[Value of isotope scintigraphy and angiography in the diagnosis of brain neoplasms].

The results of cerebral angiography and isotope scintigraphy were compared in 50 patients with brain tumours. The usefulness of each method for detection, localization and determination of the size of the tumour was evaluated. The overall detection rate of brain tumours was 92% in the case of angiography and 90% for scintigraphy, the possiblity of localization was 86% and 90% and size determination was 50% and 74% respectively. Scintigraphy often failed in the diagnosis of astrocytomas and tumours situated near the base of the brain, but this method was more reliable in evaluating the site and size of tumours than angiography.