Table 2.
Brachytherapy planning parameters – mean and standard deviation
| D90(% of PD) | D99(% of PD) | V100(% of CTV) | V150(% of CTV) | V200(% of CTV) | DNR | HI | |
|---|---|---|---|---|---|---|---|
| Combined BT & EBRT | 2.9 ± 2.6 (96.8%) |
2.7 ± 3.9 (68.7%) |
23.7 ± 1.4 (87.6%) |
11.6 ± 5.1 (44.7%) |
5.7 ± 9.2 (16.7%) |
0.51 ± 0.07 | 0.49 ± 0.07 |
| Exclusive BT | 4.5 ± 7.2 (98.9%) |
3.4 ± 5.2 (74.2%) |
28.7 ± 10.8 (89.2%) |
13.9 ± 5.9 (43.3%) |
4.8 ± 2.8 (14.9%) |
0.48 ± 0.07 | 0.51 ± 0.07 |
BT – brachytherapy, EBRT – external beam radiotherapy, D90, D99 – the minimum dose to 90%, 99% of the CTV, V100%, V150%, V200% – volume of the anatomic volume receiving 100%, 150%, 200% of the prescribed dose, PD – prescribed dose, DNR – dose non-uniformity ratio, HI – homogeneity index