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AJNR - American Journal of Neuroradiology

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Arterial Occlusion Revealed by CT Angiography Predicts NIH Stroke Score and Acute Outcomes after IV tPA Treatment

John R. Sims^a, Guy Rordorf^a, Eric E. Smith^a, Walter J. Koroshetz^a, Michael H. Lev^b, Ferdinando Buonanno^a and Lee H. Schwamm^a

^a Department of Neurology, Massachusetts General Hospital, Boston, MA
^b Department of Radiology, Massachusetts General Hospital, Boston, MA

View larger version (38K): [in a new window]   FIG 1. Site of occlusion predicts early improvement at 24 hours. Those patients without CTA-visualized occlusion proximal to the M3 division have significantly better early improvement (P < .02).

View larger version (38K): [in a new window]   FIG 2. Those patients without CTA-visualized occlusion proximal to M3 have a significantly better good outcome based on mRs 2 at 7 days or discharge, whichever came first (P = .01).