CT/CT Angiography and MRI Findings Predict Recurrent Stroke After Transient Ischemic Attack and Minor Stroke
- 1 April 2012
- journal article
- clinical trial
- Published by Ovid Technologies (Wolters Kluwer Health) in Stroke
- Vol. 43 (4), 1013-1017
- https://doi.org/10.1161/strokeaha.111.637421
Abstract
Background and Purpose—Transient ischemic attack and minor stroke portend a substantial risk of recurrent stroke. MRI can identify patients at high risk for a recurrent stroke. However, MRI is not commonly available as an emergency. If similarly clinically predictive, a CT/CT angiographic (CTA) imaging strategy would be more widely applicable. Methods—Five hundred ten patients with consecutive transient ischemic attack and minor stroke underwent CT/CTA and subsequent MRI. We assessed the risk of recurrent stroke within 90 days using standard clinical variables and predefined abnormalities on the CT/CTA (acute ischemia on CT and/or intracranial or extracranial occlusion or stenosis ≥50%) and MRI (diffusion-weighted imaging-positive). Results—There were 36 recurrent strokes (7.1%; 95% CI, 5.0–9.6). Median time to the event was 1 day (interquartile range, 7.5). Median time from onset to CTA was 5.5 hours (interquartile range, 6.4 hours) and to MRI was 17.5 hours (interquartile range, 12 hours). Symptoms ongo...This publication has 25 references indexed in Scilit:
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