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NEUROLOGY 2005;64:551-552
© 2005 American Academy of Neurology
Brief Communications

High-resolution MRI identifies basilar artery plaques in paramedian pontine infarct

Isabelle F. Klein, MD, PhD, Philippa C. Lavallée, MD, Elisabeth Schouman-Claeys, MD and Pierre Amarenco, MD

From the Departments of Radiology (Drs. Klein and Schouman-Claeys) and Neurology and Stroke Center (Drs. Lavallée and Amarenco), Bichat University Hospital and Medical School, Denis Diderot University Paris VII, France.

Address correspondence and reprint requests to Dr. Pierre Amarenco, Department of Neurology and Stroke Centre, Bichat University Hospital and Medical School, 46 rue Henri Huchard, 75018 Paris, France; e-mail: pierre.amarenco{at}bch.ap-hop-paris.fr

Paramedian pontine infarct (PPI) is usually attributed to basilar artery (BA) atherosclerosis. However, this hypothesis has thus far been supported only by post-mortem studies. The authors show that high-resolution MRI is a promising method that can detect BA plaques in patients with PPI at or near the origin of the penetrating artery, whereas MR angiograms may appear normal.

Received June 23, 2004. Accepted in final form September 23, 2004.




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