Fig. 3
Images above show a 54-year-old man with Grade 2 AC (a-d) and a 72-year-old woman with Grade 3 MC (e-h). Axial T2-weighted MR image shows the AC along the anterior and left wall of the rectum (a). ADC map shows low-signal-intensity tumor (ADC = 1.21 ± 0.92 × 10− 3 mm2/s, b). MK map shows high-signal-intensity tumor (MK = 1.02 ± 0.01, c). MD map shows low-signal-intensity tumor (MD = 1.19 ± 0.21 × 10− 3 mm2/s, d). Axial T2-weighted MR image shows the MC along left wall of the rectum (e). ADC map shows high-signal-intensity tumor (ADC = 1.84 ± 0.57 × 10− 3 mm2/s, f). MK map shows low-signal-intensity tumor (MK = 0.72 ± 0.15, g). MD map shows high-signal-intensity tumor (MD = 1.88 ± 0.31 × 10− 3 mm2/s, h)