Open Access
Table 2
Dosimetric data of PTV_Lumpectomy coverage.
| IMPT |
IMRT |
P-value |
|
|---|---|---|---|
| Items | Median(range) | Median(range) | Wilcoxon Signed Rank Test |
| D99 (cGy) | 5395.608 (5069.991 ~ 5709.905) | 5386.749 (5066.503 ~ 5708.182) | 0.889 |
| D98 (cGy) | 5395.914 (5070.369 ~ 5710.333) | 5387.214 (5066.941 ~ 5708.807) | 0.889 |
| D95 (cGy) | 5396.898 (5071.439 ~ 5711.686) | 5388.678 (5068.129 ~ 5710.681) | 0.889 |
| D50 (cGy) | 5414.256 (5091.207 ~ 5737.541) | 5414.256 (5091.207 ~ 5737.541) | 1.000 |
| D5 (cGy) | 5457.563 (5132.946 ~ 5808.199) | 5463.113 (5156.500 ~ 5772.731) | 0.208 |
| D2 (cGy) | 5470.293 (5147.111 ~ 5831.490) | 5473.654 (5171.760 ~ 5777.381) | 0.263 |
| D1 (cGy) | 5481.351 (5158.820 ~ 5850.294) | 5479.506 (5179.703 ~ 5779.533) | 0.093 |
| HI (D95/D5) | 0.985 (0.966 ~ 0.990) | 0.989 (0.981 ~ 0.993) | 0.091 |
| CI (V95%/target volume) | 0.185 (0.101 ~ 0.416) | 0.185 (0.101 ~ 0.416) | 1.000 |
IMPT: intensity-modulated proton therapy, IMRT: intensity-modulated radiotherapy, D99, D98, D95, D50, D5, D2, D1: dose receiving ≥ 99%, 98%, 95%, 50%, 5%, 2%, 1% relative volume, respectively, CI: Conformity index, HI: Homogeneity index.
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