Table 2 Dosimetric features for high-dose-rate brachytherapy (a) and cyberknife (b)
a | |||
Parameter | Value | ||
CTV | 35 (25–43) | ||
D90 | 106 (106–108) | ||
D100 | 81 (77–85) | ||
V100 | 97 (96–98) | ||
V150 | 24 (22–32) | ||
V200 | 8 (7–10) | ||
D2 rectum | 57 (50–69) | ||
D2 urethra | 81 (76–85) | ||
DHI | 0.27 (0.22–0.33) | ||
b | |||
Region of interest | Mean (cGy) | Min (cGy) | Max (cGy) |
GTV | 4027 | 3462 | 4375 |
PTV | 3936 | 3134 | 4375 |
Bladder | 862 | 161 | 3680 |
Rectum | 727 | 102 | 3561 |
Right femoral head | 371 | 145 | 894 |
Left femoral head | 428 | 139 | 1075 |