Table 2 Interobserver agreement of MR sequences of PI-RARDS-v2
From: Interobserver agreement of Prostate Imaging–Reporting and Data System (PI-RADS–v2)
Observer 1 | Observer 2 | K | 95% | P value | Percent agreement | |
|---|---|---|---|---|---|---|
Peripheral zone DWI | ||||||
1 | 5 (10.9) | 6 (13.0) | ||||
2 | 7 (15.2) | 7 (15.2) | 0.78 | 0.62-0.94 | 0.001 | 86.96% |
3 | 6 (13.0) | 7 (15.2) | ||||
4 | 28 (60.9) | 26 (56.5) | ||||
DCE | ||||||
−Ve | 16 (34.8) | 18 (39.1) | 0.91 | 0.83-0.99 | 0.001 | 96.0% |
+Ve | 30 (65.2) | 28 (60.9) | ||||
Transitional zone T2W | ||||||
1 | 7 (28.0) | 7 (28.0) | ||||
2 | 4 (16.0) | 4 (16.0) | ||||
3 | 4 (16.0) | 3 (12.0) | 0.95 | 0.84–1.0 | 0.001* | 96.0% |
4 | 1 (4.0) | 2 (8.0) | ||||
5 | 9 (36.0) | 9 (36.0) | ||||
DWI | ||||||
2 | 7 (28.0) | 7 (28.0) | ||||
3 | 4 (16.0) | 4 (16.0) | 0.94 | 0.84–1.0 | 0.001 | 96.0% |
4 | 6 (24.0) | 7 (28.0) | ||||
5 | 8 (32.0.) | 7 (28.0.) | ||||