Trends in Radiation Dose to the Contralateral Breast During Breast Cancer Radiation Therapy.

ABSTRACT: Over 4 million survivors of breast cancer live in the United States, 35% of whom were treated before 2009. Approximately half of patients with breast cancer receive radiation therapy, which exposes the untreated contralateral breast to radiation and increases the risk of a subsequent contralateral breast cancer (CBC). Radiation oncology has strived to reduce unwanted radiation dose, but it is unknown whether a corresponding decline in actual dose received to the untreated contralateral breast has occurred. The purpose of this study was to evaluate trends in unwanted contralateral breast radiation dose to inform risk assessment of second primary cancer in the contralateral breast for long-term survivors of breast cancer. Individually estimated radiation absorbed doses to the four quadrants

SUBMITTER: Watt GP 

PROVIDER: S-EPMC10684055 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature