Investigating the impact of breast positioning control on physical treatment parameters in multi-catheter breast brachytherapy.

ABSTRACT:

Purpose

To assess the effects of a workflow for reproducible patient and breast positioning on implant stability during high-dose-rate multi-catheter breast brachytherapy.

Methods

Thirty patients were treated with our new positioning control workflow. Implant stability was evaluated based on a comparison of planning-CTs to control-CTs acquired halfway through the treatment. To assess geometric stability, button-button distance variations as well as Euclidean dwell position deviations were evaluated. The latter were also quantified within various separated regions within the breast to investigate the location-dependency of implant alterations. Furthermore, dosimetric variations to target volume and organs at risk (ribs, skin) as well as isodose volume changes were analyzed. R

SUBMITTER: Karius A 

PROVIDER: S-EPMC10784386 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature