Cerebral Ventriculography: Radiography of the ventricular system of the brain after injection of air or other contrast medium directly into the cerebral ventricles. It is used also for x-ray computed tomography of the cerebral ventricles.Radionuclide Ventriculography: Imaging of a ventricle of the heart after the injection of a radioactive contrast medium. The technique is less invasive than cardiac catheterization and is used to assess ventricular function.Ventriculography, First-Pass: Radionuclide ventriculography where a bolus of radionuclide is injected and data are recorded from one pass through the heart ventricle. Left and right ventricular function can be analyzed independently during this technique. First-pass ventriculography is preferred over GATED BLOOD-POOL IMAGING for assessing right ventricular function.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).Cerebral Arteries: The arterial blood vessels supplying the CEREBRUM.Stroke Volume: The amount of BLOOD pumped out of the HEART per beat, not to be confused with cardiac output (volume/time). It is calculated as the difference between the end-diastolic volume and the end-systolic volume.Angiocardiography: Radiography of the heart and great vessels after injection of a contrast medium.Heart Ventricles: The lower right and left chambers of the heart. The right ventricle pumps venous BLOOD into the LUNGS and the left ventricle pumps oxygenated blood into the systemic arterial circulation.Cineangiography: Motion pictures of the passage of contrast medium through blood vessels.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).Heart Aneurysm: A localized bulging or dilatation in the muscle wall of a heart (MYOCARDIUM), usually in the LEFT VENTRICLE. Blood-filled aneurysms are dangerous because they may burst. Fibrous aneurysms interfere with the heart function through the loss of contractility. True aneurysm is bound by the vessel wall or cardiac wall. False aneurysms are HEMATOMA caused by myocardial rupture.Sodium Pertechnetate Tc 99m: A gamma-emitting radionuclide imaging agent used for the diagnosis of diseases in many tissues, particularly in the gastrointestinal system, cardiovascular and cerebral circulation, brain, thyroid, and joints.Ventricular Function, Left: The hemodynamic and electrophysiological action of the left HEART VENTRICLE. Its measurement is an important aspect of the clinical evaluation of patients with heart disease to determine the effects of the disease on cardiac performance.Cerebral Palsy: A heterogeneous group of nonprogressive motor disorders caused by chronic brain injuries that originate in the prenatal period, perinatal period, or first few years of life. The four major subtypes are spastic, athetoid, ataxic, and mixed cerebral palsy, with spastic forms being the most common. The motor disorder may range from difficulties with fine motor control to severe spasticity (see MUSCLE SPASTICITY) in all limbs. Spastic diplegia (Little disease) is the most common subtype, and is characterized by spasticity that is more prominent in the legs than in the arms. Pathologically, this condition may be associated with LEUKOMALACIA, PERIVENTRICULAR. (From Dev Med Child Neurol 1998 Aug;40(8):520-7)Radionuclide Angiography: The measurement of visualization by radiation of any organ after a radionuclide has been injected into its blood supply. It is used to diagnose heart, liver, lung, and other diseases and to measure the function of those organs, except renography, for which RADIOISOTOPE RENOGRAPHY is available.Cerebrovascular Circulation: The circulation of blood through the BLOOD VESSELS of the BRAIN.Takotsubo Cardiomyopathy: A transient left ventricular apical dysfunction or ballooning accompanied by electrocardiographic (ECG) T wave inversions. This abnormality is associated with high levels of CATECHOLAMINES, either administered or endogenously secreted from a tumor or during extreme stress.Ventricular Dysfunction, Left: A condition in which the LEFT VENTRICLE of the heart was functionally impaired. This condition usually leads to HEART FAILURE; MYOCARDIAL INFARCTION; and other cardiovascular complications. Diagnosis is made by measuring the diminished ejection fraction and a depressed level of motility of the left ventricular wall.Middle Cerebral Artery: The largest of the cerebral arteries. It trifurcates into temporal, frontal, and parietal branches supplying blood to most of the parenchyma of these lobes in the CEREBRAL CORTEX. These are the areas involved in motor, sensory, and speech activities.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.Heart: The hollow, muscular organ that maintains the circulation of the blood.Iothalamate Meglumine: A radiopaque medium used for urography, angiography, venography, and myelography. It is highly viscous and binds to plasma proteins.Myocardial Infarction: NECROSIS of the MYOCARDIUM caused by an obstruction of the blood supply to the heart (CORONARY 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.Diatrizoate: A commonly used x-ray contrast medium. As DIATRIZOATE MEGLUMINE and as Diatrizoate sodium, it is used for gastrointestinal studies, angiography, and urography.Prenalterol: A partial adrenergic agonist with functional beta 1-receptor specificity and inotropic effect. It is effective in the treatment of acute CARDIAC FAILURE, postmyocardial infarction low-output syndrome, SHOCK, and reducing ORTHOSTATIC HYPOTENSION in the SHY-RAGER SYNDROME.Echocardiography: Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic.Technetium Tc 99m Pyrophosphate: A radionuclide imaging agent used primarily in scintigraphy or tomography of the heart to evaluate the extent of the necrotic myocardial process. It has also been used in noninvasive tests for the distribution of organ involvement in different types of amyloidosis and for the evaluation of muscle necrosis in the extremities.Thallium: A heavy, bluish white metal, atomic number 81, atomic weight [204.382; 204.385], symbol Tl.Iopamidol: A non-ionic, water-soluble contrast agent which is used in myelography, arthrography, nephroangiography, arteriography, and other radiological procedures.Cerebral Angiography: Radiography of the vascular system of the brain after injection of a contrast medium.Infarction, Middle Cerebral Artery: NECROSIS occurring in the MIDDLE CEREBRAL ARTERY distribution system which brings blood to the entire lateral aspects of each CEREBRAL HEMISPHERE. Clinical signs include impaired cognition; APHASIA; AGRAPHIA; weak and numbness in the face and arms, contralaterally or bilaterally depending on the infarction.Cardiac Volume: The volume of the HEART, usually relating to the volume of BLOOD contained within it at various periods of the cardiac cycle. The amount of blood ejected from a ventricle at each beat is STROKE VOLUME.Iothalamic Acid: A contrast medium in diagnostic radiology with properties similar to those of diatrizoic acid. It is used primarily as its sodium and meglumine (IOTHALAMATE MEGLUMINE) salts.Malaria, Cerebral: A condition characterized by somnolence or coma in the presence of an acute infection with PLASMODIUM FALCIPARUM (and rarely other Plasmodium species). Initial clinical manifestations include HEADACHES; SEIZURES; and alterations of mentation followed by a rapid progression to COMA. Pathologic features include cerebral capillaries filled with parasitized erythrocytes and multiple small foci of cortical and subcortical necrosis. (From Adams et al., Principles of Neurology, 6th ed, p136)Coronary Disease: An imbalance between myocardial functional requirements and the capacity of the CORONARY VESSELS to supply sufficient blood flow. It is a form of MYOCARDIAL ISCHEMIA (insufficient blood supply to the heart muscle) caused by a decreased capacity of the coronary vessels.Brain: The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.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.Cardiac Catheterization: Procedures in which placement of CARDIAC CATHETERS is performed for therapeutic or diagnostic procedures.Coronary Angiography: Radiography of the vascular system of the heart muscle after injection of a contrast medium.Cerebral Veins: Veins draining the cerebrum.Dictionaries, MedicalDictionaries as Topic: Lists of words, usually in alphabetical order, giving information about form, pronunciation, etymology, grammar, and meaning.Dictionaries, ChemicalArchivesBiological Science Disciplines: All of the divisions of the natural sciences dealing with the various aspects of the phenomena of life and vital processes. The concept includes anatomy and physiology, biochemistry and biophysics, and the biology of animals, plants, and microorganisms. It should be differentiated from BIOLOGY, one of its subdivisions, concerned specifically with the origin and life processes of living organisms.Periodicals as Topic: A publication issued at stated, more or less regular, intervals.PubMed: A bibliographic database that includes MEDLINE as its primary subset. It is produced by the National Center for Biotechnology Information (NCBI), part of the NATIONAL LIBRARY OF MEDICINE. PubMed, which is searchable through NLM's Web site, also includes access to additional citations to selected life sciences journals not in MEDLINE, and links to other resources such as the full-text of articles at participating publishers' Web sites, NCBI's molecular biology databases, and PubMed Central.Directories as Topic: Lists of persons or organizations, systematically arranged, usually in alphabetic or classed order, giving address, affiliations, etc., for individuals, and giving address, officers, functions, and similar data for organizations. (ALA Glossary of Library and Information Science, 1983)Spinal NeoplasmsPublishing: "The business or profession of the commercial production and issuance of literature" (Webster's 3d). It includes the publisher, publication processes, editing and editors. Production may be by conventional printing methods or by electronic publishing.

Large empty sella with an intrasellar herniation of an elongated third ventricle. Case report. (1/112)

A 73-year-old female presented with a large empty sella with herniation of an elongated third ventricle concomitant with herniation of the surrounding subarachnoid space into the sella, manifesting as visual impairment and amenorrhea without galactorrhea. Magnetic resonance imaging and computed tomography cisternography clearly showed the large empty sella, without evidence of either hydrocephalus or benign intracranial hypertension, which is extremely rare.  (+info)

Midline cerebellar cystic schwannoma : a case report. (2/112)

An extremely unusual case of a cystic schwannoma in the region of the inferior vermis and posterior to the fourth ventricle in a fifteen year old boy is reported. The cystic tumour caused partial obstruction to the outflow of cerebrospinal fluid from fourth ventricle and resulted in development of supratentorial hydrocephalus. On investigations, the schwannoma simulated a Dandy-Walker cyst. The boy presented with symptoms of increased intracranial pressure. On surgery, the lesion was not arising from any cranial nerve, nor was it attached to brain parenchyma, blood vessel or to the dura. The possible histogenesis of the cystic schwannoma in a rare location is discussed.  (+info)

Initial loss of consciousness and risk of delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage. (3/112)

BACKGROUND AND PURPOSE: Delayed cerebral ischemia (DCI) is a major cause of death and disability in patients with aneurysmal subarachnoid hemorrhage. We studied the prognostic value for DCI of 2 factors: the duration of unconsciousness after the hemorrhage and the presence of risk factors for atherosclerosis. METHODS: In 125 consecutive patients admitted within 4 days after hemorrhage, we assessed the presence and duration of unconsciousness after the hemorrhage, the neurological condition on admission, the amount of subarachnoid blood, the size of the ventricles, and a history of smoking, hypertension, stroke, or myocardial infarction. The relationship between these variables and the development of DCI was analyzed by means of the Cox proportional hazards model. RESULTS: The univariate hazard ratio (HR) for the development of DCI in patients who had lost consciousness for >1 hour was 6.0 (95% CI 3.0 to 12.0) compared with patients who had no loss or a <1-hour loss of consciousness. The presence of any risk factor for atherosclerosis yielded an HR of 1.4 (95% CI 0.6 to 3.5). The HR for unconsciousness remained essentially the same after adjustment for other risk factors for DCI. The HR for a poor World Federation of Neurological Surgeons score (grade IV or V) on admission was 2.9 (95% CI 1.5 to 5. 5); that for a large amount of subarachnoid blood on CT was 3.4 (95% CI 1.6 to 7.3). CONCLUSIONS: The duration of unconsciousness after subarachnoid hemorrhage is a strong predictor for the occurrence of DCI. This observation may contribute to a better understanding of the pathogenesis of DCI and increased attention for patients at risk.  (+info)

Prediction of effectiveness of shunting in patients with normal pressure hydrocephalus by cerebral blood flow measurement and computed tomography cisternography. (4/112)

Measurement of cerebral blood flow (CBF) and computed tomography (CT) cisternography were performed in 37 patients with a tentative diagnosis of normal pressure hydrocephalus (NPH) to predict their surgical outcome. The mean CBF of the whole brain was measured quantitatively by single photon emission computed tomography with technetium-99m-hexamethylpropylene amine oxime before surgery. The results of CT cisternography were classified into four patterns: type I, no ventricular stasis at 24 hours; type II, no ventricular stasis with delayed clearance of cerebral blush; type III, persistent ventricular stasis with prominent cerebral blush; type IV, persistent ventricular stasis with diminished cerebral blush and/or asymmetrical filling of the sylvian fissures. The mean CBF was significantly lower than that of age-matched controls (p < 0.005). Patients with a favorable outcome had a significantly higher mean CBF than patients with an unfavorable outcome (p < 0.005). Patients with the type I pattern did not respond to shunting. Some patients with type II and III patterns responded to shunting but improvement was unsatisfactory. Patients with type IV pattern responded well to shunting, and those with a mean CBF of 35 ml/100 g/min or over achieved a favorable outcome. The combination of CBF measurement and CT cisternography can improve the prediction of surgical outcome in patients with suspected NPH.  (+info)

Treatment of intraventricular hemorrhage with urokinase : effects on 30-Day survival. (5/112)

BACKGROUND AND PURPOSE: Intraventricular hemorrhage (IVH) remains associated with high morbidity and mortality. Therapy with external ventricular drainage alone has not modified outcome in these patients. METHODS: Twelve pilot IVH patients who required external ventricular drainage were prospectively treated with intraventricular urokinase followed by the randomized, double-blinded allocation of 8 patients to either treatment or placebo. Observed 30-day mortality was compared with predicted 30-day mortality obtained by use of a previously validated method. RESULTS: Twenty patients were enrolled; admission Glasgow Coma Scale score in 11 patients was +info)

The adult radiographic shuntogram. (6/112)

We describe the adult radiographic shuntogram, a simple method to evaluate the function and patency of a ventriculoperitoneal or ventriculoatrial shunt. The procedure involves placing contrast material into the valve of a shunt system and following the flow for appropriate clearing of contrast agent from the shunt tubing. Twenty-three studies were obtained in 15 patients in whom shunt malfunction was suspected. The method can be used to establish valve malfunction, ventricular or distal catheter obstruction, and peritoneal encystment.  (+info)

Radiological abnormalities in temporal lobe epilepsy with clinicopathological correlations. (7/112)

In 73 patients with drug-resistant temporal lobe epilepsy submitted to an unilateral anterior temporal lobectomy the radiographs were studied to see if there were any correlation with the pathology subsequently found and with the outcome of the operation. A small middle cranial fossa, focal calcification, and temporal horn displacement are often better indices of the underlying pathology than temporal horn dilatation alone. In a small number of cases, however, radiological changes were seen on the side opposite to an unilateral EEG focus, thus suggesting bilateral disease.  (+info)

Effect of intracranial pressure of meglumine iothalamate ventriculography. (8/112)

Intraventricular pressure was studied in 12 patients undergoing ventriculography with a water soluble positive contrast medium. Isovolumetric instillation of meglumine iothalamate into the lateral ventricles and the anterior part of the third ventricle caused only a small increase in ventricular fluid pressure (1.3 +/- 0.3 mmHg), but the pressure increased markedly (46.3 +/- 3.7 mmHg; P less than 0.001) when the contrast medium entered the posterior end of the third ventricle, aqueduct of Sylvius,, and fourth ventricle. This sharp increase in intracranial pressure could not be attributed solely to the postural changes or to alterations in arterial blood pressure. Possible mechanisms are discussed.  (+info)

