Fig. 1From: Advances in pelvic imaging parameters predicting surgical difficulty in rectal cancerSagittal pelvic magnetic resonance images: a anteroposterior diameter of the pelvic entrance, c anteroposterior diameter of the middle pelvis, d anteroposterior diameter of the pelvic outlet, f pubic symphysis height, g sacrococcygeal distance, h sacrococcygeal curvature depth, i sacrococcygeal–pubic angle, j pelvic depth, and m Angle A5Back to article page