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Computerized Transaxial Tomography and Cerebral Serial Scintigraphy in Intracranial Tumors—Rates of Detection and Tumor-Type Identification: Concise Communication

University of Munich, Munich, Federal Republic of Germany

Correspondence: For reprints contact: U. Buell, Radiologische Klinik, Klinikum Grosshadern, University of Munich, Marchioninistr. 15, 8000 Munich 70, Fed. Rep. Germany.

ABSTRACT

In 215 cases of intracranial tumors with subsequent histological identification, computerized transaxial tomography (CTT), and cerebral serial scintigraphy (CSS) with [^99mTc] pertechnetate were carried out to compare the efficiency of each method in detecting and classifying such tumors. With a tumor detection rate of 99%, CTT turned out to be superior to CSS (91%). On the other hand, CSS findings enhanced the CTT rate of correctly identified tumor types in meningiomas from 85 to 92% and in high-grade gliomas from 82 to 89%. In metastases, low-grade gliomas, and various other tumors, CSS supported CTT by confirming a number of these tumor types. Therefore, the most important use of CSS in intracranial tumors today is its role as a supplement to CTT in order to establish and confirm type-specific diagnoses.