4. patients who are unable to provide informed consent. In addition, we will exclude those showing rapid early deterioration of symptoms, as well as those with a concurrent diagnosis of rapidly deteriorating disease (e.g., terminal cancer ...
Looking for online definition of cerebral ventriculography in the Medical Dictionary? cerebral ventriculography explanation free. What is cerebral ventriculography? Meaning of cerebral ventriculography medical term. What does cerebral ventriculography mean?
Pneumoencephalography makes use of plain X-ray images. Unfortunately, these are very poor at resolving soft tissues, such as the brain. Moreover, all the structures captured in the image are superimposed on top of each other, which makes it difficult to pick out individual items of interest (unlike modern scanners which are able to produce fine virtual slices of the body, including of soft tissues). Therefore, pneumoencephalography did not usually image abnormalities directly, rather their secondary effects. The overall structure of the brain contains crevices and cavities which are filled by the CSF. Unfortunately, both the brain and the CSF produce similar signals on an X-ray image. However, draining the CSF allows for greater contrast between the brain matter and the (now drained) crevices in and around it, which then show up as dark shadows on the X-ray image. The aim of pneumoencephalography is to outline these shadow-forming air-filled structures so that their shape and anatomical location ...
Semantic Scholar extracted view of [Alterations of the cerebrospinal fluid during pneumoencephalography]. by Cecilia B Castells et al.
Concentrations of homovanillic acid (HVA) and 5-hydroxyindoleacetic acid (5-HIAA) were significantly higher in CSF obtained after injection of air during pneumoencephalography (PEG) than in lumbar CSF, as drawn before the injection. There was a high correlation between levels in the `mixed and lumbar samples of CSF in the case of each of the two acids. The concentration of lumbar HVA, but not that of 5-HIAA, was negatively correlated with CSF pressure. 5-HIAA levels were low in both samples of CSF in a group of epileptics, by comparison with controls. In two patients with Kufs disease and in one with Niemann-Pick disease, the concentration of HVA was very low in the lumbar sample. The application of a standardized PEG technique in the study of monoamine metabolism in man is suggested.. ...
Looking for noncommunicating hydrocephaly? Find out information about noncommunicating hydrocephaly. obstructive hydrocephaly Explanation of noncommunicating hydrocephaly
n. a technique used in the X-ray diagnosis of disease within the skull. Air is introduced into the cavities (ventricles) of the brain to displace the cerebrospinal fluid, thus acting as a contrast medium. X-ray photographs show the size and disposition of the ventricles and the subarachnoid spaces. The technique has largely been superseded by CT and MRI scanning. ...
A detailed description of the authors method of performing fractional pneumoencephalography. Two hundred and nineteen drawings illustrate radiographic anatomy and pathology, often indicating effectively how the head is to be positioned. There is major emphasis on tumor, but trauma, edema, atrophy, and malformation are included. There is little recent material on hydrocephalus or shunt procedures. The index is adequate. There is no bibliography other than name references. This French text will interest those concerned with fractional pneumoencephalography. (SIMON HORENSTEIN, M.D., St. Louis University, St. Louis, Mo.) ...
Monitoring is probably the most important aspect of care of the patient with suspected OSA. Most recommend continuous pulse oximetry (rather than periodic assessment of O2 saturation) but our previous columns have highlighted the problems associated with just using pulse oximetry and the false sense of security that one may develop. Very important in that light is the work of Lynn and Curry (Lynn 2011) who describe 3 patterns of unexpected in-hospital deaths and demonstrate the problems with threshold-based alarms (almost all currently used alarm systems use threshold-based principles) in detecting early deterioration. Indeed, they posit that threshold-based alarms themselves often cause us to miss signs of early deterioration. The second pattern of deterioration they note is the classic CO2 narcosis but they note many of these cases are complicated by the third pattern typical of sleep apnea. The important point is that there may be a huge difference when the patient is awake and when he/she is ...
Monitoring is probably the most important aspect of care of the patient with suspected OSA. Most recommend continuous pulse oximetry (rather than periodic assessment of O2 saturation) but our previous columns have highlighted the problems associated with just using pulse oximetry and the false sense of security that one may develop. Very important in that light is the work of Lynn and Curry (Lynn 2011) who describe 3 patterns of unexpected in-hospital deaths and demonstrate the problems with threshold-based alarms (almost all currently used alarm systems use threshold-based principles) in detecting early deterioration. Indeed, they posit that threshold-based alarms themselves often cause us to miss signs of early deterioration. The second pattern of deterioration they note is the classic CO2 narcosis but they note many of these cases are complicated by the third pattern typical of sleep apnea. The important point is that there may be a huge difference when the patient is awake and when he/she is ...
The first brain image of person with psychosis was completed as far back as 1935 using a technique called pneumoencephalography1 (a painful and now obsolete procedure where cerebrospinal fluid is drained from around the brain and replaced with air to allow the structure of the brain to show up more clearly on an X-ray picture).. Pneumoencephalogram of person with psychosis, 1935Modern brain imaging studies, investigating both changes in brain structure and changes in brain function of people undergoing psychotic episodes have shown mixed results.. A 2003 study investigating structural changes in the brains of people with psychosis showed there was significant grey matter reduction in the cortex of people before and after they became psychotic2. Findings such as these have led to debate about whether psychosis is itself neurotoxic and whether potentially damaging changes to the brain are related to the length of psychotic episode. Recent research has suggested that this is not the case3 although ...
A computational fluid dynamics (CFD) model of the cerebrospinal fluid system was constructed based on a simplified geometry of the brain ventricles and their connecting pathways. The flow is driven by a prescribed sinusoidal motion of the third ventricle lateral walls, with all other boundaries being rigid. The pressure propagation between the third and lateral ventricles was examined and compared to data obtained from a similar geometry with a stenosed aqueduct. It could be shown that the pressure amplitude in the lateral ventricles increases in the presence of aqueduct stenosis. No difference in phase shift between the motion of the third ventricle walls and the pressure in the lateral ventricles because of the aqueduct stenosis could be observed. It is deduced that CFD can be used to analyze the pressure propagation and its phase shift relative to the ventricle wall motion. It is further deduced that only models that take into account the coupling between ventricles, which feature a ...
The history of imaging the pituitary region encompasses many different modalities and has greatly evolved over the years, including plain radiographs, pneumoencephalography, angiography, CT and MRI. The pituitary gland is situated in the central ...
Background: The abdominal pannus is a well known medical condition of a large overhanging apron of skin and fat that extends well beyond the waistline. Technically the proper term is a panniculus but it is far more commonly referred to as a pannus. What defines a pannus is how large the actual overhang is.. There are five degrees of an abdominal pannus from a grade 1 that rests on the mons pubis to a grade 5 that hangs down to the knees. While no abdominal pannus is pleasant for the patient the grade 5 pannus is the most disabling. It not only obstructs the urinary stream and causes associated hygiene issues but its sheer weight makes mobility difficult. It causes tremendous strain on the back and knees and leads to early deterioration of both.. An abdominal panniculectomy procedure should not be confused with a more traditional tummy tuck. The scope of the problem being treated would indicate such but how the operation is performed and under what circumstance is also vastly different. This is ...
Anterior choroidal artery infarction secondary to occluded left internal carotid artery. The anterior choroidal artery originates from the posterior wall of the internal carotid artery between the origin of posterior communicating artery (PCOM) ...
OBJECTIVE: To study the functional accuracy of stereotactic targeting for the posteroventral pallidotomy (PVP), comparing targets chosen on magnetic resonance images (MRI), and fused MRI to computed tomographic (CT) images, with electrophysiologicall
An infant boy is brought to the emergency department due to lethargy and enlarging head circumference. The parents deny any recent infections or trauma to the patient. They report he had 2 episodes of emesis and is inconsolable. On physican exam, head circumference is larger than expected. An MRI of the head is performed, which shows aqueductal funnelling and enlargment of the lateral and third ventricles. (Congenital aqueductal stenosis) ...
The tumor cells invade the ventricular system.A- Septo-Striatal section, phase contrast (tissue slides, 1X); B- The same Septo-Striatal section: Ki-67 (red) ove
BACKGROUND AND PURPOSE: Complex CSF diseases may be underdiagnosed or poorly understood on conventional CT or MR imaging. Although intrathecal CT cisternography with water-soluble iodinated contrast medium has been used, very few studies have dealt with the intrathecal use of gadopentate dimeglumine (Gd-DTPA), though it appears superior to CT. We report our experience with the intrathecal use of Gd-DTPA for MR cisternography and ventriculography in pediatric patients referred for study and treatment of complex CSF-related diseases.. MATERIALS AND METHODS: Ten patients (range, 1 month-16 years of age) were selected after we obtained specific informed consent. Intrathecal gadolinium injection was performed via transfontanelle ventriculostomy, ventriculoperitoneal shunt reservoir, or lumbar puncture. Cases included spontaneous CSF leaks (n = 1), complex traumatic frontoethmoidal fractures with suspected CSF leak (n = 2), multiloculated congenital or acquired hydrocephalus (n = 3), intraventricular ...
The first brain image of an individual with psychosis was completed as far back as 1935 using a technique called pneumoencephalography[81] (a painful and now obsolete procedure where cerebrospinal fluid is drained from around the brain and replaced with air to allow the structure of the brain to show up more clearly on an X-ray picture).. The purpose of the brain is to collect information from the body (pain, hunger, etc.), and from the outside world, interpret it to a coherent world view, and produce a meaningful response. The information from the senses enter the brain in the primary sensory areas. They process the information and send it to the secondary areas where the information is interpreted. Spontaneous activity in the primary sensory areas may produce hallucinations, which the secondary areas misinterpret as information from the real world.. For example, a PET or fMRI scan of a person who claims they hear voices may show activation in the primary auditory cortex, or parts of the brain ...
A previous study suggested that occlusive diseases of small penetrating arteries account for most anterior choroidal artery (AChA) territory infarcts, but half of the patients did not have an echocardiogram. Cases of AChA territory infarcts associated with internal carotid artery stenosis or atrial fibrillation suggest that this hypothesis may be wrong. The aim of this study was to determine the mechanism of 16 nonselected consecutive AChA territory infarcts.. The study population consisted of 8 men and 8 women aged 17 to 89 years. They underwent a computed tomographic scan at the acute stage, Doppler ultrasonography and B-mode echotomography of the cervical arteries, bidimensional transthoracic echocardiography, and cerebral magnetic resonance imaging, replaced by a second computed tomographic scan in 3 patients. Ten patients underwent cerebral angiography. We defined the presumed cause of stroke according to the criteria used in the trial of Org 10172 in acute stroke treatment.. The presumed ...
Later, when Tim, one of the Baxley boys, learns that his aunt has troubling symptoms, "his heart began to pound as it had when he heard about his grandfather." Soon he "felt the cold sweat of certainty…. He barely noticed the sun coming up." Robert Edwards, a progenitor of IVF, is "flamboyant"; so, a page later, is the Russian geneticist and embryologist Yury Verlinsky. Kolatas attempts to be colorful can drain her prose of authentic color.. The subtitle of the book is "A Story of Hope, a Familys Genetic Destiny, and the Science That Rescued Them." Kolata tends to take an upbeat, even celebratory tone, but Amanda is looking at an early deterioration and horrific death, which doesnt exactly constitute a story of hope or a rescue by science. And what of Holly and her children, who may well be marching toward a similar agony? Kolata writes that "science presented the Baxley family members with a responsibility theyd never asked for or anticipated-but that each took on in their own daring ...
Synonyms for third ventricle in Free Thesaurus. Antonyms for third ventricle. 1 word related to third ventricle: ventricle. What are synonyms for third ventricle?
Nuclear ventriculography is a test that uses radioactive materials called tracers to show the heart chambers. The procedure is noninvasive. The instruments DO NOT directly touch the heart.
Hollow muscle with 4 chambers surrounded by thick walls of tissue (septum). The atria are the 2 upper chambers; the ventricles are the 2 lower chambers.
Computed tomography of 30 patients presenting acutely with benign intracranial hypertension was compared with that of 30 normal controls matched for age and sex. Qualitative and quantitative assessments showed smaller cranial CSF spaces in the cases of benign intracranial hypertension, suggesting that cerebral swelling is involved in the pathogenesis of benign intracranial hypertension.
TY - CHAP. T1 - Complications of ventriculo-peritoneal shunt. AU - Tseng, D. W.. AU - Liu, M. Y.. AU - Tsai, S. H.. PY - 1983. Y1 - 1983. N2 - The ventriculo-peritoneal shunt is a well established method in the treatment of primary and secondary hydrocephalus. Seventy ventriculo-peritoneal shunt operations were performed on fifty patients encountered at Tri-Service General Hospital during the last 7 years (1976-1982). The underlying causes of hydrocephalus were: brain tumor (25 cases), congenital hydrocephalus (16 cases), post-traumatic hydrocephalus (6 cases) and normal pressure hydrocephalus (3 cases). Twelve of the 50 patients (24%) developed post-operative complications. The complications in this series were: wound infection (5 cases), obstruction of the ventricular catheter (4 cases), disconnection of the reservoir connector (2 cases) and shortening of the peritoneal catheter (1 case). Among these 12 cases, 8 underwent two or more revisions of the shunt. The remaining 4 cases with ...
FINAL DIAGNOSIS. Chordoid glioma of the third ventricle WHO 2007 grade II. DISCUSSION. Chordoid glioma is a rare tumor of the third ventricle, firstly proposed as a distinct entity by Brat et al in 1998 (1). To our knowledge (December, 2011), 74 cases (including our case) have been reported. The tumor predominantly occurs in adult women with a female to male ratio of 1.6 to 1 and the mean age at presentation at 45.25 years of age. Most patients have headache, visual symptoms, and memory disturbances. Other symptoms are lethargy, somnolence, endocrine disturbance such as hypothyroidism and diabetes insipidus, and symptoms caused by space occupying lesion and obstructive hydrocephalus are also observed in some patients. Chordoid glioma mainly locates at the third ventricle or nearby structures, hence the name "Chordoid glioma of the third ventricle". Unusual locations without third ventricular association that have been reported are parieto-temporal region (3) and thalamic pulvinar area (5). The ...
White cerebellum sign a reversal of the normal gray/white matter densities and a relatively increased density of the thalami, brainstem and cerebellum; it is also known as dense cerebellum sign or reversal sign. On Computed Tomography, it is seen as hypodensity of the supratentorial brain with reverse increased attenuation of the cerebellum. This ominous sign is a poor prognostic indicator for patients with brain injury. We document a rare case of white cerebellum sign occurring in an eight year old girl who presented to the emergency department with signs of raised intracranial pressure following Ventriculo-peritoneal shunt revision. Our patient improved significantly after resuscitation with mannitol, she was discharged from hospital with an improved Glasgow Coma Score. Our case presents a new opportunity for management of patients with white cerebellar sign. Mannitol is an antioxidant that decrease H|sub|2|/sub|O|sub|2|/sub| by upregulating catalases. It is postulated to have played a role in the
The brain ventricular system is essential for neurogenesis and brain homeostasis. Its neuroepithelial lining effects these functions, but the underlying molecular pathways remain to be understood. We found that the K channels expressed in neuroepithelial cells determine formation of the ventricular system. The phenotype of a novel zebrafish mutant characterized by denudation of neuroepithelial lining of the ventricular system and hydrocephalus is mechanistically linked to Kcng4b, the homologue of the "silent" voltage-gated K channel alpha-subunit Kv6.4. We demonstrated that Kcng4b modulates proliferation of cells lining the ventricular system and maintains their integrity. The gain of Kcng4b function reduces brain ventricles. Electrophysiological studies supported an idea that Kcng4b mediates its effects via an antagonistic interaction with Kcnb1, the homologue of the electrically active delayed rectifier K channel subunit Kv2.1. The mutation of kcnb1 reduces the size of ventricular system and ...
Mechanisms of progression of chronic kidney disease (CKD), a major health care burden, are poorly understood. EGFR stimulates CKD progression, but the molecular networks that mediate its biological effects remain unknown. We recently showed that the severity of renal lesions after nephron reduction varied substantially among mouse strains and required activation of EGFR. Here, we utilized two mouse strains that react differently to nephron reduction - FVB/N mice, which develop severe renal lesions, and B6D2F1 mice, which are resistant to early deterioration - coupled with genome-wide expression to elucidate the molecular nature of CKD progression. Our results showed that lipocalin 2 (Lcn2, also known as neutrophil gelatinase-associated lipocalin [NGAL]), the most highly upregulated gene in the FVB/N strain, was not simply a marker of renal lesions, but an active player in disease progression. In fact, the severity of renal lesions was dramatically reduced in Lcn2-/- mice. We discovered that Lcn2 ...
35 year old obese female. Normal vision and headache. Opening pressure was 30 cm water (normal 10-20). Nerve swelling responded to diamox ...
In our prospective study cohort, membranous obstruction was demonstrated in 92 (68.6%) of 134 cases of hydrocephalus with the use of 3D-CISS at 3T. Intraventricular membranous obstruction is the most common pathologic finding to cause noncommunicating hydrocephalus (85/114 total noncommunicating cases). However, except in the cerebral aqueduct region, conventional images are insensitive in detection of obstructive membranes in the CSF pathway. In this study, they were only demonstrated in 57 (36.3%) of 157 obstruction sites with the use of conventional imaging. In choosing the most appropriate treatment technique and to assess the prognosis in hydrocephalus, the classification of hydrocephalus and demonstration of obstruction, if it exists, are of significant importance.20,33 The terminology and the classification of hydrocephalus are still a matter of debate and are not the aims of our study. However, it is obvious that we need accurate neuroimaging techniques to demonstrate CSF pathways ...
During the last four years we have employed a ventriculo-peritoneal shunt with valve in 110 patients, including 79 hydrocephalic children. The results have shown that physically both the valve shunts draining into the peritoneum or into the blood stream work similarly. In both instances reoperations have not been frequent, as it was the case when no valves were used in the peritoneal shunts. On the other hand, by using ventriculo-peritoneal shunts not only pulmonary microembolism is prevented but also infections involving the draining system are less severe and more easily controlled than those occurring in the ventriculo-atrial shunts.. ...
what are procedures to diagnose a colloid cyst? can ct scans or mri miss a colloid cyst? is there blood work or other tests that can give a clue that you have a cyst or tumor somewhere in the body
what are procedures to diagnose a colloid cyst? can ct scans or mri miss a colloid cyst? is there blood work or other tests that can give a clue that you have a cyst or tumor somewhere in the body
Colloid cyst brain tumor medical cases overviews. Provided by Farhad Limonadi MD. A top specialist neurosurgeon practicing in Palm Springs, Palm Desert and Rancho Mirage areas of Southern California. Providing special medical services for treatment and recovery from neck pain, back pain and brain tumors.
Tytuł projektu: Rozbudowa i przekształcenie bibliograficznej bazy danych AGRO w bazę bibliograficzno-abstraktową z wykorzystaniem oprogramowania YADDA. Nr umowy: POIG 02.03.02-00-031/09 (okres realizacji 2009-2013 ...
Positive T wave overshoot as a sign of ventricular enlargement.: A consecutive series of 86 patients with an inverted T wave showing terminal positivity (oversh
Danazol and benign intracranial hypertension. Shah, Ajay; Roberts, Tim; McQueen, I.N.F.; Graham, J.G.; Walker, Kate // British Medical Journal (Clinical Research Edition);5/23/1987, Vol. 294 Issue 6583, p1323 Focuses on the benign intracranial hypertension in patients treated with danazol. Three case reports on danazol prescription; Detection of abnormalities after taking danazol; Comment on danazol treatment on patient with benign intracranial hypertension. ...
With the advent of the aging society, dementia becomes the focus of common people. As for the neurodegeneration dementia, no disease modifying treatments have been discovered. Idiopathic normal pressure hydrocephalus (iNPH) is considered as one of reversible dementia, which can be hint by the surgery. In addition, dementia of iNPH is the typical subcortical dementia. Therefore exploring the pathogenic mechanism is conducive to the early diagnosis and treatment. This research is to monitor the changing of iNPHGS, cognitive function, walking ability as well as brain construction imaging and neural network before and after ventriculo-peritoneal shunting in order to demonstrate the pathogenesis of triads. In the process, the supplementary test, for instance, CSF tap test, will be validated the predictive value ...
Spontaneous intracerebral haemorrhage: a clinical review.: This article provides a clinical overview of spontaneous intracerebral haemorrhage, focusing on clini
Soon after Yaz was approved in 2006, it quickly become one of the most popular birth control pills of all time. The success rapidly faded after researchers found that drospirenone, the progestin in Yaz, was associated with up to a three-fold increased risk of blood clots compared to other progestins.. The problem with blood clots is that they can potentially travel to the brain and cause a stroke. In rare cases, blood clots in the brain can cause secondary intracranial hypertension. Similar to BIH, this condition causes high pressure inside the skull due to elevated levels of cerebrospinal fluid. Both conditions cause the same physical symptoms and can become chronic. ...
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Colloid cysts of the third ventricle are benign epithelial lined cysts with characteristic imaging features. Although usually asymptomatic, they can rarely present with acute and profound hydrocephalus. Classically these cysts are identified as ...
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Post-traumatic hydrocephalus (PTH) is potentially under-diagnosed and under-treated, generating the need for a more efficient diagnostic tool. We aim to report CSF dynamics of patients with post-traumatic ventriculomegaly. We retrospectively analysed post-traumatic brain injury (TBI) patients with ventriculomegaly who had undergone a CSF infusion test. We calculated the resistance to CSF outflow (Rout), AMP (pulse amplitude of intracranial pressure, ICP), dAMP (AMPplateau-AMPbaseline) and compensatory reserve index correlation coefficient between ICP and AMP (RAP). To avoid confounding factors, included patients had to be non-decompressed or with cranioplasty | 1 month previously and Rout | 6 mmHg/min/ml. Compliance was assessed using the elasticity coefficient. We also compared infusion-tested TBI patients selected for shunting versus those not selected for shunting (consultant decision based on clinical and radiological assessment and the infusion results). Finally, we used data from a group of
This category contains sites about the rare Neurological Condition called Intracranial Hypertension (also known as Pseudotumor Cerebri, Benign Intracranial Hypertension and Idiopathic Intracranial Hypertension).
The objective of this work is to quantify age-related differences in the characteristics and coupling of cerebral arterial inflow and cerebrospinal fluid (CSF) dynamics. To this end, 3T phase-contrast magnetic resonance imaging blood and CSF flow data of eleven young (24 ± 3 years) and eleven elderly subjects (70 ± 5 years) with a comparable sex-ratio were acquired. Flow waveforms and their frequency composition, transfer functions from blood to CSF flows and cross-correlations were analyzed. The magnitudes of the frequency components of CSF flow in the aqueduct differ significantly between the two age groups, as do the frequency components of the cervical spinal CSF and the arterial flows. The males aqueductal CSF stroke volumes and average flow rates are significantly higher than those of the females. Transfer functions and cross-correlations between arterial blood and CSF flow reveal significant age-dependence of phase-shift between these, as do the waveforms of arterial blood, as well as ...
Ventriculo-peritoneal shunting is a surgical treatment for hydrocephalus. Complications of this procedure are not well described in dogs. The most common complication in humans is infection, which can be fatal if not diagnosed and treated quickly. We describe the magnetic resonance (MR) imaging characteristics of a shunt-associated cerebral infection in a dog. The MR features of the infection included hyperintensity of the lining of the ventricular system visible on a T2-weighted FLAIR sequence and marked linear contrast enhancement of the ependymal layer on T1-weighted sequences, similar to that described in people. ...
Recognized as a pioneer in his field, Phoenix, AZ, brain surgeon Dr. Peter Nakaji can remove colloid cysts with minimally invasive keyhole brain surgery.
Intraventricular hemorrhage (IVH) is bleeding inside or around the ventricles in the brain. The ventricles are the spaces in the brain that contain the cerebral spinal fluid.
Intraventricular hemorrhage (IVH) is bleeding inside or around the ventricles in the brain. The ventricles are the spaces in the brain that contain the cerebral spinal fluid.
Definition : Valves that usually connect an intracranial catheter to another catheter that drains the cerebrospinal fluid in the peritoneum or the left atrium of the heart. The whole combination of the intracranial catheter, the peritoneal or atrial cardiac catheter, and the valve is known as a ventriculoperitoneal or ventriculoatrial shunt, respectively. The shunt may include also a reservoir. UMDC code : 17090 ...
The ventricular spaces in the various subdivisions of the brain reflects the fact that the ventricles are the adult derivatives of the open space of the embryonic neural tube. The two lateral ventricles, situated within the cerebrum, are relatively large and C-shaped, and roughly wraps around the dorsal aspects of the basal ganglia. In the lateral ventricles of the embryo the successive generation of neurons gives rise to the 6-layered structure of the neocortex, constructed from the inside out during development. ...
63740 Which is the appropriate way for a general surgeon to submit charges for this--62223-62 (Creation of shunt; ventriculo-peritoneal, -pleural, other terminus) , or 49324 (…Laparoscopy, surgical; with insertion of intraperitoneal cannula or catheter, permanent)? The description of 62223 in Coders Desk Reference is not especially helpful. I know what my inclination would be, but Id like a really concise explanation that I can show to other people. I have never been able to find a satisfactory answer to this question. / KPollockVentriculoperitoneal shunt placementPosted: Aug 3 2010, 9:17 PMCPT 62223 includes placing the ventricular (brain) portion as well as the peritoneal (abdomen) catheter of the shunt. So if two different surgeons perform different parts of the same CPT code, as in the scenario you suggest, then each reports 62223-62. Kim Pollock, RN, MBA, CPC KarenZupko & Associates, Inc. www.karenzupko.com / Which is the appropriate way for a general surgeon to submit charges for ...
The third ventricle is one of the four ventricles in the brain that communicate with one another. As with the other ventricles of the brain, it is filled with cerebrospinal fluid, which helps to protect the brain from injury and transport nutrients and waste.
Cerebrospinal fluid (CSF)-contacting neurons are sensory-type cells sending ciliated dendritic process into the CSF. Some of the prosencephalic CSF-contacting neurons of higher vertebrates were...
An analysis is presented of 79 children under the age of 15 years suffering from benign intracranial hypertension. The commonest predisposing factor was chronic middle-ear disease which was found in 39%. Headache was the presenting symptom in 57% followed in order of frequency by earache, blurred or double vision, and vomiting. Papilloedema was present at some stage in 95%. Contrast radiography was regarded as mandatory in order to exclude a space-occupying lesion, the procedure of choice being ventriculography. A case is made for considering, as alternative procedures, echoencephalography or angiography. Treatment was limited to lumbar puncture and the prognosis was uniformly good. Nevertheless vigilance must be maintained because of the risk of permanent damage to vision from persistent papilloedema.. ...
Benign Intracranial Hypertension (BIH) may be caused, at least in part, by intracranial sinus thrombosis. Thrombosis is normally due to derangements in blood coagulation cascade which may predispose to abnormal clotting activation or deficiency in natural inhibitors control. The aim of the study is to examine the strength of the association between risk factors for thrombosis and BIH. The incidence of prothrombotic abnormalities among a randomly investigated cohort of 17 patients with BIH, was compared with 51 healthy subjects matched for sex, age, body mass index, height and social background. The number of subjects with protein C deficiency was significantly higher in patients than in controls (3 vs 1, p | .001; Fisher Exact Test). Moderate to high titers of anticardiolipin antibodies (β2-Glycoprotein type I) were found in 8 out of 17 patients. Increased plasma levels of prothrombin fragment 1+2, fibrinopeptide A (FPA), and PAI-1 were demonstrated in patients group (5.7 ± 1.15 nM vs 0.45 ± 0.35 nM
Authors: Goldberg EM.. A previously healthy 7-month-old male presented to the emergency department with fever and a bulging anterior fontanelle. A computed tomographic scan of the head suggested mild communicating hydrocephalus. Lumbar puncture was performed, which revealed a normal cerebrospinal fluid (CSF) cell count and glucose concentration, but a markedly elevated opening pressure. DNA polymerase chain reaction for herpes simplex virus performed on CSF was negative; CSF bacterial cultures were without growth. DNA polymerase chain reaction for human herpes virus 6 was strongly positive in serum. Fever and bulging fontanelle resolved within 24 hours. A presumptive diagnosis of transient intracranial hypertension of infancy was made, a form of benign idiopathic intracranial hypertension that mimics the presentation of serious intracranial pathology.. ...
There are currently no human or mouse genes associated with this disease in the MGI database. Synonyms: benign intracran. hypt.; benign intracran. hypt.; benign intracranial hypertension; benign intracranial hypertension (disorder); idiopathic intracranial hypertension; Pseudotumor cerebri
Hydrocephalus. Hydrocephalus is a condition in which there is either an obstruction to the flow of CSF within the ventricular system or subarachnoid space (noncommunicating hydrocephalus) either due to intraventricular mass lesions or to external compression or a problem with reabsorption of CSF (communicating hydrocephalus). The type of hydrocephalus that occurs with SAH is communicating hydrocephalus. Hydrocephalus can be classified as acute, subacute, or delayed. The profiles for each are different and are briefly discussed here. With SAH, hydrocephalus develops as a result of blood in the CSF, which plugs the arachnoid villi, thus interfering with the reabsorption of CSF. Diagnosis is established on the basis of CT findings, which will reveal dilated ventricles with blood within the ventricles.. Signs and Symptoms/Treatment. The following summarizes the signs and symptoms of the three types of hydrocephalus, as well as the appropriate treatment for each.. ACUTE. ...
The unique occurrence of benign intracranial hypertension (pseudotumor cerebri) in confirmed lupus erythematosus was seen in a 21-year-old woman. There was a mo
Colloid cysts are benign slow-growing cystic lesions located on the roof of the third ventricle that usually present with symptoms related to gradual rise of intracranial pressure. They mostly remain...
Evidence-based recommendations on lumbar subcutaneous shunt for treating communicating hydrocephalus and benign intracranial hypertension
Inferior approaches: Inferior approaches are used for tumors of the trigone and temporal horn of the lateral ventricles. They are useful when the tumor is fed by the anterior choroidal artery or its branches. A cortical incision will be necessary irrespective of the approach chosen. Consequently, many important structures such as optic tracts, medial hypocampus, brainstem, and eloquent cortical areas must be respected. The temporal transcortical (middle temporal gyrus) approach, the parieto-temporal approach, the anterior temporal approach, and the subtemporal approach are examples in this category ...
colloid cyst diet. Thyroid disease treatment with supplements, diet, vitamins .... We provides a free resource to help you make healthy food and lifestyle choices for you and your family.
The clinical and pathological spectrum of brain-stem vascular malformations. Long-term course simulates multiple sclerosis. Three cases of brain-stem vascular malformation with progressive and fluctuating clinical courses of longer than one year were studied. One patient with a rare brain-stem arteriovenous ...
Longitudinal whole-brain atrophy and ventricular enlargement in nondemented Parkinsons disease. . Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.
Abstract: : Purpose:To describe two boys with intraocular retinoblastoma with papilledema and benign intracranial hypertension and no other medical condition. Methods:Case 1 was diagnosed with bilateral retinoblastoma at 2.5 months of age. The patient was treated by enucleation of one eye and laser and cryotherapy of the other. Papilledema was seen at 6 months of age. Case 2 was diagnosed with unilateral retinoblastoma at 13 months of age. The patient was treated by enucleation of the involved eye. Papilledema was seen at the time of presentation in the other eye. Both patients were healthy males. They never had any constitutional symptoms or other medical problems and never received either chemotherapy or radiotherapy. Lumbar puncture and MRI of the head and orbits were performed in each case because of their papilledema. Results:The initial opening pressure on lumbar puncture in Case 1 was 42 cm H2O and in Case 2 was 33 cm H2O. MRI and CSF cytology were negative in both cases. In Case 1, the ...
Looking for online definition of radionuclide ventriculography in the Medical Dictionary? radionuclide ventriculography explanation free. What is radionuclide ventriculography? Meaning of radionuclide ventriculography medical term. What does radionuclide ventriculography mean?
We describe a case of recurrent coccidioidal meningitis in which a fungal biofilm on the tip of ventriculo-peritoneal shunt tubing was likely responsible for a 4-year persistence of Coccidioides immitis, despite the patients taking an adequate dosage of fluconazole. Fungal biofilms should be considered as a cause for treatment failure and fungal persistence, especially when artificial prostheses or indwelling catheters are present.
A colloid cyst is a tumor containing gelatinous material in the brain. It is almost always found just posterior to the foramen of Monro in the anterior aspect of the third ventricle, originating from the roof of the ventricle. Because of its location, it can cause obstructive hydrocephalus and increased intracranial pressure. Colloid cysts represent 0.5-1% of intracranial tumors. Symptoms can include headache, vertigo, memory deficits, diplopia, behavioral disturbances and in extreme cases, sudden death. Intermittency of symptoms is characteristic of this lesion. Untreated pressure caused by these cysts can result in brain herniation. Colloid cyst symptoms have been associated with 4 variables: cyst size, cyst imaging characteristics, ventricular size, and patient age. The developmental origin is unclear, though they may be of endodermal origin, which would explain the mucin-producing, ciliated cell type. These cysts can be surgically resected, and opinion is divided about the advisability of ...
A 26-year-old woman gave a 2-year history of intermittent and worsening headaches. MR scan of brain showed a 1.1 cm cystic, peripherally enhancing lesion in the third ventricle, causing obstructive hydrocephalus at the interventricular foramen of Monro (figure 1A, B). She underwent endoscopic intraventricular resection through a left frontal burr hole. Pathological examination confirmed a colloid cyst.. ...
Atrial shunt revision surgeries are sometimes difficult due to venous occlusion and neck scarring. A direct approach guided by venography facilitates exposure and guarantees accurate placement of the distal catheter. Five patients with complicated histories of shunt malfunction were treated using an endoscope-assisted technique. The distal end of an atrial catheter was advanced into the atrium after having been connected to a venous catheter of a slightly smaller diameter than the one previously advanced from the femoral vein through the atrium. Once the position of the atrial catheter was confirmed fluoroscopically, the venous catheter was detached and removed. No complications developed in any patient. This endoscope-assisted technique offers three advantages: it demonstrates the patency of the jugular vein through venography, facilitates identification of the internal jugular vein in the neck, and provides a quick way to confirm that the distal end of the atrial catheter has been placed ...
We describe herein a novel life-size phantom model of the intracranial cavity and its validation. The cerebrospinal fluid (CSF) domains including ventricular, cysternal, and subarachnoid spaces were derived via magnetic resonance imaging. Brain mechanical properties and cranio-spinal compliance were set based on published data. Both bulk and pulsatile physiologic CSF flow were modeled. Model validation was carried out by comparisons of flow and pressure measurements in the phantom with published in vivo data of healthy subjects. Physiologic intracranial pressure with 10 mmHg mean and 0.4 mmHg peak pulse amplitude was recorded in the ventricles. Peak CSF flow rates of 0.2 and 2 ml/s were measured in the cerebral aqueduct and subarachnoid space, respectively. The phantom constitutes a first-of-its-kind approach to modeling physiologic intracranial dynamics in vitro. Herein, we describe the phantom design and manufacturing, definition and implementation of its operating parameters, as well as the ...
A 17-year-old girl reported a 2-week history of progressively worsening daily headaches most prominent on waking in the morning, and 1-week history of vomiting and diplopia. She had been previously well except for a ventriculoperitoneal shunt inserted at the age of 5 months for aqueduct stenosis. On examination, her body mass index was 24 kg/m2. She was afebrile. Her visual acuity was 6/6 on the right and 6/9 on the left, while her visual perimetry was normal. She had a left lateral rectus palsy and unilateral … ...
ICH obstruction of third ventricle was defined as third ventricle compression on 1 or more axial computed tomography slices visually impeding cerebral spinal fluid flow. If the third ventricle was casted with IVH, it was scored as such. Multivariable logistic regression analyses were used to determine whether obstruction of the third ventricle predicts poor functional outcomes defined as modified Rankin score (mRS) 4-6, higher mRS, and mortality at 180 days. Models were adjusted for thalamic ICH location, ICH volume, IVH volume, age, hydrocephalus, baseline Glasgow coma scale, and percentage of low cerebral perfusion pressures during treatment.. ...
BACKGROUND: Developing novel therapeutic agents to treat amyotrophic lateral sclerosis (ALS) has been difficult due to multifactorial pathophysiologic processes at work. Intrathecal drug administration shows promise due to close proximity of cerebrospinal fluid (CSF) to affected tissues. Development of effective intrathecal pharmaceuticals will rely on accurate models of how drugs are dispersed in the CSF. Therefore, a method to quantify these dynamics and a characterization of differences across disease states is needed. METHODS: Complete intrathecal 3D CSF geometry and CSF flow velocities at six axial locations in the spinal canal were collected by T2-weighted and phase-contrast MRI, respectively. Scans were completed for eight people with ALS and ten healthy controls. Manual segmentation of the spinal subarachnoid space was performed and coupled with an interpolated model of CSF flow within the spinal canal. Geometric and hydrodynamic parameters were then generated at 1 mm slice intervals along the
The authors report on a patient with Tersons syndrome after endoscopic colloid cyst resection of the third ventricle. This never reported complication in neuroendoscopy is explained by an increased intracranial pressure due to rinsing. Increased rin
The right and left lateral ventricles are structures within the brain that contain cerebrospinal fluid, a clear, watery fluid that provides cushioning for the brain while also helping to circulate nutrients and remove waste. Along with the structures known as the third ventricle and the fourth ventricle, the lateral ventricles
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Above the ventricles are smaller chambers (sections) of the heart called atria. They contract (squeeze) during the last part of diastole, and send blood down to the larger, lower ventricles. The atria have valves that close after this so blood cannot flow backward into the atria. When the ventricles are filled and the valves to the atria are closed, the ventricles contract. So, the atria and ventricles contract in sequence. The left and right atria feed blood into the ventricles. Then, the left and right ventricles contract. The right ventricle pumps blood to the lungs, and the left ventricle pumps blood to the rest of the body. This is why we have a pulse. ...
Definition of median aperture of fourth ventricle. Provided by Stedmans medical dictionary and Drugs.com. Includes medical terms and definitions.
At the conclusion of this lecture, those in the audience should be able to:. Understand the need to counsel patients prior to skull base surgery regarding the possibility of developing a cerebrospinal fluid fistula, and its risks.. Discuss the wound closure strategies available to prevent a cerebrospinal fluid fistula after skull base surgery. Describe the importance of the early detection of a cerebrospinal fluid fistula after skull base surgery. Understand the non-operative and operative management of a cerebrospinal fluid fistula after skull base surgery ...
Looking for Catskill Aqueduct? Find out information about Catskill Aqueduct. see Ashokan Reservoir Ashokan Reservoir , 13 sq mi , SE N.Y., completed 1912. It is supplied by the Esopus and Schoharie watersheds and provides part of New... Explanation of Catskill Aqueduct
OBJECT The authors review their ventriculoperitoneal (VP) shunt revisions over a 3-year period to determine the rate of intraventricular hemorrhage (IVH) and su
Mark Berry was 17 in 1976 when he and a friend stole some dynamite and blew apart a gate that regulated the flow of water to the aqueduct.
A precautionary quarantine that had been in place on a barn at Aqueduct for a week was lifted Saturday after further tests taken on a deceased horse were negative for equine herpesvirus.
Michael Dubbs Alysweep overcame an early slip, sweeping outside of favored Philadelphia Jim and drawing off to a 1 ½-length victory in the $79,800 Fred Cappy Capossela for 3-year-olds Monday at Aqueduct.
