Table 3.
Lymph node characteristics.
| Characteristics | N. (%) |
|---|---|
| Distribution | |
| Positive pelvic LN | 307 (83.4%) |
| Common iliac region | 46 (15.0%) |
| External iliac region | 201 (65.5%) |
| Internal iliac region | 18 (5.8%) |
| Obturator region | 38 (12.4%) |
| Presacral region | 1 (0.3%) |
| Perirectal region | 3 (1.0%) |
| Positive para-aortic LN | 61 (16.6%) |
| LPA | 41 (67.2%) |
| AC | 19 (31.2%) |
| RPC | 1 (1.6%) |
| Dpre (cm) | |
| Median 1.2 (1.0–3.4) | |
| <1.15 | 147 (39.9%) |
| ≥1.15 | 221 (60.1%) |
| Vpre (cm3) | |
| Median 3.0 (1.0–54.1) | |
| <2.85 | 179 (48.6%) |
| ≥2.85 | 189 (51.4%) |
| D20F (cm) | |
| Median 0.8 (0.2–2.7) | |
| <0.95 | 219 (59.5%) |
| ≥0.95 | 149 (40.5%) |
| V20F (cm3) | |
| Median 1.2 (0.1–38.5) | |
| <3.45 | 287 (78.0%) |
| ≥3.45 | 81 (22.0%) |
| ΔD20F | |
| Median 0.36 (−0.67–0.80) | |
| ≥0.245 | 260 (70.7%) |
| <0.245 | 108 (29.3%) |
| ΔV20F | |
| Median 0.61 (−2.03–0.95) | |
| ≥0.435 | 259 (70.4%) |
| <0.435 | 109 (29.6%) |
| Radiation dose (95% PGTVnd) | |
| 56 Gy/28 F | 17 (4.6%) |
| 59.36 Gy/28 F | 49 (13.3%) |
| 59.92 Gy/28 F | 20 (5.5%) |
| 60.2 Gy/28 F | 276 (75.0%) |
| 66.2 Gy/31 F | 6 (1.6%) |
| Total | 368 (100%) |
Notes: LPA = regions between aorta and left psoas muscle; AC = regions between inferior vena cava and aorta; RPC = regions between inferior vena cava and right psoas muscle.