Dose-Volume Analysis of Lung and Heart according to Respiration in Breast Cancer Patients Treated with Breast Conserving Surgery
- Authors
- Shim, Jae-Goo; Kim, Jeong-Koo; Park, Won; Seo, Jeong-Min; Hong, Chae-Sun; Song, Ki-Won; Lim, Cheong-Hwan; Jung, Hong-Ryang; Kim, Chan-Hyeong
- Issue Date
- Mar-2012
- Publisher
- KOREAN BREAST CANCER SOC
- Keywords
- Breast neoplasms; Heart; Lung; Radiotherapy
- Citation
- JOURNAL OF BREAST CANCER, v.15, no.1, pp.105 - 110
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF BREAST CANCER
- Volume
- 15
- Number
- 1
- Start Page
- 105
- End Page
- 110
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/166152
- DOI
- 10.4048/jbc.2012.15.1.105
- ISSN
- 1738-6756
- Abstract
- Purpose: Adjuvant radiotherapy of breast cancer using a photon tangential field incurs a risk of late heart and lung toxicity. The use of free breathing (FB), expiration breath hold (EBH), and deep inspiration breath hold (DIBH) during tangential breast radiotherapy as a means of reducing irradiated lung and heart volume was evaluated. Methods: In 10 women with left-sided breast cancer (mean age, 44 years) post-operative computed tomography (Cl) scanning was done under different respiratory conditions using FB, EBH, and DIBH in 3 CT scans. For each scan, an optimized radiotherapy plan was designed with 6 MV photon tangential fields encompassing the clinical target volume after breast-conserving surgery. Results: The results of dose-volume histograms were compared using three breathing pattern techniques for the irradiated volume and dose to the heart. A significant reduction dose to the irradiated heart volume for the DIBH breathing technique was compared to FB and EBH breathing techniques (p<0.05). Conclusion: This study oemonstrated that the irradiated heart volume can be significantly reduced in patients with left-sided breast cancer using the DI3H breathing technique for tangential radiotherapy.
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