Table 3.
Dosimetry achieved during first and second fraction of salvage high-dose-rate brachytherapy (sHDR-BT) for patients with intra-prostatic relapse of prostate cancer after initial radiotherapy treatment
| Parameter | First sHDR-BT fraction | Second sHDR-BT fraction |
|---|---|---|
| Dominant intra-prostatic lesion volume (cc), median (IQR) | 7 (6-11) | 9 (8-16) |
| Dominant intra-prostatic lesion D100% (Gy), median (IQR) | 10 (10-11) | 10 (9-11) |
| Dominant intra-prostatic lesion D90% (Gy), median (IQR) | 15 (14-15) | 15 (14-15) |
| HDR-BT prostate volume (cc), median (IQR) | 27 (22-32) | 31 (26-33) |
| Prostate D100% (Gy), median (IQR) | 8 (1-9) | 8 (1-9) |
| Prostate D90% (Gy), median (IQR) | 11 (5-11) | 11 (7-12) |
| Rectum D0.1cc (Gy), median (IQR) | 8 (7-9) | 8 (7-9) |
| Rectum V10.8 Gy (cc), median (IQR) | 0 (0-0) | 0 (0-0) |
| Urethra D10% (Gy), median (IQR) | 12 (12-15) | 12 (12-14) |
| Urethra Dmax (Gy), median (IQR) | 15 (13-17) | 15 (13-16) |