Black American? African American? A label is just a label. At the end of the day, its a preference. To wholesale insist on one term over the other is futile.
EDITORIAL Integrating Research on Racial and Ethnic Disparities in Health Care Over Place and Time Alan M. Zaslavsky, PhD,* and John Z. Ayanian, MD, MPP* Black Americans have substantially higher rates
OPINION | The U.S. medical establishment has a long legacy of discriminating and exploiting black Americans, this is one reason for the distrust.
Biology Assignment Help, How different are the heart chambers, Q. Concerning the thickness of their walls how different are the heart chambers? The ventricle walls are thicker than the atrium walls since ventricles are structures responsible for the pumping of the blood to the tissues or lungs. Their muscle
A cheerleader gets a surprising diagnosis after a fall, but is back on her feet in no time after surgery to remove a colloid cyst
What is a nuclear ventriculogram? A nuclear ventriculogram (technically called radionuclide ventriculography) is a test that uses a special camera to take a series pictures of the pumping chambers (ventricles) of the heart to check their size an
search results: junction of mesencoel and rhombencoel (fourth ventricle) Search 15-66 15-73 15-77 16-85 16-97 16-101 16-109 17-78 17-127 ...
Endoscopic third ventriculostomy (ETV) is a surgical procedure for treatment of hydrocephalus in which an opening is created in the floor of the third ventricle using an endoscope placed within the ventricular system through a burr hole. This allows the cerebrospinal fluid to flow directly to the basal cisterns, bypassing the obstruction. Specifically, the opening is created in the translucent tuber cinereum on the third ventricular floor. The ETV procedure is used as an alternative to a cerebral shunt mainly to treat certain forms of noncommunicating obstructive hydrocephalus (such as aqueductal stenosis), but since the ETV was introduced as an accepted treatment modality the range of etiologies for which it is used has grown significantly. Whereas at first it was almost exclusively performed in patients with noncommunicating obstructive hydrocephalus (e.g. aqueductal stenosis or intracerebral tumor), in the present day patients with communicating obstructive hydrocephalus (e.g. post ...
Objective: To present endoscopic techniques used as a complimentary tool in the treatment of infantile posthemorrhagic hydrocephalus. Methods: Three cases of preterm-low-birth weight infants with intraventricular hemorrhage and ventricular distention are presented. In addition to reservoir placement, the treatment included endoscopic ventricular irrigation and ventriculostomy and/or aqueductoplasty in order to treat hydrocephalus and, if possible, avoid the placement of a shunt.. Results: In one patient hydrocephalus was successfully treated by endoscopic ventricular irrigation and third ventriculostomy. No shunt was necessary in this patient. In the second patient an isolated fourth ventricle could be treated by ventricular irrigation and aqueductal stenting. Third ventriculostomy was only temporarily successful. A single ventriculo-peritoneal shunt was necessary. The third patient needed a ventriculo-peritoneal shunt after ventricular irrigation and third ventriculostomy were only temporarily ...
Walter Freman also attended the Congress where he presented his research findings on cerebral ventriculography. Freeman, who ... Cerebral Angiography and Egas Moniz. American Journal of Roentgenology. 1992;359(2):364.[permanent dead link] ... A psychosurgical chapter in the history of cerebral localization: the six cases of Gottlieb Burkhardt. In: Code, Christopher; ... "cerebral mythology."[113] At the same meeting the Parisian psychiatrist, Paul Courbon, stated he could not endorse a surgical ...
Angiography throughout the cardiovascular system, including cerebral and peripheral arteriography, coronary arteriography and ... ventriculography, pediatric angiocardiography, selective visceral arteriography and aortography, peripheral venography ( ...
... air ventriculography, myelography etc. was established in 1954 Child guidance clinic in 1950 Rural mental health clinic at ... use of Lithium in 1952 and chlorpromazine in 1953 A very modern radiology department with facility for sophisticated cerebral ...
... cerebral angiography MeSH E01.370.350.700.560.190 --- cerebral ventriculography MeSH E01.370.350.700.560.260 --- ... cerebral angiography MeSH E01.370.376.560.190 --- cerebral ventriculography MeSH E01.370.376.560.260 --- echoencephalography ... ventriculography, first-pass MeSH E01.370.370.065 --- angioscopy MeSH E01.370.370.120 --- blood circulation time MeSH E01.370. ... radionuclide ventriculography MeSH E01.370.350.710.715.710.350 --- gated blood-pool imaging MeSH E01.370.350.710.715.710.950 ...
Angiography Aortography Cerebral angiography Coronary angiography Lymphangiography Pulmonary angiography Ventriculography Chest ...
He also refined the techniques of ventriculography, reviewed the surgical treatment of cerebral aneurysms, experimented with ...
Uptake of SPECT agent is nearly 100% complete within 30 to 60 seconds, reflecting cerebral blood flow (CBF) at the time of ... In 1918 the American neurosurgeon Walter Dandy introduced the technique of ventriculography. X-ray images of the ventricular ... In 1927 Egas Moniz introduced cerebral angiography, whereby both normal and abnormal blood vessels in and around the brain ... SPECT provides a "snapshot" of cerebral blood flow since scans can be acquired after seizure termination (so long as the ...
in phase contrast MRA studies have quantified cerebral blood flow (CBF) in vivo and suggests that CBF is abnormally elevated in ... Dandy had required ventriculography, but Smith replaced this with computed tomography. In a 2001 paper, Digre and Corbett ... An MR venogram is also performed in most cases to exclude the possibility of venous sinus stenosis/obstruction or cerebral ... These stenoses can be more adequately identified and assessed with catheter cerebral venography and manometry. Buckling of the ...
As a result, cerebral angiography remains an essential part of the neurosurgeon's diagnostic imaging armamentarium and, ... Though not usually a painful procedure, ventriculography carried significant risks to the patient under investigation, such as ... Dandy also observed that air introduced into the subarachnoid space via lumbar spinal puncture could enter the cerebral ... In 1918 the American neurosurgeon Walter Dandy introduced the technique of ventriculography whereby images of the ventricular ...
... described in detail the cerebral scleroses, during whose research he performed many cerebral transplants (brain grafts) between ... He also contributed novel techniques for neurological diagnosis: he refined iodine-contrasted ventriculography, called ... living rabbits; and histologically reclassified the cerebral tumors and the inflammations of the innermost brain envelope ( ...
Ventriculography and pneumoencephalography allowed neurosurgeons to accurately identify the location and size of tumors and ... "cerebral ventriculoscopy"), in 1925 sectioning the trigeminal nerve at the brainstem to treat trigeminal neuralgia, in 1928 ... In 1918, the year that he finished his residency, he published the paper on air ventriculography. The importance of this ... In 1918 and 1919 Dandy published his landmark papers on air ventriculography and the associated technique of ...
Historically, the gold standard for measurement of the ejection fraction is ventriculography[citation needed]. In a healthy 70- ... which ejects blood via the aortic valve into the cerebral and systemic circulation (LVEF). EF is essentially a ratio; a ... ventriculography, gated SPECT and radionuclide angiography (MUGA) scanning. A MUGA scan involves the injection of a ...
Bleton, H; Perera, S; Sejdic, E (2016). "Cognitive tasks and cerebral blood flow through anterior cerebral arteries: a study ... Radionuclide ventriculography. *Radionuclide angiography. *Radioisotope renography. *Sestamibi parathyroid scintigraphy. * ... Gender-related cognitive styles determined using Fourier analysis of mean cerebral blood flow velocity in the middle cerebral ... Each basal cerebral artery of the circle of Willis gives origin to two different systems of secondary vessels. The shorter of ...
Ventriculography Radionuclide ventriculography. Cardiac catheterization/Coronary catheterization. Cardiac CT. Cardiac PET. ...
Ventriculography Radionuclide ventriculography. Cardiac catheterization/Coronary catheterization. Cardiac CT. Cardiac PET. ... Cerebral angiography. *Pneumoencephalography. *Echoencephalography/Transcranial Doppler. *Magnetic resonance imaging of the ...
The cerebral blood flow (CBF) corresponds to the consumed glucose differently in different brain regions. Initial results show ... Radionuclide ventriculography. *Radionuclide angiography. *Radioisotope renography. *Sestamibi parathyroid scintigraphy. * ... This technique relies on the fact that cerebral blood flow and neuronal activation are coupled. When an area of the brain is in ... Mosso's manuscripts do not provide direct evidence that the balance was really able to measure changes in cerebral blood flow ...
Ventriculography Radionuclide ventriculography. Cardiac catheterization/Coronary catheterization. Cardiac CT. Cardiac PET. ...
Angiography of the leg, heart and cerebral vessels.. *Placement of a PICC (peripherally inserted central catheter) ... Radionuclide ventriculography. *Radionuclide angiography. *Radioisotope renography. *Sestamibi parathyroid scintigraphy. * ...
Ventriculography Radionuclide ventriculography. Cardiac catheterization/Coronary catheterization. Cardiac CT. Cardiac PET. ... Belgian Cerebral Resuscitation Study Group". Resuscitation. 26 (1): 47-52. doi:10.1016/0300-9572(93)90162-J. PMID 8210731.. ... The Cerebral Resuscitation Study Group". Resuscitation. 17 Suppl (Suppl S55-69): S55-69, discussion S199-206. doi:10.1016/0300- ... Cerebral performance category (CPC scores) are used as a research tool to describe "good" and "poor" outcomes. Level 1 is ...
Radionuclide ventriculography. *Radionuclide angiography. *Radioisotope renography. *Sestamibi parathyroid scintigraphy. * ...
Ventriculography Radionuclide ventriculography. Cardiac catheterization/Coronary catheterization. Cardiac CT. Cardiac PET. ...
March 1999). "In vivo mapping of cerebral acetylcholinesterase activity in aging and Alzheimer's disease". Neurology. 52 (4): ... Radionuclide ventriculography. *Radionuclide angiography. *Radioisotope renography. *Sestamibi parathyroid scintigraphy. * ... Journal of Cerebral Blood Flow and Metabolism. 20 (3): 423-451. doi:10.1097/00004647-200003000-00001. PMID 10724107.. ...
March 1999). "In vivo mapping of cerebral acetylcholinesterase activity in aging and Alzheimer's disease". Neurology. 52 (4): ... Radionuclide ventriculography. *Radionuclide angiography. *Radioisotope renography. *Sestamibi parathyroid scintigraphy. * ...
... or one of the cerebral hemispheres of the brain; those two procedures, when possible, are also very, very rarely used in ... the invention of air ventriculography and pneumoencephalography, the description of brain endoscopy, the establishment of the ...
Cerebral infarction leads to diffusion restriction, and the difference between images with various DWI weighing will therefore ... Radionuclide ventriculography. *Radionuclide angiography. *Radioisotope renography. *Sestamibi parathyroid scintigraphy. * ... Conventional DWI (without DTI) directly visualizes the ischemic necrosis in cerebral infarction in the form of a cytotoxic ... ADC image of the same case of cerebral infarction as seen on DWI in section above. ...
