XXXX Length Estimation on Delayed Gadolinium-Enhanced T1.

@entity1 @entity5275 @entity2500 @entity715 @entity2287 @entity385
BACKGROUND AND PURPOSE: Previous studies revealed a close relationship between @entity715 length and recanalization rate after @entity5275 ( @entity5275 ). As a novel approach, we prospectively adjusted the order of sequence acquisition to obtain delayed @entity2287 -enhanced T1 (dGE-T1) and thereby assess @entity715 length on dGE-T1 to evaluate its predictive value for recanalization after @entity5275 . METHODS: We reviewed prospectively collected clinical and imaging data from acute @entity385 @entity1 with @entity2500 who underwent multimodal magnetic resonance imaging before and 24 hours after @entity5275 . Perfusion-weighted imaging was performed followed by conventional T1. We measured @entity715 length on dGE-T1 and examined its association with middle cerebral artery recanalization. RESULTS: Of the included 74 @entity1 , the median age was 66 years and 28 (37.8%) were @entity1 . @entity715 length was 8.18  4.56 mm on dGE-T1, which was an acceptable predictor for no recanalization (odds ratio, 1.196; 95% confidence interval, 1.015-1.409; P=0.033), with a receiver-operator characteristic of 0.732 (95% confidence interval, 0.619-0.845; P=0.001). The optimal cut-off point was identified at 6.77 mm, which yielded a sensitivity of 77.8%, a specificity of 57.9%, and an odds ratio of 4.81 (95% confidence interval, 1.742-13.292; P=0.002). Moreover, no one achieved recanalization after @entity5275 when length of @entity715 exceeded 14 mm on dGE-T1. CONCLUSIONS: The dGE-T1, obtained by simply adjusting scanning order in multimodal magnetic resonance imaging protocol, is a useful tool for @entity715 length estimation and middle cerebral artery recanalization prediction after @entity5275 .
