Univariate association between PET/MR imaging NI-RADS and treatment failure
| PET/MR Imaging NI-RADS Score | No. Sites | Failure | P Value |
|---|---|---|---|
| Primary site | 43 | 18 (41.9%) | <.001 |
| 1 | 19 | 2 (10.5%) | |
| 2 | 12 | 5 (41.7%) | |
| 3 | 12 | 11 (91.7%) | |
| Neck lymph nodes | 43 | 5 (11.6%) | <.001 |
| 1 | 33 | 0 (0.0%) | |
| 2 | 6 | 1 (16.7%) | |
| 3 | 4 | 4 (100%) | |
| Combined sites | 86 | 23 (26.7%) | <.001 |
| 1 | 52 | 2 (3.8%) | |
| 2 | 18 | 6 (33.3%) | |
| 3 | 16 | 15 (93.8%) |