Table 1.
The planning dose parameter.
| Dose parameter | Mean | Max | Min | Median | |
|---|---|---|---|---|---|
| PTV | Volume（cm3） | 723.07 | 1472.95 | 431.58 | 699.24 |
| D99% (cGy) | 4755.31 | 4912.00 | 4424.00 | 4804.50 | |
| D98% (cGy) | 4879.13 | 4964.00 | 4650.00 | 4901.00 | |
| D95% (cGy) | 4997.06 | 5045.00 | 4865.00 | 5000.50 | |
| Mean (cGy) | 5190.06 | 5226.00 | 5147.00 | 5182.00 | |
| D50% (cGy) | 5203.50 | 5245.00 | 5155.00 | 5193.00 | |
| D2% (cGy) | 5381.75 | 5466.00 | 5314.00 | 5377.00 | |
| D1% (cGy) | 5401.88 | 5491.00 | 5338.00 | 5393.50 | |
| CI | 0.75 | 0.84 | 0.58 | 0.76 | |
| HI | 0.10 | 0.14 | 0.07 | 0.09 | |
| Spinal cord | Max (cGy) | 1644.00 | 2259.00 | 1036.00 | 1536.00 |
| Spinal cord PRV | Max (cGy) | 2467.19 | 3183.00 | 1705.00 | 2434.00 |
| Lung (ipsilateral) | V5 (%) | 51.35% | 60.00% | 42.00% | 52.25% |
| V10 (%) | 36.72% | 40.00% | 31.00% | 37.50% | |
| V20 (%) | 25.66% | 29.39% | 21.34% | 26.33% | |
| V30 (%) | 19.00% | 22.12% | 15.05% | 19.46% | |
| Mean (cGy) | 1375.94 | 1496.00 | 1224.00 | 1387.00 | |
| Lung (contralateral) | V5 (%) | 7.06% | 16.13% | 0.04% | 6.98% |
| V10 (%) | 0.83% | 2.37% | 0.00% | 0.42% | |
| V20 (%) | 0.03% | 0.21% | 0.00% | 0.00% | |
| V30 (%) | 0.00% | 0.02% | 0.00% | 0.00% | |
| Mean (cGy) | 212.25 | 319 | 110 | 203.5 | |
| Heart | Mean (cGy) | 348.69 | 796.00 | 178.00 | 329.00 |
| Breast (contralateral) | Mean (cGy) | 410.23 | 609.00 | 122.00 | 466.00 |
Notes: D1%, D2%, D50%, D95%, D98%, and D99% is the dose of 1%, 2%, 50%, 95%, 98%, and 99% PTV volume respectively. PTV, planning target volume. PRV, planning risk volume. V5, V10, V20, and V30 is the percentage volume receiving 5, 10, 20, and 30 Gy, respectively. HI, homogeneity index. CI, conformity index.