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American Journal of Neuroradiology 28:920-922, May 2007
© 2007 American Society of Neuroradiology

Case Report
BRAIN

CT Angiography and Diffusion-Perfusion MR Imaging in a Patient with Ipsilateral Reversible Cerebral Vasoconstriction after Carotid Endarterectomy

M.H. Rosenblooma and A.B. Singhala

a From the Department of Neurology, Massachusetts General Hospital, Boston, Mass

Please address correspondence to Aneesh B. Singhal, MD, Massachusetts General Hospital Stroke Research Center, 175 Cambridge St, Suite 300, Boston, MA 02114; e-mail: asinghal{at}partners.org

SUMMARY: Reversible cerebral vasoconstriction syndromes (RCVS) typically affect the bilateral medium-sized intracerebral arteries and their branches. We describe a woman with RCVS restricted to the ipsilateral hemisphere after carotid endarterectomy. Serial CT angiography proved useful in documenting vasoconstriction. Perfusion MR imaging showed hypoperfusion in the deep watershed regions of the ipsilateral cerebral arteries but relatively normal perfusion in superficial cortical regions. Diffusion MR imaging showed progressive borderzone infarcts. These novel imaging findings provide insights into the pathophysiology of stroke in RCVS.




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[Abstract] [Full Text] [PDF]


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