Table 3.
Prescription (Gy/fx) | PTV Volume (cc) | The First Step | The Second Step | CBCT Scan Time(s) | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Arc (CCW) | MU | Time(s) a | Arc (CCW) | MU | Time(s) a | 3D CBCT | 4D CBCT | |||
Patient A | 48/8 | 15.89 | 180/330 | 3172.3 | 355 | 300/180 | 1678.9 | 147 | 120 | 240 |
Patient B | 42/7 | 23.52 | 30/180 | 3205.2 | 359 | 180/60 | 1057.9 | 138 | 120 | 240 |
The nominal dose rate: 660 MUs/min.
.