Skip to main content
Fig. 1 | World Journal of Surgical Oncology

Fig. 1

From: Anatomical basis for the choice of laparoscopic surgery for low rectal cancer through the pelvic imaging data—a cohort study

Fig. 1

a Definition of pelvic parameters assayed by CT. Pelvic inlet plane: (a) anteroposterior diameter of entrance; (b) diameter between anterior superior iliac spine and pubic bone; (c) diameter between anterior superior iliac spine and sacrum; (d) superior border diameter of pubis tubercle; (e) anterior superior iliac spine diameter. Middle pelvic plane: (f) anteroposterior diameter of middle pelvis; (g) bispinous diameter; (h) S3 width; (i) diameter of S3 and ischial spine; (j) midline diameter of pubis; (k) diameter between pubis and spinal ischiadica. Pelvic outlet plane: (l) diameter between pubic bone and coccyx; (m) diameter between ischial tuberosity and coccyx; (n) diameter between pubic and ishial tuberosity; (o) diameter of ischial tuberosity. b Definition of pelvic parameters assayed by MRI. (v) Suprapubic diameter; (z) sacral S3; (Wy) sacrococcygeal diameter; (Ds) caudal arc length; (y) S3 tail; (q) sacral T; (r) T-S3; (s) T tail; (p) T suprapubic; (u) T subpubic; (1) the angle between the vertex of sacral promontory and the apex of the coccyx; (2) the angle between the lower edge of the third sacral bone and the lower margin of the pubic bone; (3) the angle between the apex of the coccyx and the upper margin of pubis; (4) the angle between the vertex of sacral promontory and the lower margin of the pubic bone; (5) the angle between the vertex of sacral promontory and the lower edge of the third sacral bone; (T1) the angle between the vertex of sacral promontory and the lower edge of the third sacral bone; (T2) the angle between the lower edge of the third sacral tubercle and the apex of the coccyx; (T3) the angle between the apex of the coccyx and the lower border of the pubic bone; (T4) the angle between the lower border and upper border of the pubic bone; (T5) the angle between the upper border of the pubic bone and the vertex of sacral promontory

Back to article page