CD274 and neoplasm: For images analyzed with algorithm 0, and for tumor ROIs segmented by fixed-size ROIs, the D values of the IVIM parameter were 1173.3 ± 289.541 μm2/s × 106 for the group with no PD-L1 expression (Group 0) and 1327.0 ± 372.965 μm2/s × 106 for the group with positive PD-L1 expression (Group 1) (p = 0.356).