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Table 4 Average knock-on reductions in other cardiac irradiation measures when MDHeart was purposefully reduced, as a fraction of mean baseline values

From: Cardiac-sparing radiotherapy for locally advanced non-small cell lung cancer

Irradiation measure Structure Mean value at baseline Mean value after MDHeart reduction Mean knock-on reduction Fractional mean knock-on reduction (%)
Mean dose LA wall 17.5 Gy 12.1 Gy 5.4 Gy 31
Right atrium 12.5 Gy 8.8 Gy 4.7 Gy 38
Left ventricle 7.3 Gy 4.3 Gy 3.0 Gy 41
Right ventricle 7.0 Gy 3.4 Gy 3.6 Gy 51
AVR* 13.8 Gy 6.7 Gy 7.1 Gy 51
Right CA 11.8 Gy 5.9 Gy 5.9 Gy 50
Ascending aorta 27.7 Gy 20.4 Gy 7.3 Gy 26
Max dose Right atrium 34.2 Gy 27.0 Gy 7.2 Gy 21
Left ventricle 29.5 Gy 23.3 Gy 6.2 Gy 21
Right ventricle 23.6 Gy 15.4 Gy 8.2 Gy 35
Right CA 15.5 Gy 9.4 Gy 6.1 Gy 39
Ascending aorta 61.2 Gy 59.3 Gy 1.9 Gy 3
VLAwall-63-Gy LA wall 2.5% 0.8% 1.7% 68
VAVR-35–43-Gy** AVR 7.3% 0% 7.3% 100
  1. *Aortic valve region
  2. Coronary artery
  3. **Fractional volume of the AVR receiving 35–43 Gy