Table 2 Degree of stenosis based on luminal area
Vein | < 20% stenosis | 20 to 49% stenosis | 50 to 69% stenosis | > 70% stenosis |
|---|---|---|---|---|
Common iliac vein | ≥ 161mm2 | 160 to 103 mm2 | 102 to 62 mm2 | ≤ 61 mm2 |
External iliac vein | ≥123mm2 | 122 to 79 mm2 | 78 to 48 mm2 | ≤ 47 mm2 |
Common femoral vein | ≥ 90 mm2 | 89 to 58 mm2 | 57 to 35 mm2 | ≤ 34 mm2 |