Quantitative analysis of XXXX volume for predicting delayed @entity2806 after @entity510 .

@entity1 @entity548 @entity2806 @entity510 @entity16 @entity2553 @entity204 @entity385
BACKGROUND AND PURPOSE: Delayed @entity2806 (DCI) is an important complication after @entity510 and appears to be associated with clot burden on CT. Quantification of @entity548 on digitized images may be a more accurate method for predicting DCI than qualitative scales. METHODS: Quantitative analysis of clot burden on CT was performed in 160 @entity510 @entity1 who were scanned within 24 hours from the symptom onset between June 25, 2005 and July 19, 2009. Cisternal plus intraventricular @entity548 volumes (CIHV) were classified into quartiles to evaluate their association with DCI. DCI was defined as @entity16 or @entity385 , or both attributable to @entity2553 . RESULTS: DCI occurred in 25% of the @entity1 included (age, 55.4  14.5; male, 36.3%). Compared to the lowest quartile of CIHV (<9.6 mL), the higher quartile (9.6 mL-16.5 mL, 16.5 mL-31.0 mL, and >= 31.0 mL) was associated with a greater risk of DCI (odds ratio, 2.6, 4.1, and 6.1, respectively; P=0.01). Receiver-operating characteristic curve analysis showed that quantitative CIHV performed equivalently to the modified Fisher scale. @entity1 who had DCI develop in a specific vascular territory had higher amounts of blood volume in the corresponding cisterns. @entity1 in the highest quartile of CIHV also had a higher risk of @entity204 or severe disability at 3 months (71%) compared to other groups (23%, 19%, and 40% for first, second, and third quartiles, respectively). CONCLUSIONS: CIHV is a reasonable predictor for DCI and 3-month functional outcome in @entity510 @entity1 .
