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Feasibility of commercially available underwear during radiation therapy for breast cancer: build-up and surface dose measurements

Published online by Cambridge University Press:  10 February 2021

Yukihiro Hama Open the ORCID record for Yukihiro Hama [Opens in a new window]
Yukihiro Hama*
Affiliation:
Department of Radiation Oncology, Tokyo-Edogawa Cancer Center, Edogawa Hospital, Tokyo, Japan
*
Author for correspondence: Yukihiro Hama, Departments of Radiology, Edogawa Hospital, 2-24-18 Higashikoiwa, Edogawa-ku, Tokyo133-0052, Japan. E-mail: yjhama2005@yahoo.co.jp
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Abstract

Aim:

When patients receive radiation therapy for breast cancer, they need to take off their underwear to avoid build-up effects. However, it is a mental burden for female patients to take off their underwear at every fraction of radiation therapy. The purpose of this study was to investigate whether commercially available thin underwear can be worn during radiation therapy for breast cancer.

Materials and methods:

In this phantom study, we investigated whether commercially available underwear can be worn during radiation therapy for breast cancer using six thin non-disposable brassieres and one disposable paper brassiere. The dose increase rate (ΔD) was calculated by measuring skin doses with or without each brassiere.

Results:

The mean ΔD values of six non-disposable brassieres were 13.5% (9.0–21.8%), whereas that of disposable ones was 2.0%.

Findings:

Due to the risk of excessive radiation to the skin, wearing commercially available underwear is not recommended during radiation therapy for breast cancer, but a thin disposable paper brassiere may be safe to be used.

Keywords

breast neoplasmdosimetryquality of liferadiation doseradiation therapy
Type
Technical Note
Information
Journal of Radiotherapy in Practice , Volume 21 , Issue 3 , September 2022 , pp. 452 - 453
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Copyright
© The Author(s), 2021. Published by Cambridge University Press

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