ESTRO 2024 - Abstract Book

S5102

Physics - Radiomics, functional and biological imaging and outcome prediction

ESTRO 2024

Figure 1 . Cox-based NTCP model for grade 5 bleeding at 1, 2, 3, 4, and 5 years after SBRT treatment including D 0.31cc for the main and intermediate bronchi and tracheobronchial compression. Solid lines are without tracheobronchial compression and dashed lines are with tracheobronchial compression. Blue dots are D 0.31cc for patients without tracheobronchial compression, and red diamonds are D 0.31cc for patients with tracheobronchial compression.

Conclusion:

Dose to a small volume of the main and intermediate bronchi and tracheobronchial compression are important predictors for grade 5 bleeding. For patients with ultra-central lung tumors, this provides some guidance on how to limit the risk of fatal toxicity.

Keywords: NTCP, ultra-central, bronchial dose

References:

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