaging, including spectral domain OCT, fluorescein, and indocyanine green angiography. (hindawi.com)
- Primarily used in ophthamology, OCT-A is a noninvasive alternative to dye-based techniques for blood vessel imaging, such as indocyanine-green angiography and fluorescein angiography. (photonics.com)
- OCTA allows clinicians to see individual capillaries more clearly than with the fluorescein angiography which requires an injection of dye into the bloodstream to highlight ocular blood vessels in the back of the eye. (prweb.com)
- Fluorescein angiography is an eye test that uses a special dye and camera to look at blood flow in the retina and choroid, the two layers in the back of the eye (MedlinePlus). (waterstones.com)
- This book is a practical guide to fluorescein angiography. (waterstones.com)
- Divided into five sections, it covers interpretation, general principles for interpreting a pathological fluorescein angiography, pathological fluorescein angiography analytical study, pathological fluorescein angiography and major fluorescein angiography syndromes, including diabetic retinopathy, vascular occlusions, age related macular degeneration and inflammatory disorders. (waterstones.com)
- Intravenous fluorescein angiography. (scripps.org)
- Velez-Montoya R, Olson JL, Mandava N. Fluorescein angiography and indocyanine green angiography. (scripps.org)
Computerised tomography1
- These are called computerised tomography (CT) angiography or magnetic resonance (MR) angiography. (www.nhs.uk)
CCTA5
- Coronary computed tomography angiography (CCTA) is an effective tool for determining the risk of heart attacks and other adverse cardiac events in patients with suspected coronary artery disease but no treatable risk factors, such as high cholesterol or high blood pressure, according to a new study. (prweb.com)
- Coronary computed tomography angiography (CCTA) has emerged as a viable screening option for plaque, including non-calcified plaque. (medicalnewstoday.com)
- Coronary computerized tomography angiography (CCTA) is a heart scan or imaging test that helps diagnose plaque buildup and consequent narrowing of the coronary arteries. (medicinenet.com)
- Coronary CT angiography (CCTA) may resolve the spotty accuracy in. (everydayhealth.com)
- The coronary CT angiography (CCTA) takes 64-cross-section images of the heart with each rotation and is fast enough to take motion-free images that are sharper and more detailed than ever before. (swedish.org)
Procedure16
- Angiography is generally a safe and painless procedure. (www.nhs.uk)
- But the procedure is very expensive (one 1995 analysis priced angiography at $5,500 per procedure). (encyclopedia.com)
- Other studies reveal that physicians are not as likely to recommend angiography for their female patients, even when they exhibit the same symptoms as male patients who receive the procedure. (encyclopedia.com)
- Aortic angiography is a procedure that uses a special dye and x-rays to see how blood flows through the aorta. (medlineplus.gov)
- Angiography is a procedure used to make pictures of blood vessels, including those of the head, kidneys, heart, arms, legs or lungs. (cancer.ca)
- Left heart ventricular angiography is a procedure to look at the left-sided heart chambers and the function of the left-sided valves. (ucsfhealth.org)
- Left heart ventricular angiography has some risk because it is an invasive procedure. (ucsfhealth.org)
- 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)
- With today's equipment, techniques, and contrast agents, spinal angiography is a safe procedure that carries little risk of complications, a retrospective study showed. (medpagetoday.com)
- Patients, O'Malley said, need to be aware that CT angiography, even though it's non-invasive, isn't a risk-free procedure. (foxnews.com)
- Angiography is a procedure to look at blood vessels in your body. (drugs.com)
- You may be able to discuss the results of your angiography with your consultant the day of your procedure or in a followup outpatient appointment. (nuffieldhealth.com)
- However in recent decades, radiologists, cardiologists and vascular surgeons have used the x-ray angiography procedure to guide minimally invasive surgery of the blood vessels and arteries of the heart. (imaginis.com)
- The technologist and radiologist remain at table-side during the procedure to operate the angiography system and work with the catheters, contrast injectors and related devices. (imaginis.com)
- July 13, 2012 -- CT angiography (CTA) using moderate doses of IV contrast in patients with advanced renal failure is a safe procedure that negatively affects renal function in only a small percentage of patients, according to researchers from Baltimore. (auntminnie.com)
- traditional procedure called coronary angiography . (everydayhealth.com)
Arteries24
- Angiography is a test that uses an injection of a liquid dye to make the arteries easily visible on X-rays. (netdoctor.co.uk)
- However, for the heart arteries, unfortunately there's often still a need for coronary angiography to obtain absolutely reliable data. (netdoctor.co.uk)
- Angiography is used to look at the coronary arteries that send blood to the heart. (netdoctor.co.uk)
- Angiography is used to look at the arteries in the legs and kidneys, as well as the aorta (the body's largest artery). (netdoctor.co.uk)
- Extremity angiography is a test used to see the arteries in the hands, arms, feet, or legs. (medlineplus.gov)
- Angiography uses x-rays and a special dye to see inside the arteries. (medlineplus.gov)
- It usually involves taking X-rays of the heart's arteries (coronary arteries) using a technique called coronary angiography or arteriography. (www.nhs.uk)
- Coronary angiography is also considered to be the best method of diagnosing coronary heart disease , where a build-up of fatty substances in the coronary arteries affects the heart's blood supply. (www.nhs.uk)
- Coronary angiography (an-jee-OG-ra-fee) is a test that uses dye and special x rays to show the inside of your coronary arteries . (conservapedia.com)
- During coronary angiography, a special dye is injected into the bloodstream to make the coronary arteries show up on an x ray. (conservapedia.com)
- Coronary angiography may be needed when blockage of the coronary arteries is suspected. (ucsfhealth.org)
- The program addresses the fundamental concerns associated with conventional angiography, which requires the injection of a contrast agent directely into the coronary arteries by the mean of arterial cathetherization. (esrf.eu)
- Arteriography is a type of angiography that involves the study of the arteries. (encyclopedia.com)
- Coronary computed tomographic (CT) angiography (CTA) is a high-resolution, noninvasive technique to image the coronary arteries and to detect the presence, severity, and extent of CAD. (ahajournals.org)
- For example, close to eight percent of patients had a stent inserted in their arteries after a CT angiography, compared to between two and three percent after stress tests. (foxnews.com)
- Angiography or arteriography is a medical imaging technique used to visualize the inside, or lumen, of blood vessels and organs of the body, with particular interest in the arteries, veins, and the heart chambers. (wikipedia.org)
- Coronary CT angiography imaging uses computed tomography (CT) to look at the blood vessels (coronary arteries) that provide blood to the heart muscle. (upmc.com)
- Coronary CT angiography uses a special computer to take multiple pictures of the heart and blood vessels using X-rays, and constructs a 3D picture of the arteries which can show the whether any material such as plaque has built up to cause a blockage. (upmc.com)
- An angiography (or cardiac catheterisation) is a test that can detect blockages or narrowing in the coronary arteries. (nuffieldhealth.com)
- He has published selected cases in more than 35 scientific papers as well as in the present atlas, and he also used some of the acquired images in his PhD thesis on the study of the morphology of accessory renal arteries by means of MDCT angiography. (springer.com)
- In coronary artery disease treatment, the applications allow precise correlation of angiography images with ultrasound images taken by a probe inside the coronary arteries. (innovations-report.com)
- Other combined signs like papillary muscle calcification, bronchial arteries from aorta to the cardiac and coronary artery degeneration change were also included by MDCT angiography findings in a single data acquisition. (scirp.org)
- J. C. Post, A. C. van Rossum, J. G. Bronzwaer, C. C. de Cock, M. B. Hofman and J. Valk, "Magnetic Resonance Angiography of Anomalous Coronary Arteries. (scirp.org)
