sodium-pertechnetate-tc-99m and Encephalitis

Gamma topography of the brain as a differential diagnostic method permits the recognition of an inflammatory process and specification of its localization. It can be widely used in an outpatient setting (both for children and adults). Altogether 61 patients were investigated: abscesses of the brain (36 patients, of them 16 children); focal arachnoencephalitis (14 patients, of them 5 children); arachnoiditis (11 patients). Gamma topography of the brain makes it possible to clarify early topical diagnosis of a process. Due to its simplicity, small radiation exposure and noninvasive character of the method can be recommended in outpatient clinics and hospitals both for children and adults.

Topics: Adult; Arachnoiditis; Brain; Brain Abscess; Child; Diagnosis, Differential; Encephalitis; Gamma Rays; Humans; Methods; Radionuclide Imaging; Sodium Pertechnetate Tc 99m

A TESTASCAN single-photon emission multidetector gamma tomograph is a special purpose unit designed to investigate RP distribution in the brain. It permits obtaining transversal tomographic images with the resolution of about 10 mm, the thickness of an emitted layer being about 15 mm. The time of patient's examination during obtaining an image of 10-12 layers does not exceed 30 min. and can be reduced by increasing RP activity and minimizing the number of emitted transversal sections. The clinical testing of the unit has shown that it is reliable in maintenance and simple to operate during radionuclide data collection, reproduction and analysis. Emission computerized tomography in brain tumors can be regarded as a method increasing the accuracy and reliability of radionuclide diagnostic examination of neurosurgical and neurological patients.

Topics: Brain Neoplasms; Encephalitis; Equipment Design; Evaluation Studies as Topic; Humans; Models, Structural; Sodium Pertechnetate Tc 99m; Tomography, Emission-Computed

Topics: Alzheimer Disease; Brain Diseases; Cerebrovascular Disorders; Encephalitis; Humans; Sodium Pertechnetate Tc 99m; Tomography, Emission-Computed; Xenon Radioisotopes