Table 4 Gleason grade groups and grayscale values according to the PI-RADS scores of target lesions
PI-RADS 3 | PI-RADS 4 | PI-RADS 5 | P value | |
|---|---|---|---|---|
Gleason grade group | < 0.001 | |||
1 | 23 (53.5) | 36 (28.6) | 8 (8.7) | |
2–3 | 12 (27.9) | 64 (50.8) | 41 (44.6) | |
4–5 | 8 (18.6) | 26 (20.6) | 43 (46.7) | |
Grayscale values | ||||
Total | 65.6 (47.0–94.7) | 69.7 (45.5–93.7) | 65.7 (47.7–91.7) | 0.915 |
Benign | 74.5 (54.8–99.2) | 61.5 (39.5–93.7) | 82.9 (34.5–91.5) | 0.304 |
Cancerous | 58.8 (44.8–94.3) | 73.2 (50.0–93.7) | 65.6 (47.7–92.2) | 0.077 |
P value | 0.008 | 0.398 | 0.838 | |