Table 1.
Dosimetric reduction in normal tissue radiation for proton- versus photon-based SABR plans.
| Author, reference | Number of plans compared (n) | Total dose, GyE (dose per fraction) | Lung reduction from protons | Esophagus reduction from protons |
|---|---|---|---|---|
| Hoppe et al., [25] | 16 | 48 (12) | Mean dose 2.2 GyE V5, 10.4%∗ V10, 6.4% V20, 2.1% |
|
|
| ||||
| Seco et al., [26] | 20 | 42 (14) | V5, 37.8% | Maximum dose, 68% |
|
| ||||
| Georg et al., [27] | 36 | 45 (15) |
V20, PSPT, 7–9% V20, IMPT, >10% |
|
|
| ||||
| Register et al., [6] | 45 | 50 (12.5) | Mean dose, 50% | |
|
| ||||
| Kadoya et al., [29] | 21 | 66 (6.6) | Mean dose 2.8 GyE V5, 18.8% V10, 10.4% V20, 2.3% |
|
*Vx: percentage of structure volume receiving ≥X GyE. PSPT: passively scattered proton therapy. IMPT: intensity-modulated proton therapy.