Clinical Utility of Prominent Hypointense Signals in the Draining Veins on Susceptibility-Weighted Imaging in Acute Cerebral Infarct: As a Marker of Penumbra and a Predictor of Prognosis

Abstract

The determination of cerebral hemodynamic status and tissue viability is crucial for therapeutic applications in acute ischemic stroke. In the acute phase of ischemic stroke, diffusion-weighted imaging (DWI) and perfusion-weighted imaging (PWI) have been used to INTRODUCTION �Received; November 13, 2014�Revised; November 16, 2014 �Accepted; November 23, 2014 Corresponding author : Kook Jin Ahn, M.D. Department of Radiology, Seoul St. Mary’s Hospital, The Catholic University of Korea, 222 Banpodaero Seocho-gu, Seoul 137-701, Korea. Tel. 82-2-3779-1270, Fax. 82-2-783-5288, E-mail : ahn-kj@catholic.ac.kr This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Clinical Utility of Prominent Hypointense Signals in the Draining Veins on Susceptibility-Weighted Imaging in Acute Cerebral Infarct: As a Marker of Penumbra and a Predictor of Prognosis