Reproducibility of surface-based deep inspiration breath-hold technique for lung stereotactic body radiotherapy on a closed-bore gantry linac

ABSTRACT: Highlights • Lung stereotactic body radiotherapy was performed in deep-inspiration breath-hold on a closed-bore linac, with improved treatment times and patient comfort.• Computed tomography scanning confirmed reproducible breath-hold, with tumor within 1.5 mm and 1.5°.• Planning target volumes were reduced by 67%, with consequently large reduction in healthy lung exposure.

Background and purpose

Tumor motion and delivery efficiency are two main challenges of lung stereotactic body radiotherapy (SBRT). The present work implemented the deep inspiration breath hold technique (DIBH) with surface guided radiation therapy (SGRT) on closed-bore linacs and investigated the correlation between SGRT data and internal target position.

Materials and methods

Thirteen lung SBRT patien

SUBMITTER: Nguyen D 

PROVIDER: S-EPMC10213090 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature