[A trial of the clinical use of the Testascan computerized gamma tomograph in neurosurgical pathology]. / Opyt klinicheskogo ispol'zovaniia komp'iuternogo gamma-tomografa "Testaskan" pri neirokhirurgicheskoi patologii.

The paper outlines the diagnostic potentialities of the first Russian multidetector Testascan gamma-tomograph. With this, three different radio pharmaceuticals (RP) were used; 99mTC-GM PAO for examining cerebral circulatory disorders, 99mTC pertechnetate for visualizing tumor foci, and 99mTC-DTPK for studying impaired cerebral liquor pathway. Regional cerebral blood supply was studied in 78 patients with arterial aneurysms and arteriovenous malformations, with stenoses and thromboses of the great arterial trunks, as well in patients with brain injury sequelae and hypophyseal, craniofascial, and cavernous sinus tumors, VIII-neurinomas, meningiomas of the pyramid of the temporal bone. Some 103 patients with various intra- and extracerebral volumetric formations are examined. The impaired cerebral liquor pathways were explored in 27 patients with pathological processes of various genesis. Experience in clinically using the Russian Testascan computer gamma-tomograph in neurosurgical care has shown its high validity in diagnosing various focal processes of tumor and nontumor genesis. Single photon emission computerized tomography (SPECT) may reveal foci of abnormal elevation or reduction of RP accumulation by showing different anatomically topographic characteristics. SPECT is the most promising in the study of cerebrovascular diseases of various genesis and in the presence of tumors at basal sites.

[Computerized tomography of spinal injuries]. / Komp'iuternaia tomografiia pri povrezhdeniiakh pozvonochnika.

The authors have presented their experience of computer roentgen tomography application in 127 patients with complicated and noncomplicated spine damages, attained during 1987-89 in the clinic of the Byelorussian research institute of traumatology and orthopaedics. Computer tomography examinations allowed to determine spine fractures in 12 patients for the first time, reveal additional damages of the spine frontal sections in 35 patients and of the rear support complex in 30 patients. The causes of neurological disorders have been defined more precisely in 74 observations. Computer tomography possibilities as to the spine and spinal cord damage diagnosis are represented in the offered observations with demonstration of pictures obtained with/without subarachnoid space contrasting, in different hardness modes, formed according to the assigned programs.

[Single-photon emission-computed tomography with the Testascan multidetector gamma tomograph in neurologic practice]. / Odnofotonnaia émissionnaia komp'iuternaia tomografiia s mnogodetektornym gamma-tomografom TESTASKAN v nevrologicheskoi praktike.

The paper is concerned with the results of single-photon emission tomography and gamma-topography in patients with cerebral tumors, cerebral circulatory disorders and pathology of the liquor system. Tomographic investigation was shown to enhance the accuracy and reliability of the detection of cerebral tumors. Single-photon emission computerized gamma-tomography (SPECT) permitted the detection of structural and morphological cerebral changes in disturbed cerebral circulation of various etiology. SPECT together with computerized tomography and radionuclide cisternography was shown to be an auxiliary method for visualization of the cerebral cisterns. Radionuclide tomographic images as compared to gamma-topographic findings of the brain possessed a high statistical significance and good resolution.