- Among the 19 patients with magnetic resonance angiography lesions in the subclavian/axillary arteries, 12 (75%) had biopsy-proven GCA, but only 5 (41%) of these patients had clinical features of large artery disease. (nih.gov)
Arteriography2
- Angiography may also be called arteriography. (cancer.ca)
- Coronary arteriography, also called coronary angiography , is the standard diagnostic test for coronary artery. (everydayhealth.com)
Interventions1
- Developed in collaboration with the Society for Cardiac Angiography and Interventions. (springer.com)
Vascular8
- With the advent of CT and MRI in the 1970s and 1980s, the exquisite anatomic and diagnostic information obtained from these examinations began to confine the role of angiography to its core strength of evaluating vascular abnormalities. (springer.com)
- Among 236 patients who had abnormalities such as flow voids identified on MRI, the positive likelihood ratio of vascular malformation on angiography was 2.6 (95% CI 1.8 to 3.8), with a negative likelihood ratio of 0.61 (95% CI 0.47 to 0.79), the researchers reported. (medpagetoday.com)
- The term angiography has been applied to radionuclide angiography and newer vascular imaging techniques such as CO2 angiography, CT angiography and MR angiography. (wikipedia.org)
- 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)
- OCT Angiography Reveals Severe Attenuation of Deep Capillary Macular Vascular Flow Index in Nonproliferative Diabetic Retinopathy. (aao.org)
- Good news for retinal patients in the Ozarks: Mattax Neu Prater Eye Center becomes the first in the area to offer AngioPlex™ Optical Coherence Tomography (OCT) Angiography, imaging technology used to more easily identify the earliest signs of retinal disease, such as macular degeneration, diabetic retinopathy, and other vascular conditions. (prweb.com)
- In the last several years, diagnostic vascular images are often made using MR, CT and/or ultrasound and while x-ray angiography is reserved for therapy. (imaginis.com)
- Conventional x-ray angiography has a lead role in the detection, diagnosis and treatment of heart disease, heart attack , acute stroke and vascular disease which can lead to stroke. (imaginis.com)
Renal3
- Risks for renal dysfunction with cardiac angiography. (nih.gov)
- Contraindications to computed tomographic angiography (CTA) include renal disease, severe allergy to iodine contrast, inability to follow breath-hold instructions, and pregnancy. (ahajournals.org)
- To make it possible to do angiography and surgery on the same day and largely diminish the possibility of renal failure, Mayo physicians use other contrast agents. (eurekalert.org)
Contrast-enhanced magnetic resonance a2
- The objective of the study was to retrospectively review extracranial involvement in patients with GCA and/or polymyalgia rheumatica (PMR), evaluated with magnetic resonance imaging (MRI), especially 3-dimensional contrast-enhanced magnetic resonance angiography images of the aortic arch and its branches. (nih.gov)
- A number of diagnostic imaging techniques exist, including computed tomography angiography (CTA) and contrast-enhanced magnetic resonance angiography (CEMRA), to aid in PAD diagnosis and subsequent treatment planning. (mdpi.com)
Patients21
- A study published in the Journal of the American Medical Association (JAMA) in 1992 found that of patients who were told they needed angiography, 80 percent did not actually need it. (encyclopedia.com)
- In patients presenting with stable chest pain with low to intermediate predicted risk of coronary artery disease, CT coronary angiography leads to more accurate detection of coronary artery disease, fewer second-line investigations and more definitive rule out of coronary artery disease with lower cost to reach diagnosis compared with exercise tolerance testing. (nice.org.uk)
- NICE guideline 95 proposes using CT coronary angiography (CTCA) in patients at low predicted risk of coronary artery disease only. (nice.org.uk)
- We designed this audit to compare the performance of CT coronary angiography versus exercise tolerance testing (ETT) in patients presenting with stable chest pain and low AND intermediate predicted risk of coronary artery disease. (nice.org.uk)
- To determine whether CT coronary angiography can outperform exercise tolerance testing in patients presenting with stable chest pain at higher predicted risk of coronary artery disease (i.e. not just low risk, as recommended by NICE clinical guideline 95, but also intermediate risk). (nice.org.uk)
