Table 4 Dosimetric parameters in left-side and right-side tangential irradiation
Dosimetric parameter | Population (n = 75) | p value | |
|---|---|---|---|
Left-side BC (n = 41) Mean (± SD) | Right-side BC (n = 34) Mean (± SD) | ||
Total irradiation dose (Gy) | 57.6 (± 6.8) | 58.2 (± 6.6) | 0.711 |
Mean heart dose (Gy) | 4.2 (± 1.4) | 1.2 (± 0.6) |  < 0.001 |
Maximum heart dose (Gy) | 51.6 (± 7.9) | 5.1 (± 1.9) |  < 0.001 |
Heart V25 (%) | 4.0 (± 2.6) | 0 |  < 0.001 |
Heart volume (cm3) | 572.9 (± 123.3) | 573.5 (± 76.3) | 0.982 |
Mean LAD dose (Gy) | 19.6 (± 9.7) | 1.2 (± 0.7) |  < 0.001 |
Maximum LAD dose (Gy) | 50.7 (± 7.2) | 2.1 (± 1.2) |  < 0.001 |
LAD volume (cm3) | 10.0 (± 4.7) | 10.2 (± 4.1) | 0.856 |
Mean LCX dose (Gy) | 1.5 (± 0.7) | 0.4 (± 0.2) |  < 0.001 |
Maximum LCX dose (Gy) | 2.5 (± 2.1) | 0.7 (± 0.3) |  < 0.001 |
Mean RCA dose (Gy) | 2.1 (± 0.8) | 2.7 (± 0.9) |  < 0.01 |
Maximum RCA dose (Gy) | 5.1 (± 7.5) | 4.6 (± 1.8) | 0.703 |