in phase contrast MRA studies have quantified cerebral blood flow (CBF) in vivo and suggests that CBF is abnormally elevated in ... Dandy had required ventriculography, but Smith replaced this with computed tomography.[15] In a 2001 paper, Digre and Corbett ... An MR venogram is also performed in most cases to exclude the possibility of venous sinus stenosis/obstruction or cerebral ... These stenoses can be more adequately identified and assessed with catheter cerebral venography and manometry.[11] Buckling of ...
What is cerebral ventriculography? Meaning of cerebral ventriculography medical term. What does cerebral ventriculography mean? ... Looking for online definition of cerebral ventriculography in the Medical Dictionary? cerebral ventriculography explanation ... cerebral. (redirected from cerebral ventriculography). Also found in: Dictionary, Thesaurus. cerebral. [ser´ĕ-bral, sĕ-re´bral ... Cerebral ventriculography , definition of cerebral ventriculography by Medical dictionary https://medical-dictionary. ...
WITH SPECIAL REFERENCE TO VENTRICULOGRAPHY AND LIPIODOL INJECTIONS. Jefferson ... DISCUSSION ON THE VALUE OF X-RAYS IN THE LOCALIZATION OF CEREBRAL AND SPINAL TUMOURS, ...
Cerebral angiography. WL 141. WL 141.5.C48. Cerebral ventriculography. WL 141. WL 141.5.M2. Magnetic resonance imaging. WL 141 ...
VENTRICULOGRAPHY FOLLOWING THE INJECTION OF AIR INTO THE CEREBRAL VENTRICLES. DANDY, WALTER E. ...
Cerebral Ventriculography. All MeSH CategoriesAnatomy CategoryNervous SystemCentral Nervous SystemBrainCerebral Ventricles ...
Cerebral Ventricles. Cerebral Ventriculography*. Child. Dilatation, Pathologic / radiography. Female. Humans. Hydrocephalus / ... Next Document: Subdural hematomas due to ruptured cerebral aneurysms: angiographic diagnosis and potential pitfall .... ...
What is cerebral theileriosis? Meaning of cerebral theileriosis medical term. What does cerebral theileriosis mean? ... Looking for online definition of cerebral theileriosis in the Medical Dictionary? cerebral theileriosis explanation free. ... cerebral ventriculography. see ventriculography.. Want to thank TFD for its existence? Tell a friend about us, add a link to ... cerebral. (redirected from cerebral theileriosis). Also found in: Dictionary, Thesaurus, Legal. cerebral. [ser´ĕ-bral, sĕ-re´ ...
Dandy WE: Ventriculography following injection of air into the cerebral ventricles. Ann Surg 68:5-111918 ... Ventriculography following injection of air into the cerebral ventricles. . Ann Surg. 68. :. 5. -. 11. , 1918. 17863946. ... Tondreau RL: Ventriculography and pneumoencephalography: contributions of Dr. Walter E. Dandy. Radiographics 5:553-5551985 ... Ventriculography and pneumoencephalography: contributions of. Dr. Walter E. Dandy. Radiographics. 5. :. 553. -. 555. , 1985. ...
Walter Freman also attended the Congress where he presented his research findings on cerebral ventriculography. Freeman, who ... Cerebral Angiography and Egas Moniz. American Journal of Roentgenology. 1992;359(2):364.[permanent dead link] ... A psychosurgical chapter in the history of cerebral localization: the six cases of Gottlieb Burkhardt. In: Code, Christopher; ... "cerebral mythology."[113] At the same meeting the Parisian psychiatrist, Paul Courbon, stated he could not endorse a surgical ...
Dandy, WE: Ventriculography following the injection of air into the cerebral ventricles. Neurosurgical Classic VII. J Neurosurg ... Bell, BA: The Study of Cerebral Edema. Neurosurgery 13:724, 1983. * Bennett, AH and Godlee, RJ: Case of a cerebral tumour. ... Bell, BA: The Study of Cerebral Circulation and the Measurement of Cerebral Blood Flow. Neurosurgery 14:238, 1984. * ... Penfield, W: The cerebral cortex and consciousness. Neurosurgical Classic XXX. J Neurosurg 22:201, 1965. Originally published ...
Ventriculography following the injection of air into the cerebral ventricles. Ann Surg. 1918;68:5-11.PubMedCentralPubMedGoogle ... An encephalographic ratio for estimating ventricular enlargement and cerebral atrophy. Arch Neurol Psychiatry. 1942;47:931-7. ... a comparison with pneumoencephalography and ventriculography. J Neurol Neurosurg Psychiatry. 1976;39:203-11.PubMedCentralPubMed ...
Angiography throughout the cardiovascular system, including cerebral and peripheral arteriography, coronary arteriography and ... ventriculography, pediatric angiocardiography, selective visceral arteriography and aortography, peripheral venography ( ...
Cerebral arteriography and peripheral arteriography (300 mg I/mL) Coronary arteriography and left ventriculography, visceral ... The uses include cerebral, coronary, peripheral, visceral and renal arteriography, venography, aortography, and left ... Optiray 350 is indicated in adults for peripheral and coronary arteriography and left ventriculography. Optiray 350 is also ... Optiray 240 is indicated for cerebral angiography and venography. Optiray 240 is also indicated for contrast enhanced computed ...
The detection of cerebrospinal fluid block with Tc-99m DTPA cerebral ventriculography. Clin Nucl Med. 1996 Jan; 21(1):71-2. ... Regional cerebral perfusion in Landau-Kleffner syndrome and related childhood aphasias. J Nucl Med. 1992 Oct; 33(10):1758-65. ... Brain SPECT evaluation of cerebral perfusion in hemimegalencephaly. Clin Nucl Med. 1997 Apr; 22(4):250-2. PMID: 9099483. ... Regional cerebral perfusion abnormalities after cardiac operations. Single photon emission computed tomography (SPECT) findings ...
The probe is used in conjunction with other probes for transmitting to a receptor the cerebral activity of the patient which is ... Tissue interface detector for ventriculography and other applications US3348548A (en) * 1965-04-26. 1967-10-24. William M ... US4245645A - Self-locking cerebral electrical probe - Google Patents. Self-locking cerebral electrical probe Download PDF Info ... Tissue interface detector for ventriculography and other applications US3348548A (en) * 1965-04-26. 1967-10-24. William M ...
Advanced imaging techniques include ventriculography, cerebral angiography, cavernous sinus venography, cisternography, and ... Tumors over cerebral convexities and frontal lobes. *Complete resection of canine meningiomas is difficult because they are ... Radical cerebral cortical resection (i.e., frontal and parietotemporal lobectomy) is well tolerated in normal dogs with ... Aim: destroy tumor tissue while minimizing damage to normal cerebral tissue. *Orthovoltage radiation therapy has been used but ...
Suzuki S,Ottomo M,Suzuki M. Trans-reservoiral ventriculography (TRV)Acta NeurochirurgicaYear: 1979453-4311318311578. ... Cerebral edema should be discussed as a potential complication of this procedure. Prompt removal of a patients reservoir can ... MRI (T2 sequence) of the brain on postoperative day eight showed improvement of the cerebral edema compared to preoperative ... One important consideration is that the catheter, itself, may be the cause for the cerebral edema. Rubber ventricular catheters ...
... air ventriculography, myelography etc. was established in 1954 Child guidance clinic in 1950 Rural mental health clinic at ... use of Lithium in 1952 and chlorpromazine in 1953 A very modern radiology department with facility for sophisticated cerebral ...
... cerebral angiography MeSH E01.370.350.700.560.190 --- cerebral ventriculography MeSH E01.370.350.700.560.260 --- ... cerebral angiography MeSH E01.370.376.560.190 --- cerebral ventriculography MeSH E01.370.376.560.260 --- echoencephalography ... ventriculography, first-pass MeSH E01.370.370.065 --- angioscopy MeSH E01.370.370.120 --- blood circulation time MeSH E01.370. ... radionuclide ventriculography MeSH E01.370.350.710.715.710.350 --- gated blood-pool imaging MeSH E01.370.350.710.715.710.950 ...
Intraarterial: For cerebral arteriography (300mgI/mL). For coronary arteriography and left ventriculography, visceral ... Cerebral arteriography: 8-12mL; total dose for procedure should not exceed 150mL. IV procedures: Excretory urography: 250- ...
Fluoroscopic cerebral ventriculography (procedure) {419157006 , SNOMED-CT } Fluoroscopy of programmable cerebrospinal fluid ... Ventriculography of brain (procedure) {171549002 , SNOMED-CT } Parent/Child (Relationship Type) Cerebrospinal fluid flow ... Contrast ventriculography of brain (procedure) {268434001 , SNOMED-CT } External drainage of ventricle of brain using ... imaging, ventriculography (procedure) {82831001 , SNOMED-CT } Computed tomography of ventricle of brain (procedure) {719893002 ...
CT cerebral ventriculogram Current Synonym true false 3318351016 CT cerebral ventriculography Current Synonym true false ... Computed tomography of cerebral ventricle Current Synonym true false 3318350015 ... Computerized axial tomography of brain (procedure) {34227000 , SNOMED-CT } Ventriculography of brain (procedure) {171549002 , ...
Fluoroscopic cerebral ventriculography (procedure). Code System Preferred Concept Name. Fluoroscopic cerebral ventriculography ... Fluoroscopic cerebral ventriculography Current Synonym true false 2580714011 Cerebral ventriculogram Current Synonym true false ... Fluoroscopy - brain (procedure) {168997003 , SNOMED-CT } Ventriculography of brain (procedure) {171549002 , SNOMED-CT } ...
Cerebral ventriculography, air contrast (procedure). Code System Preferred Concept Name. Cerebral ventriculography, air ... Cerebral ventriculography, air contrast Current Synonym true false 26689015 Cerebral pneumoventriculogram Current Synonym true ... Contrast ventriculography of brain (procedure) {268434001 , SNOMED-CT } Roentgenography, negative contrast (procedure) { ...
Cerebral ventriculography, positive contrast (procedure). Code System Preferred Concept Name. Cerebral ventriculography, ...
  • The usual dose for ventriculography, or for nonselective opacification of multiple coronary arteries following injection at the aortic root is 25 to 50 mL. (drugs.com)
  • N. Cybulski and X. Jelenska-Macieszyna, "Action currents of the cerebral cortex," Bulletin of the Academy of Science Krakov , pp. 776-781, 1914. (hindawi.com)
  • Report on a rare case of infestation by cysticercosis involving the cerebral subarachnoid space and the epidural space in the cervical and thoracic regions of a 59-year old female patient who presented nausea, signs of cerebelar ataxia and gradual loss of the sensibility in both legs. (bvsalud.org)
  • 1) The MPV is responsible for drainage of the choroid plexus prior to the development of the internal cerebral veins , during embryogenesis, prior to the 11th week of gestation. (thefreedictionary.com)
  • We postulate that the mature fluke pair migrated from the mesenteric veins through Batson's vertebralvenous plexus to the cerebral veins at the cerebellar level. (thefreedictionary.com)
  • Planar radionuclide ventriculography (RVG) also commonly known as multigated acquisition (MUGA) cardiac blood pool scintigraphy has long been a simple and noninvasive method to assess ventricular function and, in particular, left ventricular ejection fraction (LVEF). (thefreedictionary.com)
  • La Ventriculomegalia Fetal es relevante dado que tiene una alta prevalencia e importante asociación con otras anomalías en el Sistema Nervioso Central. (bvsalud.org)
  • El enfoque perinatal está íntimamente ligado al desarrollo de la Medicina Materno Fetal e implica una evaluación precoz de la anatomía del SNC fetal, utilizando como herramienta de apoyo la ultrasonografía, se debe tener un claro conocimiento de la anatomía cerebral fetal, de los criterios diagnósticos y protocolos estandarizados de manejo clínico actual. (bvsalud.org)
  • Considerar el uso de Resonancia Nuclear Magnética Fetal como técnica complementaria, y proporcionar Consejo Médico a los padres apoyado en Equipos Multidisciplinarios. (bvsalud.org)