Background
Methods
Patient selection and simulation
Target definition
Dose fractionation and plan optimization
The length of the PTV(cm) | MF | The beam-on time(min) | |
---|---|---|---|
Plan-upper | |||
Mean | 110.8 | 2.9 | 46.1 |
Range | 90.9–112.9 | 2.7–3 | 36.4–55.8 |
Plan-lower | |||
Mean | 71.0 | 1.7 | 16.3 |
Range | 57.2–81.3 | 1.4–2 | 13.0–19.6 |
IGRT and dose delivery
Results
Treatment parameters
Target coverage and OAR sparing
V7Gy | V8Gy | V9Gy | V10Gy | V11Gy | Dmean (Gy) | Dmax (Gy) | ||
---|---|---|---|---|---|---|---|---|
TMI | PTVbone | 0.99 ± 0.00 | 0.92 ± 0.01 | 0.00 ± 0.00 | – | – | 8.36 ± 0.14 | 9.76 ± 0.22 |
TMLI | PTVbone | 1 ± 0 | 0.96 ± 0.01 | 0.91 ± 0.03 | 0.18 ± 0.13 | 0.1 ± 0.11 | 8.61 ± 0.30 | 10.82 ± 0.76 |
PTVlymph | 1.00 ± 0.00 | 0.99 ± 0.01 | 0.92 ± 0.26 | 0.91 ± 0.05 | 0.01 ± 0.01 | 10.36 ± 0.11 | 11.39 ± 0.39 |
Organs | V2Gy | V4Gy | V6Gy | V8Gy | Dmean (Gy) | Dmax (Gy) |
---|---|---|---|---|---|---|
Lung Left | 0.96 ± 0.09 | 0.48 ± 0.06 | 0.23 ± 0.06 | 0.06 ± 0.06 | 4.77 ± 0.33 | 9.16 ± 0.84 |
Lung Right | 0.97 ± 0.04 | 0.47 ± 0.06 | 0.23 ± 0.06 | 0.06 ± 0.06 | 4.62 ± 0.31 | 8.67 ± 0.34 |
Eye Right | 0.84 ± 0.17 | 0.23 ± 0.15 | 0.04 ± 0.05 | 0 ± 0 | 3.18 ± 0.71 | 5.34 ± 0.93 |
Eye Left | 0.81 ± 0.16 | 0.21 ± 0.13 | 0.02 ± 0.02 | 0 ± 0 | 3.27 ± 0.65 | 5.66 ± 1.22 |
Lens Right | 0.78 ± 0.42 | 0.07 ± 0.12 | 0 ± 0 | 0 ± 0 | 2.43 ± 0.58 | 2.86 ± 0.56 |
Lens Left | 0.7 ± 0.38 | 0.02 ± 0.05 | 0 ± 0 | 0 ± 0 | 2.42 ± 0.61 | 2.79 ± 0.64 |
Optic nerve Right | 1 ± 0 | 0.49 ± 0.3 | 0.22 ± 0.36 | 0 ± 0 | 5.15 ± 1.77 | 6.4 ± 1.84 |
Optic nerve Left | 0.92 ± 0.17 | 0.63 ± 0.4 | 0.31 ± 0.31 | 0 ± 0 | 5.26 ± 1.51 | 6.74 ± 1.51 |
Kidney Left | 0.98 ± 0.03 | 0.28 ± 0.1 | 0.1 ± 0.05 | 0.01 ± 0.01 | 3.41 ± 0.77 | 7.96 ± 1.17 |
Kidney Right | 0.98 ± 0.03 | 0.25 ± 0.14 | 0.08 ± 0.08 | 0.01 ± 0.02 | 3 ± 0.14 | 7.42 ± 0.5 |
Heart | 1 ± 0 | 0.57 ± 0.13 | 0.29 ± 0.1 | 0.06 ± 0.07 | 4.65 ± 0.51 | 8.69 ± 0.57 |
Liver | 1 ± 0 | 0.63 ± 0.16 | 0.33 ± 0.27 | 0.17 ± 0.34 | 4.54 ± 0.37 | 8.93 ± 0.67 |
Small Bowel | 0.94 ± 0.07 | 0.51 ± 0.21 | 0.13 ± 0.08 | 0.01 ± 0.01 | 4.26 ± 0.5 | 8.53 ± 0.81 |
Stomach | 0.89 ± 0.18 | 0.51 ± 0.42 | 0.35 ± 0.38 | 0.17 ± 0.19 | 4.12 ± 0.94 | 7.73 ± 1.57 |
Organs | V2Gy | V4Gy | V6Gy | V8Gy | Dmean (Gy) | Dmax (Gy) |
