In the article “How Reliable Is Perfusion MR in Acute Stroke? Validation and Determination of the Penumbra Threshold Against Quantitative PET”, by Takasawa et al,1 the authors have requested that a supplemental Table and accompanying Addendum be included in their online article. The Table and text include the sensitivity/specificity data for the 8 MR penumbra thresholds reported.
The corrected version can be viewed online at http://stroke.ahajournals.org.
1 [Correction for Vol 39, Number 3, March 2008. Pages 870–877.]