Table 2.
Perfusion parameters of a) synovitis and b) bone marrow edema, derived from DCE images of 10 s and 5 s temporal resolutions. Averaged measurements and their standard deviations are reported. Clinical SYN grading is listed in a).
| a) SYN Perfusion parameters | Baseline n=9 | 3-month follow-up n=8 | Change between baseline and 3-month n=8 | |||
|---|---|---|---|---|---|---|
| 10 s | 5 s | 10 s | 5 s | 10 s | 5 s | |
| dT (S) | 112.8±52.1 | 125.9±63.7 | 124.3±50.7 | 137.5±59.9 | 10.7±39.4 | 7.9±53.0 |
| MaxI (%) | 219.6±79.0 | 223.3±81.4 | 218.1±83.2 | 218.4±82.2 | -6.6±34.0 | -10.7±34.0 |
| TTP (s) | 364.4±41.0 | 362.2±68.8 | 368.8±52.2 | 361.2±54.9 | 7.5±48.4 | -0.6±47.7 |
| Slope (%/min) | 60.8±64.2 | 60.2±64.1 | 58.1±69.7 | 52.7±62.9 | -6.8±61.0 | -11.2±52.4 |
| AUC (%hour) | 20.3±6.8 | 20.4±6.9 | 20.1±7.4 | 19.9±7.2 | -0.6±3.2 | -1.0±3.3 |
| AUCP (%hour) | 17.7±4.6 | 17.8±5.0 | 17.6±5.3 | 17.1±5.2 | -0.2±4.2 | -1.0±4.4 |
| SYN Grading | 3.9±2.1 | 3.5±2.7 | -0.4±1.3 | |||
| b) BME Perfusion parameters | Baseline n=9 | 3-month follow-up n=8 | Change between baseline and 3-month n=8 | |||
| 10 s | 5 s | 10 s | 5 s | 10 s | 5 s | |
| dT (S) | 89.4±56.2 | 104.1±57.1 | 84.1±63.6 | 137.1±84.5 | 6.0±71.4 | 36.0±70.8 |
| MaxI (%) | 168.9±49.3 | 172.0±49.0 | 163.7±52.8 | 166.8±52.9 | -11.8±42.6 | -11.4±40.4 |
| TTP (s) | 290.0±88.6 | 265.6±175.5 | 273.8±121.3 | 313.1±76.9 | -8.8±175.7 | 38.8±97.1 |
| Slope (%/min) | 56.0±61.3 | 44.5±45.5 | 48.0±53.7 | 39.4±43.5 | -14.6±23.3 | -9.7±10.9 |
| AUC (%hour) | 16.4±4.0 | 16.5±4.0 | 15.9±4.5 | 15.9±4.3 | -1.0±3.1 | -1.0±2.9 |
| AUCP (%hour) | 11.5±4.5 | 10.5±4.3 | 11.3±6.4 | 12.4±5.5 | -0.3±8.1 | 1.3±6.5 |