Table 2.
Association between MRI features and recurrence in pN0 patients
| No. of patients | No. of recurrence | Recurrence | p | |
|---|---|---|---|---|
| Age | ||||
| 18–60 | 196 | 173 | 23 | 0.55 |
| ≥ 61 | 219 | 189 | 30 | |
| Sex | ||||
| Male | 254 | 217 | 37 | 0.17 |
| Female | 161 | 145 | 16 | |
| MR-LLN | ||||
| No visible | 311 | 281 | 30 | < 0.01 |
| Visible | 104 | 81 | 23 | |
| MR-T staging | ||||
| T1 | 94 | 89 | 5 | < 0.01 |
| T2 | 115 | 105 | 10 | |
| T3a + b | 206 | 168 | 38 | |
| Tumor relationship with PR | ||||
| Above | 349 | 34 | 10 | 0.90 |
| Below | 66 | 47 | 13 | |
| Postoperative therapy | ||||
| No | 308 | 279 | 29 | < 0.01 |
| Yes | 107 | 83 | 24 | |
| SA of LLN | ||||
| < 8 mm | 92 | 75 | 16 | <0.01 |
| ≥ 8 mm | 12 | 6 | 7 | |
| Location of LLN | ||||
| Internal iliac | 30 | 21 | 9 | 0.22 |
| Beyond internal iliac | 74 | 60 | 14 | |
| Unilateral/bilateral | ||||
| Left side | 45 | 33 | 12 | 0.65 |
| Right side | 26 | 21 | 5 | |
| Bilateral | 33 | 27 | 6 | |
| Border contour | ||||
| Smooth | 57 | 44 | 13 | 0.81 |
| Irregular | 47 | 37 | 10 | |
| Signal intensity | ||||
| Homogeneity | 37 | 29 | 8 | 0.81 |
| Heterogeneity | 67 | 52 | 15 | |
| CSE | ||||
| Negative | 87 | 67 | 20 | 0.99 |
| Positive | 17 | 14 | 3 | |
Recurrence includes metastasis, recurrence, and death
PR peritoneal reflection, SA short axis, LLN lateral lymph node, CSE chemical shift effect