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Table 1 Average volumes (%) of critical organs and targets at specific dose levels (Gy RBE) for the three treatment techniques, PWTF, P/E, and 3D CPT, with the range of values shown in parentheses

From: Proton radiotherapy for chest wall and regional lymphatic radiation; dose comparisons and treatment delivery

Vol (%) Dose levels PWTF P/E 3D CPT
Heart V5Gy 20.9 (14.1–29.2) 35.6 (28.6–45.7) 4.1 (2.6–7.6)
V10Gy 14.9 (8.9–21.9) 22.7 (15.2–31.8) 2.8 (1.6–6.1)
V20Gy 12.0 (6.6–18.4) 12.4 (6.3–18.9) 1.6 (0.6–4.5)
V45Gy 6.9 (2.8–12.4) 2.2 (0.1–5.5) 0.3 (0.0–1.6)
Lung V5Gy 33.2 (12.1–50.0) 46.3 (28.1–70.4) 25.2 (9.8–36.2)
V10Gy 28.5 (10.0–42.5) 32.2 (17.0–55.7) 21.3 (8.0–31.8)
V20Gy 25.3 (8.7–36.3) 21.7 (11.8–39.5) 16.2 (5.9–25.9)
Chestwall V45Gy 96.6 (92.6–99.4) 94.9 (88.8–99.0) 99.9 (98.7–100.0)
V47.5Gy 93.6 (87.3–97.7) 90.0 (81.6–95.8) 99.6 (98.1–100.0)
IMN V45Gy 98.1 (90.6–100.0) 94.0 (84.3–100.0) 100.0 (99.7–100.0)
V47.5Gy 96.6 (86.5–100.0) 91.8 (80.5–99.7) 99.9 (99.0–100.0)
Level 1 V45Gy 90.4 (69.2–100.0) 93.8 (70.2–100.0) 99.9 (99.7–100.0)
V47.5Gy 85.7 (52.7–100.0) 91.4 (60.5–100.0) 99.6 (98.8–100.0)
Level 2 V45Gy 95.0 (76.3–100.0) 93.5 (81.7–100.0) 100.0 (100.0–100.0)
V47.5Gy 89.9 (56.4–99.8) 90.7 (70.5–100.0) 100.0 (100.0–100.0)
Level 3 V45Gy 97.6 (92.2–100.0) 85.5 (73.5–99.2) 100.0 (99.9–100.0)
V47.5Gy 93.7 (82.2–100.0) 82.4 (71.0–98.5) 96.8 (92.8–100.0)
SCV V45Gy 98.2 (93.1–100.0) 98.6 (97.2–100.0) 98.6 (92.0–100.0)
V47.5Gy 95.9 (91.8–100.0) 95.7 (87.3–100.0) 95.0 (89.0–100.0)