Table 1.
The 8‐zone segmentation scheme of the iliac–pudendal–penile arterial system
| Zone | Vessel diameter (mm) a |
|---|---|
| Zone 1: Common iliac artery | 9.2 ± 1.2 |
| Zone 2: Internal iliac artery | 6.8 ± 1.0 |
| Zone 3: Anterior division of internal iliac artery | 4.1 ± 1.1 |
| Zone 4A: Proximal internal pudendal artery | 2.7 ± 0.3 |
| Zone 4B: Distal internal pudendal artery | 2.3 ± 0.4 |
| Zone 5A: Common penile artery | 1.8 ± 0.3 |
| Zone 5B: Distal penile arteries | 1.3 ± 0.2 |
| Zone 6: Accessory pudendal artery | 2.0 ± 0.4 |
Values are mean ± SD.
a
Based on data from 284 patients with invasive pelvic angiography.