Dosimetric parameters | 3D-CRT AP–PA | 3D-CRT 8 fields | IMRT | VMAT |
---|---|---|---|---|
PTV CI | 0.94 ± 0.06 | 0.94 ± 0.04 | 0.97 ± 0.05 | 0.95 ± 0.05 |
PTV HI | 0.38 ± 0.07 | 0.37 ± 0.07 | 0.30 ± 0.06 | 0.27 ± 0.04 |
Lung mean dose (Gy) | 1.17 ± 0.15 | 1.23 ± 0.18 | 1.09 ± 0.11 | 1.1 ± 0.13 |
Lungs max dose (Gy) | 1.33 ± 0.19 | 1.40 ± 0.22 | 1.43 ± 0.15 | 1.27 ± 0.17 |
Heart mean dose (Gy) | 0.96 ± 0.10 | 0.77 ± 0.09 | 0.66 ± 0.05 | 0.65 ± 0.07 |
Heart max dose (Gy) | 1.27 ± 0.12 | 1.25 ± 0.11 | 1.08 ± 0.08 | 1.12 ± 0.08 |
Breast mean dose (Gy) | 1.22 ± 0.15 | 0.64 ± 0.05 | 0.55 ± 0.04 | 0.59 ± 0.05 |
Breast max dose (Gy) | 1.35 ± 0.17 | 0.95 ± 0.07 | 0.72 ± 0.06 | 0.77 ± 0.06 |
Liver mean dose (Gy) | 0.57 ± 0.06 | 0.49 ± 0.05 | 0.55 ± 0.06 | 0.57 ± 0.07 |
Liver max dose (Gy) | 1.24 ± 0.11 | 1.25 ± 0.14 | 1.1 ± 0.09 | 1.19 ± 0.1 |
Stomach mean dose (Gy) | 0.58 ± 0.04 | 0.54 ± 0.05 | 0.43 ± 0.05 | 0.45 ± 0.05 |
Stomach max dose (Gy) | 1.15 ± 0.11 | 1.2 ± 0.10 | 0.98 ± 0.08 | 1.13 ± 0.08 |
Thyroid mean dose (Gy) | 0.11 ± 0.01 | 0.14 ± 0.02 | 0.18 ± 0.03 | 0.35 ± 0.03 |
Thyroid max dose (Gy) | 0.28 ± 0.03 | 0.29 ± 0.04 | 0.49 ± 0.05 | 0.98 ± 0.08 |
Esophagus mean dose (Gy) | 0.35 ± 0.03 | 0.71 ± 0.06 | 0.56 ± 0.06 | 0.61 ± 0.07 |
Esophagus max dose (Gy) | 0.95 ± 0.08 | 1.19 ± 0.09 | 0.98 ± 0.07 | 1.08 ± 0.08 |
Spinal cord mean dose (Gy) | 0.22 ± 0.02 | 0.59 ± 0.05 | 0.51 ± 0.04 | 0.58 ± 0.05 |
Spinal cord maximum dose (Gy) | 0.92 ± 0.10 | 1.1 ± 0.10 | 1.01 ± 0.09 | 1.06 ± 0.08 |
Maximum dose in body (Gy) | 1.35 ± 0.11 | 1.36 ± 0.12 | 1.21 ± 0.11 | 1.23 ± 0.09 |
Integral dose (Gy.cc) | 12,581.1 ± 1042.2 | 11,594.3 ± 1015.5 | 12,334.4 ± 1150.1 | 12,446.6 ± 1072.9 |