Table 1 Average covering ratios of the stomach based on skin, bone, and 4D soft-tissue matching according to PTV structures of 5, 10, 15, 20, 25, and 30Â mm margins for eight patients
PTV structure (mm) | Covering ratio (%) | P value | ||
|---|---|---|---|---|
Skin matching | Bone matching | 4D soft-tissue matching | ||
5 | 17.9 | 19.6 | 33.8 | 0.323 |
10 | 53.8 | 52.8 | 76.7 | 0.053 |
15 | 82.5 | 79.7 | 98.0 | 0.003 |
20 | 95.2 | 93.4 | 99.4 | 0.186 |
25 | 99.2 | 99.1 | 100.0 | 0.320 |
30 | 100.0 | 99.8 | 100.0 | 0.368 |