[Cerebral x-ray computed tomography and scintigraphy. Value of the combination of these investigative methods in ischemic pathology].
In 15 patients with a recent ischaemic cerebral vascular accident computerized tomography (CT) of the brain was normal whereas scintigraphy, performed at the same time, clearly showed the ischaemic area. These discordant findings may be interpreted as false-negative CT results. Factors such as the time elapsed between the cerebral accident and the CT examination, and the use or non-use of an intravenous contrast injection are discussed. It seems that the key factor is the proximity of the ischaemic lesion to the surface of the brain: cortical necrosis is undetectable at CT but distinctly visible at scintigraphy.
Larmande
P
P
Département de Neurologie, CHU Bretonneau, Tours.
Lionnet
B
B
Belin
C
C
Limodin
J
J
Groussin
P
P
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002545:Brain Ischemia / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009336:Necrosis; D011877:Radionuclide Imaging; D013670:Sodium Pertechnetate Tc 99m; D014057:Tomography, X-Ray Computed
D013670:Sodium Pertechnetate Tc 99m
Tomodensitométrie et scintigraphie cérébrales. Intérêt de l'association de ces investigations en pathologie ischémique.