Table 2.
Characteristics of index lesions vs. non-index lesions in 83 men followed with serial magnetic resonance imaging (MRI) of the prostate
| Index lesions | Non-index lesions | p | |
|---|---|---|---|
| Total | 66 | 49 | |
| Size | |||
| Median | 11 | 10 | 0.130 |
| Range | 5–30 | 4–29 | |
| PI-RADS | |||
| 1 | 4 (6.1) | 6 (12.2) | 0.004 |
| 2 | 33 (50.0) | 32 (65.3) | |
| 3 | 18 (27.3) | 11 (22.4) | |
| 4 | 8 (12.1) | 0 (0) | |
| 5 | 3 (4.5) | 0 (0) | |
| Location (%) | |||
| Apex | 8 (12.1) | 11 (22.4) | 0.077 |
| Mid | 33 (50.0) | 21 (42.8) | |
| Base | 25 (37.9) | 17 (34.6) | |
| Zone | |||
| Peripheral | 25 (37.9) | 10 (20.8) | 0.011 |
| Transition | 41 (62.1) | 38 (79.1) |
PI-RADS: Prostate Imaging-Reporting and Data System.