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Table 1: Wilcoxon rank sum test results—both readers combined^{^a}
Feature SOC vs FAST FAST-DL vs SOC FAST-DL vs FAST
Mean P Value Mean P Value Mean P Value
Perceived SNR 4.1 (SD, 0.8) <.001 3.5 (SD, 1.3) <.001 4.3 (SD, 1.0) <.001
Sharpness 4.5 (SD, 0.7) <.001 3.5 (SD, 1.5) .005 4.7 (SD, 0.9) <.001
Artifacts 3.9 (SD, 0.8) <.001 3.5 (SD, 1.1) <.001 4.1 (SD, 0.9) <.001
Anatomic/lesion conspicuity 4.2 (SD, 0.7) <.001 3.3 (SD, 1.1) .006 4.3 (SD, 0.7) <.001
Image contrast 4.0 (SD, 0.7) <.001 3.4 (SD, 1.1) .004 4.1 (SD, 0.8) <.001
GM/WM differentiation 4.3 (SD, 0.7) <.001 3.4 (SD, 1.2) .009 4.5 (SD, 0.8) <.001
↵a SOC is superior to FAST for all criteria (P values <.001). Numbers higher than 3 represent preference for the first of the 2 sequences listed in the upper row. FAST-DL is superior to SOC for all criteria (P values < .008), except for GM/WM differentiation. While this metric trended to be superior for FAST-DL versus SOC, it did not reach statistical significance after Bonferroni correction (P = .009). FAST-DL is superior to FAST for all criteria (P values <.001).