Letter by Murai Regarding Article, “Leakage Sign for Primary Intracerebral Hemorrhage: A Novel Predictor of Hematoma Growth”
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To the Editor:
We read the article by Orito et al1 on the predictability of contrast extravasation and hematoma expansion through the use of computed tomographic angiography (CTA) phase and delayed phase CT with great interest.
Previously, we explored indicators of hematoma growth with observations of contrast fluid extravasation using both CTA2 and contrast-enhanced magnetic resonance imaging.3 Recently, we4 indicated the importance of the time between injection of contrast medium and imaging, allowing sufficient time for extravascular leakage using the normal phase (nondynamic) magnetic resonance …