Table 3 Comparison of heart and left anterior descending coronary artery (LAD) dosimetric parameters in the two setup positions for the 17/41 patients with left breast cancer

Heart (cc)

438.3 ± 79.5

465.3 ± 90.3

0.09

 V20 (%)

1.5 ± 2.2

1.5 ± 1.5

0.90

 V10 (%)

2.3 ± 2.8

2.6 ± 2.4

0.64

 V5 (%)

4.0 ± 4.1

4.6 ± 3.9

0.59

 Dmean (Gy)

1.9 ± 1.3

2.0 ± 1.0

0.95

 Dmax (Gy)

36.8 ± 12.5

41.9 ± 9.8

0.06

 Dmean LAD (Gy)

11.8 ± 9.8

12.0 ± 9.1

0.95

 Dmax LAD (Gy)

27.8 ± 16.0

33.0 ± 13.2

0.14