Table 2.
Overall characteristics of TMB and prostatectomy specimens (N = 17).
| Transperineal Mapping Biopsy (TMB) | |
| Number of cores taken, n (%) | |
| 17–75 | 9 (53) |
| 76–114 | 8 (47) |
| Number of positive cores, n (%) | |
| 0 | 0 (0) |
| 1–5 | 5 (29) |
| 6–10 | 9 (53) |
| >10 | 3 (18) |
| Core density (number of cores/specimen volume), median (IQR) |
1.26 (1.08–1.51) |
| Length of cancer in positive cores (mm), median (IQR) |
12.8 (9.5–16.1) |
| Gleason score, n (%) | |
| 6 | 5 (29) |
| 7 (3 + 4) | 10 (59) |
| 7 (4 + 3) | 1 (6) |
| 9 (4 + 5) | 1 (6) |
| Laterality, n (%) | |
| Right | 2 (12) |
| Left | 2 (12) |
| Bilateral | 13 (76) |
| Prostatectomy Specimen | |
| Volume (cc), median (IQR) | 47 (37–65) |
| Gleason score, n (%) | |
| 6 | 3 (18) |
| 7 (3 + 4) | 10 (59) |
| 7 (4 + 3) | 3 (18) |
| 8 | 1 (6) |
| Laterality | |
| Right | 2 (12) |
| Left | 2 (12) |
| Bilateral | 13 (76) |
| Maximum area of cancer (mm2), median (IQR) | 0.52 (0.22–0.92) |
| Maximum diameter of cancer (mm), median (IQR) | 1.21 (0.91–1.49) |