From: Dynamic contrast-enhanced MR imaging in identifying active anal fistula after surgery
Parameters | Active fistula | Postoperative healing/granulation tissue | ||
---|---|---|---|---|
I (n = 23) | II ≤ 75 days (n = 11) | III > 75 days (n = 11) | IV Total (n = 22) | |
WI (a.u.) | 6.07 ± 5.42 | 2.82 ± 2.36 | 2.92 ± 2.44 | 2.92 ± 2.76 |
WO (a.u.) | 0.12 ± 0.30 | 0.29 ± 0.12 | 0.25 ± 0.22 | 0.26 ± 0.19 |
TTP (sec) | 34.60 ± 13.50 | 44.30 ± 21.10 | 34.97 ± 15.70 | 38.55 ± 16.24 |
PEI (a.u.) | 145.57 ± 79.30 | 109.57 ± 78.10 | 96.37 ± 65.20 | 102.15 ± 63.10 |
AUC (a.u.) | 322.73 ± 132.47 | 283.50 ± 209.03 | 232.93 ± 140.10 | 239.93 ± 161.26 |
NSI (a.u.) | 0.95 ± 0.86 | 1.69 ± 0.71 | 1.52 ± 0.44 | 1.57 ± 0.47 |