Some aspects of brain-investigation by means of radio-isotopes

Brain scanning ? Cerebral scintigraphy

“…The demonstration of glioblastomas and meningiomas by scanning is possible in over 90% of cases, while with metastases it is somewhat lower 15,25 The meningiomas which cannot be demonstrated are those which lie suprasellar, basally, and in the posterior fossa. The demonstration of glioblastomas and meningiomas by scanning is possible in over 90% of cases, while with metastases it is somewhat lower 15,25 The meningiomas which cannot be demonstrated are those which lie suprasellar, basally, and in the posterior fossa.…”

Intracranial Hodgkin's disease shown by radioisotope scan.

“…Winkelman and Moore (1941) described a complex case with apparent intracerebral as well as subdural Hodgkin's disease but their illustrations are of leucoencephalopathy, as pointed out by Astrom, Mancall, and Richardson (1958). The uptake by tissues of radioactive isotopes is dependent on factors such as vascularity and permeability, the latter being the more obscure in tumours, with possibly an active cellular component (Planiol, 1966). The gamma emitter Technetium-99m, as used in this case, has a short half-life; its Intracranial Hodgkin's disease shown by radioisotope scan .4 tumour concentration and the ratios of this to those in blood and brain allow well-defined pictures for an acceptable dose of radiation and examination time.…”