---|---|---|---|---|---|---|
Lung Left | 0.99 ± 0.03 | 0.52 ± 0.09 | 0.27 ± 0.09 | 0.04 ± 0.05 | 4.34 ± 0.49 | 9.54 ± 0.91 |
Lung Right | 0.99 ± 0.02 | 0.51 ± 0.08 | 0.26 ± 0.08 | 0.03 ± 0.04 | 4.38 ± 0.46 | 9.44 ± 0.91 |
Eye Right | 0.83 ± 0.26 | 0.32 ± 0.25 | 0.06 ± 0.11 | 0.01 ± 0.02 | 3.45 ± 0.99 | 6.72 ± 1.68 |
Eye Left | 0.83 ± 0.24 | 0.3 ± 0.2 | 0.05 ± 0.08 | 0 ± 0 | 3.27 ± 0.91 | 6.33 ± 1.46 |
Lens Right | 0.73 ± 0.39 | 0.03 ± 0.13 | 0 ± 0 | 0 ± 0 | 2.31 ± 0.8 | 2.76 ± 1.15 |
Lens Left | 0.67 ± 0.45 | 0 ± 0 | 0 ± 0 | 0 ± 0 | 2.19 ± 0.71 | 2.52 ± 0.86 |
Optic nerve Right | 0.99 ± 0.02 | 0.74 ± 0.36 | 0.56 ± 0.4 | 0.07 ± 0.13 | 5.38 ± 1.43 | 6.96 ± 1.03 |
Optic nerve Left | 0.99 ± 0.03 | 0.78 ± 0.32 | 0.53 ± 0.4 | 0.04 ± 0.09 | 5.25 ± 1.63 | 6.83 ± 1.54 |
Kidney Left | 0.93 ± 0.09 | 0.87 ± 0.18 | 0.8 ± 0.27 | 0.67 ± 0.44 | 8.86 ± 2.21 | 10.18 ± 1.1 |
Kidney Right | 0.9 ± 0.11 | 0.78 ± 0.23 | 0.64 ± 0.36 | 0.55 ± 0.45 | 6.16 ± 2.27 | 7.93 ± 0.97 |
Heart | 0.96 ± 0.09 | 0.83 ± 0.33 | 0.41 ± 0.3 | 0 ± 0 | 6.34 ± 0 | 8.05 ± 0 |
Liver | 0.98 ± 0.05 | 0.81 ± 0.36 | 0.38 ± 0.32 | 0.02 ± 0.03 | 6.88 ± 0 | 8.23 ± 0 |
Small Bowel | 1 ± 0 | 0.6 ± 0.12 | 0.28 ± 0.11 | 0.03 ± 0.05 | 5.01 ± 0.47 | 8.96 ± 0.85 |
Stomach | 0.99 ± 0.01 | 0.57 ± 0.14 | 0.25 ± 0.19 | 0.08 ± 0.21 | 5.64 ± 2.19 | 9.51 ± 1.27 |
Organs | TBI 12Gy | TMI 12Gy | TMI 8Gy |
---|---|---|---|
Lens | 11.3Gy (94.17%) | 1.7Gy (14.17%) | 2.58Gy (32.25%) |
Lungs | 8.8Gy (73.33%) | 5.9Gy (49.17%) | 3.84Gy (48%) |
Kidneys | 12.2Gy (101.67%) | 7.2Gy (60%) | 2.88Gy (36%) |
Heart | 12.1Gy (100.83%) | 6Gy (50%) | 4.6Gy (57.5%) |
Liver | 12.6Gy (105%) | 7.5Gy (62.5%) | 4.73Gy (59.13%) |
Eyes | 11.3Gy (94.17%) | 6Gy (50%) | 2.88Gy (36%) |
Bowel | 12.3Gy (102.5%) | 4.8Gy (40%) | 3.95Gy (49.38%) |
Stomach | 12.2Gy (101.67%) | 4.6Gy (38.33%) | 4.1Gy (51.25%) |
Dose evaluation in the overlapping area
Setup errors during treatment
LR (mm) | SI (mm) | AP (mm) | Roll (°) | |
---|---|---|---|---|
Head-neck | 1.06 ± 0.79 | 1.34 ± 0.66 | 2.45 ± 1.48 | 0.63 ± 0.65 |
Thorax | 1.58 ± 1.13 | 2.38 ± 1.99 | 2.05 ± 1.68 | 0.31 ± 0.32 |
Abdomen-pelvis | 1.67 ± 1.24 | 3.88 ± 2.20 | 1.96 ± 1.32 | 0.48 ± 0.53 |
Legs | 0.95 ± 0.73 | 1.99 ± 1.35 | 3.66 ± 2.13 | 0.24 ± 0.31 |