Longitudinal assessment of anchored transponder migration following lung stereotactic body radiation therapy.

ABSTRACT:

Purpose

To assess the long-term stability of the anchored radiofrequency transponders and compare displacement rates with other commercially available lung fiducial markers. We also sought to describe late toxicity attributable to fiducial implantation or migration.

Materials and methods

The transponder cohort was comprised of 17 patients at our institution who enrolled in a multisite prospective clinical trial and underwent bronchoscopic implantation of three anchored transponders into small (2-2.5 mm) airways. We generated a comparison cohort of 34 patients by selecting patients from our institutional lung SBRT database and matching 2:1 based on the lobe containing tumor and proximity to the bronchial tree. Assessment of migration was performed by rigidly registering the m

SUBMITTER: McDonald AM 

PROVIDER: S-EPMC6333116 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature