Study on sex differences and potential clinical value of three-dimensional computerized tomography pelvimetry in rectal cancer patients

Figure 3 Measurements of soft tissue parameters. A: Measurement of rectal area (a): Rectal area at the ischial spine level; B: Measurement of mesorectal fat area (b): Mesorectal fat area at the ischial spine level; C: Measurement of visceral fat area (c): Visceral fat area at the level of the umbilicus; D: Measurement of subcutaneous fat area (d): Subcutaneous fat area at the level of the umbilicus; E: Measurement of waist circumference (e): Waist circumference at the level of the umbilicus; F: Measurement of anterior-posterior abdominal diameter (RS): It refers to the distance measured from the line connecting the umbilicus to the spinous process at the level of the umbilicus, between the abdominal wall section and the lumbar section; measurement of transverse abdominal diameter (TU): It refers to the distance measured from the level of the umbilicus to the horizontal line at the anterior edge of the lumbar vertebrae.