BACKGROUND: @entity1 with acute @entity1779 ( @entity1779 ) presenting within 3 hours of symptom onset are known to be at increased risk of expansion. However, only a minority arrive within this time frame. Therefore, alternative markers for expansion risk are needed. OBJECTIVE: To examine whether contrast extravasation on CT angiography (CTA) at presentation predicts subsequent @entity1410 expansion. METHODS: Consecutive @entity1 with primary @entity1779 presenting to an urban tertiary care hospital were prospectively captured in a database. We retrospectively reviewed images for all @entity1 receiving a CTA and at least one further CT scan within 48 hours. RESULTS: Complete data were available for 104 @entity1 . Contrast extravasation at the time of CTA was present in 56% of @entity1 , and associated with an increased risk of @entity1410 expansion (22% vs 2%, p = 0.003). @entity1 who received a baseline CTA within 3 hours were more likely to have subsequent expansion (27%, vs 13% for those presenting later, p = 0.1). However, after multivariable analysis, contrast extravasation was the only significant predictor of @entity1410 expansion ( @entity20786 , 95% CI 2.1 to 162). This effect was independent of time to presentation. CONCLUSIONS: Contrast extravasation is independently associated with @entity1410 expansion. @entity1 presenting within the first few hours after symptom onset have traditionally been considered those at highest risk of expansion. However, for those presenting later, the presence of contrast may be a useful marker to guide therapies aimed at decreasing this risk.

Contrast extravasation on CT angiography predicts @entity1410 expansion in XXXX .

@entity1 :: ('9606', 'Species') :: ['Patients', 'patients'] @entity20786 :: ('343406', 'Gene') :: ['OR 18'] @entity1410 :: ('MESH:D006406', 'Disease') :: ['hematoma'] @entity1779 :: ('MESH:D002543', 'Disease') :: ['ICH', 'intracerebral hemorrhage']
@entity1779 :: (MESH:D002543,Disease) :: ['intracerebral hemorrhage']
