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Silent Thromboembolic Events Associated with the Treatment of Unruptured Cerebral Aneurysms by Use of Guglielmi Detachable Coils: Prospective Study Applying Diffusion-weighted ImagingGo

Guy Rordorfa, Richard J. Bellona, Ronald F. Budzik Jr.a, Jeff Farkasa, Gregory F. Reinkinga, Richard S. Pergolizzia, Mustapha Ezzeddinea, Alex M. Norbasha, R. Gilberto Gonzaleza and Christopher M. Putmana

a From the Department of Neurology (G.R.) and the Division of Neuroradiology (R.J.B., R.F.B., J.F., G.F.R., R.S.P., M.E., A.M.N., R.G.G., C.M.P.), Massachusetts General Hospital, Boston, MA.Address reprint requests to Guy Rordorf, MD, Department of Neurology, Massachusetts General Hospital, BLK1291, 55 Fruit Street, Boston, MA 02114.



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  		FIG 1. Diffusion-weighted MR images show two small (<2 mm) areas of injury. The patient, a 69-year-old woman, underwent coiling of a 5-mm left paraclinoid aneurysm 4 days after undergoing four-vessel diagnostic angiography. The aneurysm was 95% occluded with four coils.

A, Left hemisphere.

B, Right hemisphere.

FIG 2. Diffusion-weighted MR image shows two small (<2 mm) areas of injury in the left hemisphere after the coiling of a 10-mm left paraclinoid aneurysm. The aneurysm was 95% occluded with seven coils, and balloon remodeling was used. The patient's National Institutes of Health Stroke Scale score was 0 before the procedure and was unchanged after the procedure





Copyright © 2009 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X