Table 1 Means and standard deviations of dose volume histogram (DVH) metrics in target and normal organs over 13 patients. All plans were prescribed by coverage according to ICRU 91
PTVITV(i) | PTVVH(ii) | WCSCITV(iii) | WCSGTV(iv) | p-value< 0.05 | |
|---|---|---|---|---|---|
GTV | |||||
D98 (Gy) | 60.6 ± 1.8 (56.1–63.7) | 59.6 ± 1.5 (57.0–62.3) | 57.8 ± 1.7 (54.8–59.6) | 56.4 ± 1.0 (55.2–58.6) | (i)-(iii); (i)-(iv); (ii)-(iv) |
D50 (Gy) | 65.7 ± 2.2 (59.7–68.1) | 63.1 ± 2.2 (60.0–66.5) | 63.7 ± 2.2 (59.9–67.2) | 60.5 ± 2.1 (56.4–64.8) | (i)-(iv) |
D2 (Gy) | 69.3 ± 2.3 (65.1–76.3) | 65.4 ± 3.0 (61.3–70.7) | 67.2 ± 3.5 61.6–72.5) | 64.3 ± 2.9 (60.5–70.7) | (i)-(iv) |
Chest Wall | |||||
V30Gy (cm3) | 26.4 ± 16.5 (4.0–60.9) | 19.3 ± 9.9 (1.0–38.1) | 14.1 ± 8.7 (0.4–31.4) | 12.4 ± 7.7 (0.0–29.5) | (i)-(iii); (i)-(iv); (ii)-(iii); (ii)-(iv) |
Lung | |||||
V5Gy (cm3) | 18.1 ± 5.7 (3.3–14.0) | 18.7 ± 5.0 (3.6–13.5) | 18.1 ± 5.8 (3.1–13.4) | 17.0 ± 5.6 (2.8–13.4) | (i)-(iv); (ii)-(iv) |
V20Gy (cm3) | 8.4 ± 3.7 (9.1–31.3) | 7.8 ± 3.3 (9.5–28.3) | 7.4 ± 3.2 (8.3–30.7) | 6.9 ± 3.3 (7.8–29.8) | (i)-(iii); (i)-(iv); (ii)-(iii); (ii)-(iv) |
MLD (Gy) | 4.8 ± 1.7 (2.2–7.9) | 4.7 ± 1.5 (2.3–7.2) | 4.6 ± 1.6 (2.1–7.1) | 4.2 ± 1.5 (1.9–7.1) | (i)-(iv); (ii)-(iv) |