Table 2.
The difference in dose among different radiation techniques.
| Organ |
IMRT FB vs IMRT BH |
PT FB vs PT BH |
PT FB vs IMRT BH |
||||||
| Patient 1 |
Patient 2 |
Patient 3 |
Patient 1 |
Patient 2 |
Patient 3 |
Patient 1 |
Patient 2 |
Patient 3 |
|
| Heart, Gy (RBE) | -4.3 | -0.3 | 0.2 | 0 | 2.2 | -0.2 | -9.9 | -6.1 | -7.3 |
| Lung, Gy (RBE) | 2.7 | 1.6 | 1 | 1.6 | 0.7 | 0.6 | -4.1 | 0.6 | -2.5 |
| Breast, Gy (RBE) | 0 | 1.5 | 0.6 | -0.5 | 1.7 | 0.9 | 0 | 2.7 | 1.7 |
| Esophagus, Gy (RBE) | -3.8 | -3.4 | -1.3 | -0.1 | -1.6 | -1.1 | -7.5 | -11.1 | -9.7 |
| Body, Joules | -2.2 | -12.9 | -11 | -4.4 | -9 | -9.2 | -77.4 | -82.2 | -84.4 |
Abbreviations: BH, breath holding; FB, free breathing; Gy, Gray; IMRT, intensity-modulated radiation therapy; PT, proton therapy; RBE, relative biological effectiveness.