Verification of field match lines in whole breast radiation therapy using Cherenkov imaging.

ABSTRACT:

Purpose

In mono-isocentric radiation therapy treatment plans designed to treat the whole breast and supraclavicular lymph nodes, the fields meet at isocenter, forming the match line. Insufficient coverage at the match line can lead to recurrence, and overlap over weeks of treatment can lead to increased risk of healthy tissue toxicity. Cherenkov imaging was used to assess the accuracy of delivery at the match line and identify potential incidents during patient treatments.

Methods and materials

A controlled calibration was constructed from the deconvolved Cherenkov images from the delivery of a modified patient treatment plan to an anthropomorphic phantom with introduced separation and overlap. The trend from this calibration was then used to evaluate the field match line fo

SUBMITTER: Hachadorian R 

PROVIDER: S-EPMC8686843 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature