Table 2 Dosimetric and anthropometric characteristics* of ipsilateral lung and heart (n = 818)
Chest wall | Chest wall plus lymph nodes | |||||||
|---|---|---|---|---|---|---|---|---|
Characteristics | Total n = 242 | IBR+ n = 80 | IBR- n = 162 | P-value¶ | Total n = 576 | IBR+ n = 82 | IBR- n = 494 | P-value¶ |
Ipsilateral lung | ||||||||
Volume, cm3 | 1431.2 [330.2] | 1458.6 [318.8] | 1417.0 [335.8] | 0.36 | 1369.6 [362.2] | 1382.6 [407.7] | 1367.4 [354.5] | 0.72 |
Mean dose, Gy | 8.9 [3.8] | 8.9 [5.2] | 8.9 [2.8] | 0.96 | 14.3 [2.1] | 13.8 [2.3] | 14.3 [2.1] | 0.05 |
Minimum dose, Gy | 0.3 [1.0] | 0.4 [1.7] | 0.2 [0.1] | 0.11 | 0.2 [0.1] | 0.3 [0.2] | 0.2 [0.1] | <0.001 |
Maximum dose, Gy | 51.6 [1.3] | 52.0 [1.3] | 51.4 [1.3] | 0.002 | 51.8 [1.1] | 51.5 [1.5] | 51.8 [1.1] | 0.06 |
V20Gy, % | 16.4 [6.1] | 15.8 [6.0] | 16.7 [6.2] | 0.30 | 28.7 [5.3] | 28.1 [5.7] | 28.8 [5.2] | 0.22 |
Heart‡ | n = 118 | n = 35 | n = 83 | n = 309 | n = 37 | n = 272 | ||
Volume, cm3 | 512.2 [135] | 515.9 [115.5] | 510.6 [143.0] | 0.85 | 532.2 [117.8] | 572.9 [143.1] | 526.6 [112.4] | 0.024 |
Mean dose, Gy | 3.3 [1.9] | 3.0 [0.9] | 3.4 [2.1] | 0.32 | 3.5 [1.5] | 3.8 [1.2] | 3.5 [1.5] | 0.29 |
Minimum dose, Gy | 0.2 [0.1] | 0.2 [0.1] | 0.2 [0.1] | 0.25 | 0.3 [0.2] | 0.3 [0.02] | 0.3 [0.01] | 0.27 |
Maximum dose, Gy | 48.5 [5.5] | 48.7 [5.6] | 48.4 [5.4] | 0.81 | 47.4 [7.2] | 48.5 [5.2] | 47.3 [7.5] | 0.35 |
V25Gy, % | 3.7 [2.4] | 3.1 [1.7] | 4.0 [2.7] | 0.07 | 3.8 [2.6] | 3.8 [2.1] | 3.8 [2.7] | 1.0 |