Table 2 Average values of the evaluation grouped by the modified parameters
From: Searching standard parameters for volumetric modulated arc therapy (VMAT) of prostate cancer
|  |  Plan Group  |  CTV H  |  PTV D   min  | R-PTVm D   max  |  R D   50  |  B D   50  |  MU  |
|---|---|---|---|---|---|---|---|
A. | SA | 6.1 ± 1.6 | 59.0 ± 1.6 | 50.1 ± 2.4 | 37.0 ± 3.7 | 37.8 ± 11.4 | 553 ± 74 |
|  | DA | 6.1 ± 1.5 | 58.5 ± 1.9 | 49.0 ± 2.3 | 34.9 ± 3.0 | 37.0 ± 10.3 | 708 ± 65 |
B. | C 0° | 6.7 ± 1.7 | 58.5 ± 1.9 | 50.0 ± 2.5 | 35.8 ± 3.8 | 37.2 ± 11.1 | 655 ± 105 |
|  | C 45° | 5.5 ± 1.1 | 59.0 ± 1.6 | 49.2 ± 2.3 | 36.1 ± 3.3 | 37.6 ± 10.7 | 605 ± 97 |
C. | MDT 80 s SA | 6.5 ± 2.0 | 58.7 ± 1.7 | 50.7 ± 2.6 | 39.1 ± 4.0 | 39.1 ± 11.9 | 541 ± 85 |
|  | MDT 110 s SA | 5.9 ± 1.5 | 59.2 ± 1.3 | 50.0 ± 2.2 | 36.6 ± 3.2 | 37.6 ± 11.4 | 554 ± 67 |
|  | MDT 150 s SA | 5.9 ± 1.0 | 59.0 ± 1.6 | 49.6 ± 2.2 | 35.3 ± 2.8 | 36.7 ± 11.0 | 564 ± 67 |
|  | MDT 80 s DA | 6.0 ± 1.5 | 58.8 ± 1.6 | 48.9 ± 2.3 | 34.9 ± 3.9 | 37.2 ± 10.3 | 696 ± 63 |
|  | MDT 110 s DA | 6.1 ± 1.5 | 58.5 ± 1.9 | 49.3 ± 2.3 | 34.8 ± 3.0 | 36.9 ± 10.5 | 710 ± 65 |
|  | MDT 150 s DA | 6.1 ± 1.6 | 58.2 ± 2.1 | 48.9 ± 2.2 | 35.1 ± 3.1 | 36.9 ± 10.3 | 717 ± 68 |
D. | GS 2° | 6.5 ± 1.9 | 58.8 ± 1.8 | 49.8 ± 2.7 | 36.4 ± 4.1 | 38.1 ± 11.1 | 650 ± 107 |
|  | GS 4° | 5.9 ± 1.3 | 59.0 ± 1.6 | 49.5 ± 2.2 | 35.7 ± 3.4 | 37.2 ± 10.9 | 626 ± 104 |
|  | GS 6° | 5.9 ± 1.3 | 58.4 ± 1.8 | 49.4 ± 2.2 | 35.8 ± 3.0 | 36.8 ± 10.8 | 614 ± 99 |
E. | IMRT | 6.0 ± 0.7 | 58.4 ± 1.7 | 51.9 ± 1.4 | 44.3 ± 2.6 | 41.2 ± 13.3 | 498 ± 25 |