- We compared two cohorts of patients pre-and post introduction of CT coronary angiography (CTCA) in our hospital presenting with stable chest pain to the Rapid Access Chest Pain Clinic. (nice.org.uk)
- CT coronary angiography (CTCA) is a highly effective first-line investigation in those patients assessed to be at low-intermediate predicted risk of coronary artery disease. (nice.org.uk)
- However, it is much less effective in patients with extensive coronary artery disease (due to coronary artery calcification degrading image quality) and alternative investigations such as functional testing or invasive coronary angiography are more appropriate. (nice.org.uk)
- Because no contrast is given, it is a good alternative to CT angiography for patients that can't tolerate CT contrast (iodinated contrast. (cedars-sinai.edu)
- Patients with kidney disease or injury may suffer further kidney damage from the contrast mediums used for angiography. (encyclopedia.com)
- An additional factor supporting the safety of spinal angiography was that most of the procedures in this series were done with patients under conscious sedation. (medpagetoday.com)
- Baseline right ventricular ejection fraction (RVEF) as evaluated by conventional planar equilibrium radionuclide angiography (ERNA) is significantly associated with outcomes in patients with pulmonary arterial hypertension (PAH), research suggests. (news-medical.net)
- Single-center studies have yielded good results, leading to increased referrals for patients who otherwise would have undergone invasive angiography, the authors noted. (medpagetoday.com)
- Among symptomatic patients, chest pain (87.2%) and dyspnea (52.1%) were the only indications for coronary angiography. (medpagetoday.com)
- UC San Diego Health was the first in the county to offer patients advanced angiography rooms. (ucsd.edu)
- Accurate diagnosis with dynamic CT scan and angiography and control of bleeding with angiographic embolization has improved the outcome in patients with this complication. (nih.gov)
- HERSHEY, PA - A new meta-analysis shows that use of coronary computed tomography angiography (CTA) is associated with significantly fewer MIs than standard functional stress testing in patients with suspected CAD and acute or stable chest pain [ 1 ] . (medscape.com)
- Current guidelines, his team wrote in the Journal of the American Medical Association, call for a stress test for most patients, with angiography reserved for those whose stress test indicates problems or who have signs of higher heart risks. (foxnews.com)
- Physicians at Carroll County General Hospital soon will have a new tool that will enable them to better detect and treat patients' heart and blood vessel disorders.Hospital officials say they hope the opening later this fall of the angiography and cardiac catheterizationlab will keep Carroll patients with cardiovascular problems from seeking treatment outside the county. (baltimoresun.com)
- ROCHESTER, Minn. -- Mayo Clinic researchers discovered it is safe -- and much more convenient and less costly -- for many patients to undergo coronary angiography and elective valve surgery on the same day, it is reported in the current issue of Mayo Clinic Proceedings. (eurekalert.org)
- We have developed a protocol to allow patients to safely have coronary angiography on the same day as their elective surgery," says David Holmes Jr., M.D., a cardiologist at Mayo Clinic and one of the study authors. (eurekalert.org)
Diagnosis3
- This study was undertaken to analyze presentation and outcome and to assess the role of angiography in diagnosis and management of this complication. (nih.gov)
- Magnetic resonance angiography (MRA) may have already replaced conventional angiography for the diagnosis of internal carotid artery dissection. (medscape.com)
- Helical (spiral) CT angiography (CTA) has an established role in the diagnosis of internal carotid artery dissection, and with the increased use and availability of high-resolution multidetector scanners, it is rapidly replacing conventional angiography and possibly MRA as the diagnostic modality of choice. (medscape.com)
Need computed tomography1
- Why might I need computed tomography angiography? (hopkinsmedicine.org)
Conventional coronary angiography3
- 1998) are promising, but despite an active research in these domains, the conventional coronary angiography remains the gold standard technique. (esrf.eu)
- In an effort to help clarify the potential diagnostic role of CTCA in "real-world" practice, investigators at four Canadian centers participated in a multivendor field evaluation of 64-slice CTCA and comparison with conventional coronary angiography. (medpagetoday.com)
- The authors reported that 53% of the entire cohort had clinically significant disease, defined as ≥50% stenosis by conventional coronary angiography. (medpagetoday.com)
Complications3
- Angiography: principles, techniques and complications. (medlineplus.gov)
- The history, technic, and complications of coronary angiography have been discussed. (ahajournals.org)
- To clarify these concerns, the researchers reviewed their institution's records from 2000 to 2010 to identify all neurologic, non-neurologic, and local complications associated with spinal angiography. (medpagetoday.com)
Blockage4
- If your healthcare provider believes that you may have a narrowing or blockage of blood vessels somewhere in your body, he or she may recommend magnetic resonance angiography. (hopkinsmedicine.org)
- The proper utility of this test is in somebody who is symptomatic that you think needs a coronary angiography, but you want to avoid the risk of it, so you want to rule out any clinically significant (artery blockage). (foxnews.com)
- Angiography can be used to look for narrowing, a blockage, or problems with your blood vessels. (drugs.com)
- Traditionally, angiography was used to diagnose pathology of these vessels such as blockage caused by plaque build up. (imaginis.com)
Diagnostic5
- The maturing of CT and MRI with the widespread use of MR and CT angiography has further encroached on the use of angiography in a primary diagnostic capacity. (springer.com)
- Furthermore, the dramatic progress in interventional neuroradiologic materials, techniques, and therapies has changed the role of angiography from primarily diagnostic to primarily pretherapeutic or therapeutic. (springer.com)
- Sakhuja R, Gandhi S. Diagnostic coronary angiography. (springer.com)
- Improved resolution, speed, noninvasiveness, absence of irradiation, and good negative predictive value make MRA an excellent screening and diagnostic tool, one that in most cases is superior to conventional angiography. (medscape.com)
- Based on his management position in the NEUROMED Diagnostic Imaging Center, he has dedicated the past 10 years of his work to the study of MRA and CT angiography imaging in this field. (springer.com)
Catheters3
- With known angiography catheters of this type, the curvature can deform quite considerably during injection of the contrast liquid as a result of the reaction forces of the contrast liquid flowing in the curvature and spurting outward from the end opening. (google.com)
- Interventional radiologists also use angiography to place catheters directly into tumors (allowing direct injection of chemotherapy into the tumor), and for cutting off blood flow to fibroids and aneurysms. (ucsd.edu)
- During angiography, physicians inject streams of contrast agents or dyes into the area of interest using catheters to create detailed images of the blood vessels in real time. (imaginis.com)
Role of angiography1
- Arterial hemorrhage complicating pancreatic pseudocysts: role of angiography. (nih.gov)
Perform CT angiography2
- He was the first doctor to perform CT angiography in Romania on a 64-slice CT scanner. (springer.com)
- The dye injected to perform CT angiography is called a contrast material because it "lights up" blood vessels and tissues that are being studied. (hopkinsmedicine.org)
20181
- 2018. "Quiescent-Interval Single-Shot Magnetic Resonance Angiography. (mdpi.com)
Intravenous1
- In all cases, angiography requires that intravenous contrast is administered. (imaginis.com)
Interventional3
- 3D angiography or Rotational Angiography is used in interventional radiology, interventional cardiology and minimally-invasive surgery (e.g. (wikipedia.org)
- Our goal is to pioneer a solution designed to free interventional radiologists from traditional constraints," says Chantal Le Chat, General Manager of GE Healthcare Premium Angiography. (businesswire.com)
- 20 Best Angiography Technologist, Interventional Radiology jobs (Hiring Now! (simplyhired.com)
