A study by Goldstein et al found that the presence of contrast extravasation increased the odds of hematoma expansion 18-fold.
Therefore, CTA is indicated in the initial imaging evaluation of ICH to look not only for an underlying vascular lesion, but also for a biomarker of ongoing bleeding.
Case submitted by Ashley H. Aiken, M.D., and Alisa D. Gean, M.D., both at the University of California, San Francisco and San Francisco General Hospital.
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