Errata

AJNR Am J Neuroradiol 26:815–819, April 2005

Due to reinspection of our original data, we recently encountered deviations between the initial measurements and the file used for statistical analysis. Two columns of figures of CBV values (lesion and control of the surviving tissue, ST7) have been interchanged with corresponding columns of CBV, but from day 1 instead of day 0. Hence, the given value of the rCBV of ST7 in Table 2 has to be changed from 1.02 ± 0.12 to 0.87 ± 0.10. Consequently, there is no longer a statistical difference between the rCBV of those regions evolving to infarction more than 24 hours after onset, ie, between day 1 and 7, and the surviving tissue. The ROC analysis now reveals a value of 0.75 with a sensitivity of 0.44 and specificity of 0.94 (originally published data: 0.82, sensitivity 0.56 and specificity 0.95). Although the tenor of our work is still accurate, we now have to point out, that there is no reliable threshold discriminating survival against death of tissue for any of the perfusion parameters rCBV, rCBF, rTTP or rMTT.

• Copyright © American Society of Neuroradiology