ESTRO 2022 - Abstract Book

S331

Abstract book

ESTRO 2022

At 6- and 12-months mass-like pattern consolidation was recorded in 18.3% and 24%; modified conventional pattern consolidation in 30.3% and 31%. Late consolidations correlated with larger PTV>35cm 3 (OR 4.6, p=0.026), lower lobe location (OR 2.7, p=0.03), and trended to be reduce with CPAP-FB compared with CPAP-DIBH (OR 0.6, p=0.3). Figures 1A-D:

Table 1

Conclusion

Compared with CPAP-FB, CPAP-DIBH assisted SBRT was associated with increased lung volume, decreased PTV size, improved LC and trended towards reduced toxicity, yet late consolidation was increased.

MO-0394 Cardiac Exposure in Lung Cancer Radiotherapy: Systematic Review of Heart Doses Published 2013-2020

M. Kearney 1 , M. Keys 2,3 , C. Faivre-Finn 4 , Z. Wang 5 , M. Aznar 6 , F. Duane 7,8,9