Table 2 Dose distribution for the organ at risks in terms of deep and caudal set-up errors in deep inspiration breath hold and free breath (Mean ± (Standard deviation))
From: Variation of heart and lung radiation doses according to setup uncertainty in left breast cancer
Heart | Left ventricle | Left anterior descending coronary artery | Lung, ipsilateral | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
Mean (Gy) | V10Gy (%) | V20Gy (%) | Mean (Gy) | V20Gy (%) | Mean (Gy) | V30Gy (%) | Mean (Gy) | V10Gy (%) | V30Gy (%) | |
Deep inspiration breath hold (N = 15) | ||||||||||
No shift | 2.0 (1.1) | 2.8 (2.7) | 2.1 (2.3) | 3.3 (2.5) | 3.8 (5.1) | 17.8 (12.7) | 29.3 (31.2) | 8.4 (1.3) | 19.7 (3.1) | 12.8 (2.7) |
Deep | ||||||||||
2.5 mm | 2.5 (1.4) | 3.8 (3.2) | 2.9 (2.8) | 4.1 (2.9) | 5.4 (6.3) | 22.2 (13.2) | 38.7 (31.8) | 9.4 (1.3) | 22.1 (3.2) | 15.0 (2.9) |
5 mm | 3.0 (1.6) | 4.9 (3.8) | 3.9 (3.3) | 5.0 (3.4) | 7.4 (7.3) | 26.9 (13.0) | 50.9 (30.6) | 10.5 (1.3) | 24.6 (3.2) | 17.2 (2.9) |
7.5 mm | 3.6 (1.8) | 6.3 (4.3) | 5.1 (3.8) | 6.2 (3.9) | 9.9 (8.4) | 31.4 (12.9) | 61.7 (29.3) | 11.6 (1.4) | 27.1 (3.3) | 19.6 (2.9) |
10 mm | 4.3 (2.1) | 7.9 (4.8) | 6.6 (4.4) | 7.5 (4.3) | 12.7 (9.5) | 35.1 (13.1) | 69.9 (30.5) | 12.8 (1.4) | 29.6 (3.4) | 22.0 (3.0) |
12.5 mm | 5.0 (2.3) | 9.7 (5.3) | 8.2 (4.90 | 8.9 (4.7) | 15.8 (10.5) | 38.0 (13.1) | 76.0 (32.0) | 13.9 (1.4) | 32.0 (3.4) | 24.4 (3.0) |
15 mm | 5.9 (2.5) | 11.7 (5.8) | 10.0 (5.4) | 10.5 (5.1) | 19.3 (4.3) | 40.7 (12.1) | 81.0 (30.4) | 15.0 (1.5) | 34.5 (3.5) | 26.9 (3.1) |
Caudal | ||||||||||
5 mm | 2.1 (1.2) | 3.0 (2.8) | 2.3 (2.4) | 3.5 (2.6) | 4.1 (5.4) | 18.7 (13.0) | 32.3 (30.8) | 8.6 (1.2) | 20.3 (2.9) | 13.4 (2.6) |
10 mm | 2.2 (1.2) | 3.2 (3.0) | 2.5 (2.5) | 3.7 (2.7) | 4.5 (5.7) | 19.6 (13.2) | 32.9 (32.6) | 8.9 (1.1) | 20.9 (2.7) | 14.0 (2.3) |
15 mm | 2.3 (1.3) | 3.5 (3.2) | 2.7 (2.7) | 3.9 (2.9) | 4.9 ()6.1) | 20.6 (13.5) | 34.7 (32.1) | 9.1 (1.0) | 21.4 (2.6) | 14.5 (2.1) |
Free breath (N = 15) | ||||||||||
No shift | 3.7 (1.4) | 6.6 (3.2) | 5.3 (2.8) | 6.0 (2.3) | 9.1 (5.2) | 35.9 (9.6) | 72.6 (24.7) | 7.8 (1.5) | 17.7 (3.6) | 11.9 (3.2) |
Deep | ||||||||||
2.5 mm | 4.5 (1.5) | 8.4 (3.5) | 7.0 (3.2) | 7.4 (2.5) | 12.2 (5.7) | 40.2 (6.8) | 83.8 (15.5) | 8.9 (1.5) | 20.2 (3.7) | 14.2 (3.3) |
5 mm | 5.4 (1.7) | 10.4 (3.9) | 8.8 (3.5) | 9.0 (2.7) | 15.7 (6.1) | 42.9 (5.4) | 89.0 (12.2) | 10.1 (1.6) | 22.7 (3.8) | 16.7 (3.4) |
7.5 mm | 6.4 (1.8) | 12.7 (4.2) | 10.9 (3.9) | 10.7 (2.8) | 19.5 (6.5) | 44.7 (4.3) | 92.0 (10.0) | 11.2 (1.6) | 25.2 (3.8) | 19.1 (3.5) |
10 mm | 7.4 (1.9) | 15.1 (4.5) | 13.2 (4.2) | 12.4 (2.9) | 23.5 (6.9) | 46.1 (3.5) | 94.5 (7.8) | 12.4 (1.7) | 27.8 (3.9) | 21.6 (3.5) |
12.5 mm | 8.6 (2.1) | 17.7 (4.7) | 15.7 (4.5) | 14.3 (3.0) | 27.7 (7.2) | 47.2 (2.6) | 96.8 (5.8) | 13.6 (1.7) | 30.4 (4.0) | 24.2 (3.6) |
15 mm | 9.8 (2.2) | 20.5 (5.0) | 18.3 (4.7) | 16.3 (3.1) | 32.1 (7.4) | 48.0 (1.8) | 98.2 (3.9) | 14.8 (1.8) | 33.0 (4.0) | 26.7 (3.7) |
Caudal | ||||||||||
5 mm | 3.8 (1.5) | 6.9 (3.4) | 5.6 (3.0) | 6.2 (2.5) | 9.6 (5.5) | 36.2 (10.0) | 74.2 (24.3) | 7.9 (1.4) | 17.9 (3.5) | 12.2 (3..1) |
10 mm | 3.9 (1.6) | 7.2 (3.7) | 5.9 (3.3) | 6.4 (2.6) | 10.1 (5.9) | 36.4 (10.6) | 74.2 (25.6) | 8.0 (1.4) | 18.1 (3.4) | 12.5 (3.0) |
15 mm | 4.1 (1.7) | 7.5 (4.0) | 6.2 (3.6) | 6.6 (2.8) | 10.6 (6.3) | 36.5 (11.2) | 72.6 (30.3) | 8.1 (1.4) | 18.3 (3.3) | 12.7 (3.0) |