Table 2 PIRADS2 scoring system using DWI for PZ lesions and T2-weighted for TZ lesions
| Â | Reader 1 No of cases | Reader 2 No of cases | |
|---|---|---|---|
PIRADS-score (DW finding in PZ an TZ lesions) | |||
 1 | No abnormality (i.e., normal) on ADC and high b value DWI | 0 | 0 |
 2 | Indistinct hypointense area on ADC map | 7 | 8 |
 3 | Focal moderate diffusion restriction with focal mildly/moderately hypointense on ADC and isointense/mildly hyperintense on high b value DWI | 9 | 6 |
 4 | Focal marked diffusion restriction with markedly hypointense on ADC and markedly hyperintense on high b value DWI; < 1.5 cm in greatest dimension | 26 | 25 |
 5 | Same as 4 but ≥ 1.5 cm in greatest dimension or definite extraprostatic extension/invasive behavior | 20 | 23 |
PIRADS-score (T2W finding for TZ lesions) | |||
 1 | Homogeneous intermediate signal intensity (normal | 0 | 0 |
 2 | Circumscribed hypointense or heterogeneous encapsulated nodule(s) (BPH) | 1 | 1 |
 3 | Heterogeneous signal intensity with obscured margins Includes others that do not qualify as 2, 4, or 5 | 1 | 2 |
 4 | Lenticular or non-circumscribed, homogeneous, moderately hypointense, and < 1.5 cm in greatest dimension | 3 | 2 |
 5 | Same as 4, but ≥ 1.5 cm in greatest dimension or definite extraprostatic extension/invasive behavior | 1 | 1 |