Numbers of joints of a total of 2970 evaluated joints at 3 different points of time and comparison of number of joints with increased FOI signal and detection by US according to detection by clinical examination. Data on US examination were available for 2550 joints in total
| FOI | US/PD | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| n (%) | Any signal | Composite image | Phase 1 | Phase 2 | Phase 3 | Any signal | Effusion | Synovitis | Hyper-perfusion |
| 947 | 530 | 396 | 783 | 180 | 527 | 430 | 375 | 120 | |
| Signal in clinically active joints | 320 | 205 | 161 | 277 | 81 | 239 | 211 | 164 | 47 |
| (n=519) | (33.8%/61.7%)* r | (38.7%/39.5%) | (40.7%/31.0%) | (35.4%/ 53.4%) | (45.0%/15.6%) | (45.4%/46.0%) | par (49.1%/40.7%) | 164 (43.7%/31.6%) | (39.2%/9.0%) |
| Signal in clinically inactive joints | 627 | 325 | 235 | 506 | 99 | 288 (54.6%/ 11.8%) | 219 | 211 | 73 |
| (66.2%/25.6%) | (61.3%/13.3%) | (59.3%/9.6%9) | (64.6%/20.6%) | (55.0%/4.0%) | (54.6%/11.8%) | (51.0%/8.9%) | (56.2%/8.6%) | (60.8%/3.0%) | |
*First percentage refers to columns, second to rows.