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. 2016 Jan 29;18(1):73–79. doi: 10.5853/jos.2015.01417

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Copyright © 2016 Korean Stroke Society

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 4. — (A) 54 year-old woman (initial NIHSS score: 15) showed left M1 occlusion on MR angiography (MRA, arrow). Susceptibility-weighted imaging (SWI) before intravenous thrombolysis (IVT) shows susceptibility vessel sign (SVS, arrowhead) in left M1 segment. IVT was performed within 4 h from stroke onset. (B) Follow-up MRA after IVT shows recanalization of left M1. Follow-up SWI shows no SVS in left M1 segment. At 3 months, the modified Rankin scale of the patient was 0.