SEARCH · Search PubMed
Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
A catheter technique for encephalography utilizing a polyethylene catheter is described. The advantages are principally that it reduces the possibility of needle displacement during examination and thus the danger of extra-arachnoid injection of air.
Five cases of spontaneous deep brain hemorrhage have been presented. Two hemorrhages occurred above the tentorium and three below. The advantages of encephalography combined with tomography in diagnosing and following patients with deep brain hemorrhage are demonstrated in each case.
In some cases it has been observed that after encephalography air seems to be displaced from one part of the ventricular system to another without movements of the head. This apparently occurs in spite of the law of upward displacement of gases in fluids.
475 pediatric patients with a variety of neurologic conditions were subjected to encephalography, using N2O as the contrast medium and N2O-halothane as anesthetic agents. This technic is both safe and effective, as reflected by no mortality and satisfactory roentgenograms. By application of the principles of gas physics, postoperative discomfort has been greatly reduced, resulting in a more comfortable convalescence and earlier discharge.
The authors report on a case of epidermoid tumor in the lateral cerebral ventricle. Epidermoid tumors are relatively uncommon intracranial lesions and were first described by Esmarch. Till now about 300 cases have been reported. In Japan this tumor was first described by Yamamura, and since then many cases have been reported. But the one situated in the lateral ventricle has not been reported yet in this country. The significance of echo-encephalography is discussed because this procedure was very useful in determining the location and the nature of the tumor of this case.
The probability of diagnosis of brain tumours by means of 3-detector-gamma-encephalography (Hg 197-Neohydrin) is higher than that of the scintigraphic procedures so far available. Above all, the diagnostic accuracy of foci with low storage rates and space-occupying processes of the infratentorial region is improved. The short duration of the examination allows the method to be applied as a screening test.
The radionuclide angiography, of gamma-angio-encephalography (gamma-A.E.G.), a non invasive method, is able to bring specific information for the diagnosis of intracerbral hematoma (I.C.H.). In 25 out of 32 verified cases of I.C.H. the rapid sequential imaging shows from the arterocapillary time a deeply seated avascular area, which is a quite different aspect from the defect observed in ischemic A.C.V., or malignant tumors. The transit curves confirm the regional of circulating blood pool.
The aim of this technical note is to show that ketamine hydrochloride anesthesia, owing to the preservation of muscle tone, enables one to safely and comfortably carry out gaseous encephalography on a simple radiological table in the toddler or child. However the authors very strictly select the indications for this investigation. Whenever the child's clinical condition leads one to suspect intracranial hypertension and/or a cerebral tumor, they think it more prudent, owing to the vasopressor effect of ketamine hydrochloride and a possible elevation in the cerebrospinal fluid pressure, to transfer the child to a specialized neuroradiological center, where the investigations would be carried out under the best technical conditions, and close to a neurosurgical unit which is capable of intervening rapidly in case of complications. The authors voluntarily limit their indications to children suffering from psychomotor retardation, epilepsy or neurological disorders which make one suspect a congenital malformation.
40 children were employed as test cases in fractionated gas encephalography using Halan-nitrous oxide anesthesia, and the level of cerebrospinal pressure, the röntgenoparent quality of the extracerebral spaces and the duration of postencephalographical symptoms were examined using air and nitrous oxide as contrast media. In the course of the examination the cerebrospinal pressure showed a tendency to rise when air was introduced, to fall when nitrous oxide was introduced. After instillation of N2O however the filling of the subarachnoid space was over so quickly that it could not be included in the assessment. Sufficient röntgenograms were obtained for all diagnostic demands through 'hybrid filling', (introduction of nitrous oxide into the ventricles, introduction of air into the subarachnoid spaces). With the aid of the results obtained from this examination attempts will be made to derive differentiated indications for filling with nitrous oxide.
Subacute combined degeneration of the spinal cord is a rare complication of vitamin B12 deficiency and is seldom encountered today. A case of Addisonian pernicious anaemia is reported in which the classical signs of subacute combined degeneration developed suddenly after air encephalography had been performed. The patient made a complete recovery.
Computed tomography (CT) in a group of 70 black patients with epilepsy showed cerebral cysticercosis in 30%, with signs of activity in 12.9%. The possibility of effective treatment in active cysticercosis makes CT an important investigation of epilepsy in this population. Electro-encephalography is of some practical value in patients in whom CT is negative.
Both electro-encephalography and brain biopsy were examined as possible aids in the confirmation of a clinical diagnosis of heartwater in field cases. Results showed that electro-encephalographic changes associated with heartwater were non-specific and probably caused by the associated brain oedema. Brain biopsy on the other hand appears to be a reliable technique for the confirmation of heartwater, and the technique if properly performed holds little risk for the animal.
Focused encephalography is a diagnostic procedure performed after computed tomography (CT) that can be specifically focused on diagnostic problems not solved by CT. The authors have used the procedure in 20 cases, and it has proved to be quick, risk-free, and without serious side effects. It provides useful supplementary diagnostic information, and can be especially helpful when CT is not available or when the CT scanner is an early-generation model.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.