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Three cases of top of the basilar artery occlusion and three cases of deep cerebral vein thrombosis were recognized.In all cases,T2 hyperintensity in a vascular distribution suggested cerebral occlusive disease.Infarction involving the thalami and basal ganglia was present in two cases of deep cerebral vein thrombosis.Infarction of the thalami,mesodiencephalic region,and cerebellar hemispheres was present in two cases of basilar artery occlusion.Bithalamic infarction alone was seen in one case of deep cerebral vein thrombosis and one case of basilar artery occlusion.In the five cases in which MR angiography was used,this technique accurately distinguished the vessels involved(arterial or venous).MR angiography is a useful adjunct to MR imaging in the evaluation of bithalamic T2 hyperintensity.It does help distinguish between the two vascular causes: top of basilar artery occlusion and deep cerebral vein thrombosis. |
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angiography,cerebral
basilar artery occlusion
cerebral venous thrombosis
cerebral venous thrombosis,deep
coma
confusion
level of consciousness,decreased
MRI
MRI,abnormal
MRI,angiography
nausea and vomiting
thalamus,lesion of
thalamus,lesion of-bilateral
top of the basilar syndrome
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