Figure 5

Infarct size and Area-At-Risk quantification at 3.0T. Top/middle rows: IS on a single patient at 3.0T demonstrating increasing IS using FWHM, 5SD and OAT, and decreasing IS from 5–8 SD. FWHM and 8SD closely correlated with the reference standard of manual quantification. Bottom row: AAR in the same patient using OAT and 2SD thresholding was non-significantly greater than the reference standard of manual quantification. FWHM = full-width half maximum, 2/5/6/7/8SD = >2/5/6/7/8 standard deviations, OAT = Otsu’s Automated Thresholding.