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Four early signs were evaluated on cranial CT within six hours of stroke onset: loss of the insular ribbon (LIR); attenuation of the lentiform nucleus (ALN); hemispherical sulcus effacement (HSE); and the hyperdense middle cerebral artery sign (HMCAS). The arterial occlusion site was definitively identified on cerebral angiography within two hours of the CT examination. LIR, ALS, HSE, and combinations of these were useful predictors of the arterial occlusion site. |
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carotid artery occlusion,intracranial
CAT scan
CAT scan,abnormal
CAT scan,dense artery sign
CAT scan,early changes in CVA
cerebral embolism
cerebrovascular accident
cerebrovascular accident,arterial occlusion,location
insular ribbon,loss of
internal carotid artery
lenticular nucleus,attenuation of
middle cerebral artery,occlusion of
sulcal effacement
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