Portal de Periódicos da CAPES

OVERALL VALUE OF BRAIN SCANS AND ELECTROENCEPHALOGRAMS IN DETECTING NEUROSURGICAL LESIONS

1972; Elsevier BV; Volume: 300; Issue: 7778 Linguagem: Inglês

10.1016/s0140-6736(72)93027-9

1474-547X

J. Olwen Williams, E Hicks, L. Herzberg, Nina Williams, D. N. Croft,

Glioma Diagnosis and Treatment

In a general hospital the overall accuracy of brain scanning in detecting or excluding a cerebral lesion which required neurosurgical attention was 88% in a consecutive, unselected group of 128 patients followed up for up to five years. The most common cause of a false-positive result was a cerebrovascular accident. Scanning within three days of a cerebrovascular accident or three months after may help to distinguish it from an underlying tumour. A negative scan did not exclude a supratentorial lesion and occurred in 29% of those patients with a "neurosurgical lesion". In 2 cases, the electroencephalogram (E.E.G.) was the only positive finding at the initial presentation, and it is suggested that focal E.E.G. abnormalities might profitably be followed by regular scanning until the existence of a tumour can reasonably be excluded. The overall accuracy of E.E.G.S, however, was only 66%.