In the article by Pieters et al, “Periventricular White Matter Lucencies Relate to Low Vitamin B12 Levels in Patients With Small Vessel Stroke,” which was published ahead-of-print on March 12, 2009, and appeared in the May issue of the journal (Stroke. 2009;40:1623–1626) a correction was needed.
Methods: MRI scan parameters: 1.5 or 3.0 Tesla.
The authors became aware of the use of different MRI field strengths in their patient population after publication of the results. The authors don’t think that this affected the severity rating of white matter lesions in this study, because the Fazekas’ scale was used, which does not count individual lesions nor volume. Any increase in white matter lesion detection (due to higher field strength) would unlikely have resulted in a higher category of white matter lesion extension in the Fazekas’ scale. The authors conclude that the results and conclusions as published remain valid.
- © 2013 American Heart Association, Inc.