Table 2.
Distribution of PI-RADS v2.1 scores, PSA densities, lesion sizes, zones, and locations within the prostate grouped by first MRI-targeted biopsy core revealing the most relevant histopathologic diagnosis.
| 1st biopsy core (n = 331) | 2nd biopsy core (n = 66) | 3rd biopsy core (n = 39) | 4th biopsy core (n = 13) | 5th biopsy core (n = 2) | Overall (n = 451) | |
|---|---|---|---|---|---|---|
| PI-RADS (PZ/TZ) | ||||||
| score 2 | 28/16 | 2/0 | 0/0 | 0/0 | 0/0 | 30/16 |
| score 3 | 32/19 | 5/0 | 0/1 | 0/2 | 0/0 | 37/22 |
| score 4 | 97/16 | 22/3 | 16/3 | 8/0 | 1/1 | 144/23 |
| score 5 | 66/57 | 21/13 | 10/9 | 1/2 | 0/0 | 98/81 |
| PSA density (ng/ml2) | 0.20 ± 0.06 | 0.20 ± 0.04 | 0.21 ± 0.04 | 0.19 ± 0.06 | 0.20 ± 0.00 | 0.20 ± 0.05 |
| Lesion size (mm) | 15.6 ± 6.6 | 17.0 ± 8.2 | 16.1 ± 6.2 | 13.9 ± 8.2 | 11.8 ± 0.3 | 15.8 ± 6.8 |
| Zone | ||||||
| PZ | 224 | 50 | 26 | 9 | 1 | 310 |
| TZ | 107 | 16 | 13 | 4 | 1 | 141 |
| Location | ||||||
| apex | 127 | 29 | 16 | 5 | 0 | 177 |
| midgland | 126 | 26 | 17 | 6 | 1 | 176 |
| base | 78 | 11 | 6 | 2 | 1 | 98 |
N number, ng nanogram, ml2 square milliliter, mm millimeter, PZ peripheral zone, TZ transition zone.