Sci—Thur AM: Planning ‐ 06: Planning target volume margin suitability in lung stereotactic body radiation therapy: A preliminary evaluation using cone‐beam computed tomography

Stereotactic body radiation therapy (SBRT) requires precise delivery of radiation to the target; intra- and inter-fraction lung tumour motion may adversely impact local tumour control. The purpose of this study was to retrospectively evaluate the impact of planning target volume (PTV) margin size on the coverage of the internal target volume (ITV) as localized in pre- and post-treatment cone-beam computed tomography (CBCT) images. Data from two …