OCTA1
- In just a few seconds, OCT angiography (OCTA) takes a single, non-invasive scan of the retina to produce a high-resolution view of the separate layers of the retina and its blood vessels. (prweb.com)
Search1
- These images are a random sampling from a Bing search on the term "Coronary Angiography. (fpnotebook.com)
Special dye1
- CT angiography is a type of medical test that combines a CT scan with an injection of a special dye to produce pictures of blood vessels and tissues in a part of your body. (hopkinsmedicine.org)
Rotational angiography6
- Synonyms for rotational angiography include flat-panel volume CT and cone-beam CT. (wikipedia.org)
- Choosing between CT and rotational angiography depends on several factors. (wikipedia.org)
- An article from the heart center in Leipzig suggests that intraoperative 3D imaging with rotational angiography is much more precise and can be performed with low contrast and low radiation dose if combined with diluted contrast injection and rapid ventricular pacing. (wikipedia.org)
- Changes in anatomy: During endovascular procedures, such as the grafting of an aortic aneurysm, 3D planning can be done either on CT image acquired preoperatively or on an intraoperative 3D image acquired by rotational angiography. (wikipedia.org)
- Image quality can differ between rotational angiography and CT images. (wikipedia.org)
- Rotational angiography may increase the exposure of workers to scattered radiation, as the X-ray source moves around the patient. (wikipedia.org)
Peripheral3
- It is also called peripheral angiography. (medlineplus.gov)
- The implications for common practice are that radiologists' time can be significantly reduced in ordinary peripheral angiographies and that the number of retakes due to large or local motion artifacts will be much reduced. (diva-portal.org)
- With reliable solutions that deliver the precise control you demand, our innovative Peripheral Intervention solutions for angiography procedures are the industry's best choice. (merit.com)
Findings2
- Which findings on angiography are characteristic of choroidal melanoma? (medscape.com)
- Any of the above findings on MRA or CTA may preclude the need for conventional angiography. (medscape.com)
Vessels18
- Angiography is a type of X-ray used to check the blood vessels. (www.nhs.uk)
- Angiography is used to check the health of your blood vessels and how blood flows through them. (www.nhs.uk)
- Angiography may be used if the doctor is considering surgery, because it shows a clear picture of the blood vessels. (netdoctor.co.uk)
- There is a small risk of angiography damaging blood vessels because it passes them. (netdoctor.co.uk)
- Coronary angiography is an X-ray of the heart and blood vessels of a living patient. (encyclopedia.com)
- Angiography may be done to see how the blood flows through the blood vessels. (cancer.ca)
- Coronary angiography can detect weakened blood vessel walls and narrowed or blocked vessels. (heart.org)
- 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)
- 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)
- while stenoses in the heart's smallest blood vessels can be spotted in coronary angiography. (innovations-report.com)
- X-ray angiography is performed to specifically image and diagnose diseases of the blood vessels of the body, including the brain and heart. (imaginis.com)
- Using angiography to see inside the body, doctors can repair blood vessels without the use of a scalpel and fully invasive surgical methods. (imaginis.com)
- In this method, angiography is used to guide surgical stents (small cylindrical supports) into place in order to re-open clogged blood vessels. (imaginis.com)
- In traditional angiography images are acquired by exposing an area of interst with time-controlled x-rays while injecting contrast medium into the blood vessels. (bionity.com)
- An angiography is an image test of blood vessels. (memorialhealth.com)
- Computed tomography angiography (CTA) is a specialized x-ray that examines blood flow in blood vessels when they are filled with a contrast material. (stdavids.com)
Risks4
- Read more about the risks of angiography . (www.nhs.uk)
- What are the risks of magnetic resonance angiography? (hopkinsmedicine.org)
- If you are at all concerned about the risks of having angiography be sure and discuss them with a member of our healthcare team. (nuffieldhealth.com)
- What are the risks for a computed tomography angiography? (hopkinsmedicine.org)
Technologist4
- How much does a Angiography Technologist make in the United States? (salaryexpert.com)
- The average angiography technologist salary in United States is $52,690 or an equivalent hourly rate of $25. (salaryexpert.com)
- An entry level angiography technologist (1-3 years of experience) earns an average salary of $38,540. (salaryexpert.com)
- On the other end, a senior level angiography technologist (8+ years of experience) earns an average salary of $64,484. (salaryexpert.com)
Artery9
- Angiography may reveal aneurysms (a bulge on an artery caused by a blood vessel wall becoming weaker). (netdoctor.co.uk)
- Considered the "gold standard" for diagnosing coronary artery disease , angiography is now done so frequently that it is almost commonplace. (encyclopedia.com)
- Computed tomography coronary angiography (CTA) is a newly developed technique for non-invasive evaluation of coronary artery disease. (emoryhealthcare.org)
- The appropriateness of coronary angiography and coronary artery bypass surgery in the Trent regional health authority was assessed by comparison with predetermined consensus criteria. (rand.org)
- Coronary angiography can visualize coronary artery stenosis, or narrowing of the blood vessel. (wikipedia.org)
- Conventional angiography was the standard modality for diagnosing internal carotid artery dissection. (medscape.com)
- Siemens Healthcare has developed a revolutionary new X-ray tube and detector technology for its Artis Q and Artis Q.zen angiography systems to improve minimally invasive therapy of diseases such as coronary artery disease, stroke and cancer. (innovations-report.com)
- To make a pictorial presentation of the anomalous origin of left coronary artery arising from the pulmonary artery (ALCAPA) appearances in adults on MDCT angiography. (scirp.org)
- Of the 226, angiography showed that 28.3 percent had severe enough coronary artery disease to also require bypass surgery, in addition to valve surgery. (eurekalert.org)
Blood3
- Left heart angiography is performed to assess the blood flow through the left side of the heart. (ucsfhealth.org)
- Angiography is a high-tech technique in which a dye is injected into a blood vessel and X-rayed to provide a clear, detailed image of the vessel's anatomy. (ucsd.edu)
- With the invention of non-invasie magnetic resonance imaging (MRI) technique, imaging of flow has blossomed into a powerful technique to visualise blood flow in vessel, called MR Angiography (MRA). (medindia.net)
Kidneys1
- Angiography contrast material can damage your kidneys, so you may not be able to have this test if you have severe kidney disease or diabetes . (hopkinsmedicine.org)
Invasive coronary1
- Subsequent invasive coronary angiography (ICA) was significantly higher with the CTA strategy overall (RR 1.33, 95% CI 1.12-1.59) as were revascularizations (RR 1.86, 95% CI 1.43-2.43). (medscape.com)
Procedures4
- Coronary angiography can be used to help diagnose heart conditions, help plan future treatments and carry out certain procedures. (www.nhs.uk)
- Your provider may decide to perform one of these procedures instead of left heart ventricular angiography. (ucsfhealth.org)
- Most conventional x-ray angiography procedures are similar. (imaginis.com)
- Some angiography procedures can take up to two hours while other procedures take less than an hour. (imaginis.com)
Test3
- Is CT Angiography the Best First Test for Chest Pain? (medscape.com)
- CT angiography "is a very sensitive test, meaning that you'll see an abnormality if it's there. (foxnews.com)
- It is being taken over by Computed Tomography Angiography , which can produce 3D images through a test which is less invasive and stressful for the patient. (bionity.com)
MDCT1
- A retrospective evaluation was performed between 2005 and 2011 by ECG-gated coronary MDCT angiography. (scirp.org)
Cardiac catheterization2
- Coronary angiography is often done along with cardiac catheterization . (ucsfhealth.org)
- cardiac catheterization combines angiography and pressure measurements. (citizendium.org)
Angiograms1
- There are alternatives nowadays to angiography, such as CT scan , MRI scans , nuclear scans, and ultrasound scans , which often produce information as accurate and useful as angiograms. (netdoctor.co.uk)