|
FF-VMAT
Average (SD) |
FFF-VMAT
Average (SD) |
HT
Average (SD) |
| Global max (Gy) |
76.9 (1.4) |
76.7 (1.1) |
74.4 (0.8)* |
| PTV6996 D2% (Gy) |
75.0 (0.9) |
75.1 (0.9) |
73.6 (0.9)* |
| PTV6996 D98% (Gy) |
68.8 (0.2) |
68.8 (0.3) |
69.9 (0.1)* |
| Conformity index |
1.036 |
1.046 |
1.167* |
| Homogeneity index |
0.084 |
0.086 |
0.051* |
| Brain stem max (Gy) |
42.4 (9.2) |
42.3 (9.1) |
38.7 (9.6) |
| Cord max (Gy) |
41.9 (1.2) |
42.2 (1.2) |
38.4 (2.3)* |
| Rt parotid mean (Gy) |
26.7 (6.9) |
26.6 (7.1) |
24.4 (6.4) |
| Lt parotid mean (Gy) |
27.6 (13.3) |
27.8 (13.5) |
27.3 (15.5) |
| Larynx mean (Gy) |
44.6 (11.3) |
44.6 (11.4) |
42.2 (11.6) |
| Body mean (Gy) |
13.8 |
13.6 |
15.2 |
| Integral body dose (Joules) |
160.6 (35.7) |
158.1 (34.7) |
172.4 (38.0) |
| Treatment time (sec) |
120 |
120 |
290.5* |
| MU |
621 |
726.3 |
4053.7* |
|
