Table 1 The average values of various modulation indices for intensity modulated radiation therapy plans
From: Assessment of the modulation degrees of intensity-modulated radiation therapy plans
|  | MIs (×  10− 3) | MIa (×  10− 2) | MIc, IMRT (×  10− 1) | MCS (×  10− 1) | PA (×  10− 1) | PI (×  10− 1) | PM |
|---|---|---|---|---|---|---|---|
TrueBeam STx | |||||||
 Lung SABR (n = 20) | 7.97 ± 1.41 | 2.67 ± 0.69 | 0.31 ± 0.08 | 1.25 ± 0.18 | 1.01 ± 0.45 | 0.73 ± 0.18 | 0.67 ± 0.05 |
 Spine SABR (n = 20) | 5.62 ± 1.48 | 1.46 ± 0.48 | 0.17 ± 0.05 | 0.64 ± 0.19 | 1.13 ± 0.53 | 1.53 ± 1.35 | 0.86 ± 0.05 |
 Liver SABR (n = 20) | 7.83 ± 2.46 | 2.40 ± 0.60 | 0.27 ± 0.06 | 1.11 ± 0.42 | 1.39 ± 0.67 | 1.03 ± 0.65 | 0.73 ± 0.12 |
 Brain (n = 20) | 9.20 ± 2.56 | 9.06 ± 2.62 | 1.01 ± 0.28 | 1.40 ± 0.46 | 3.72 ± 1.85 | 0.70 ± 0.27 | 0.67 ± 0.13 |
 Head and neck (n = 20) | 6.12 ± 2.24 | 7.06 ± 1.52 | 0.82 ± 0.17 | 0.35 ± 0.08 | 3.72 ± 0.82 | 2.30 ± 0.43 | 0.93 ± 0.02 |
Trilogy | |||||||
 Head and neck (n = 40) | 4.14 ± 1.11 | 5.94 ± 0.83 | 0.70 ± 0.10 | 0.30 ± 0.05 | 2.27 ± 0.41 | 1.87 ± 0.22 | 0.94 ± 0.01 |
 Prostate primary (n = 21) | 3.34 ± 0.71 | 4.95 ± 0.79 | 0.58 ± 0.09 | 0.81 ± 0.14 | 0.95 ± 0.22 | 0.64 ± 0.11 | 0.79 ± 0.04 |
 Prostate boost (n = 21) | 3.18 ± 0.43 | 4.89 ± 0.65 | 0.57 ± 0.07 | 0.94 ± 0.13 | 0.90 ± 0.14 | 0.47 ± 0.10 | 0.72 ± 0.04 |
 Liver (n = 11) | 5.14 ± 2.14 | 6.93 ± 1.40 | 0.80 ± 0.16 | 0.78 ± 0.24 | 1.72 ± 0.60 | 0.94 ± 0.54 | 0.79 ± 0.07 |
 Spine (n = 9) | 5.46 ± 2.68 | 4.02 ± 1.55 | 0.47 ± 0.17 | 0.63 ± 0.25 | 2.01 ± 1.40 | 1.26 ± 0.82 | 0.86 ± 0.06 |