Vagina

Category: Reproductive
Description: Vagina

Model: GyneOrgans

CT

Model Information

Metrics

Dice Coefficient

0.77
Average
0.78 (Median)

95th Percentile Hausdorff Distance (mm)

6.8
Average
4.49 (Median)

Mean Surface Distance (mm)

1.13
Average
0.79 (Median)

Median Distance to Conformity (mm)

2.96
Average
2.72 (Median)

Undercontouring MDC (mm)

3.04
Average
2.27 (Median)

Overcontouring MDC (mm)

2.89
Average
2.68 (Median)

Delineation Information

Guidelines

The vagina is delineated as a single structure on the axial CT scan covering the outer contour of the vagina

Method

Manual

Structure Boundaries

Cranial Boundary

At the level where the cervical bulge is not visible in patients with an intact uterus. In patients who have undergone a hysterectomy, the superior border extendes to include the topmost slice where the vaginal vault is visible and includes portions of the vascular pedicle at the superior aspect of the vaginal vault.

Caudal Boundary

2 cm below the lower border of the symphisis pubis on the axial image

Medial Boundary

NA

Lateral Boundary

Covers the external contour of the vagina but excluding the pelvic floor muscles

Ventral Boundary

Upto the urethra

Dorsal Boundary

Upto the analcanal and rectum