Published Online
on September 11, 2003

A more recent version of this article appeared on October 1, 2003

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Measurement of the Ischemic Penumbra With MRI: It's About Time

Steven Warach MD, PhD^*

From the National Institute of Neurological Disorders and Stroke, Bethesda, Md.

^* To whom correspondence should be addressed. E-mail: warachs{at}ninds.nih.gov.

Key words: cerebral blood flow • magnetic resonance imaging • penumbra • randomized controlled trials

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