A comparison of contralateral breast dose due to breast cancer radiotherapy using two different treatment machines in a radiotherapy center

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BOUZARJOMEHRI F.; Rezaie Yazdi M.

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Journal Paper

Paper Information

Journal: International Journal of Radiation Research Year:2017 | Volume:15 | Issue:3 Page(s): 295-299

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Title

A comparison of contralateral breast dose due to breast cancer radiotherapy using two different treatment machines in a radiotherapy center

Author(s)

BOUZARJOMEHRI F. | Rezaie Yazdi M. | Issue Writer Certificate

Keywords

Contralateral breast

radiotherapy

LINAC

thermoluminescence dosimetry

secondary cancer

Abstract

Background: The radia on dose received by Contralateral breast (CLB) is one of the concerns of breast radiotherapy, because it may lead to the induc on of secondary breast cancer. The aim of this study was to evaluate the CLB surface dose in the breast treatment in Yazd radiotherapy center. Materials and Methods: The surface dose of CLB was measured using TLD dosimetry in 50 cancer breast pa ents. The TLD chips were placed at four points on the each of CLBs. The pa ents were treated by 6MV photon beams of Oncor (physical wedge) and Compact (motorized wedge) LINAC. The TLD chips were placed on the surfaces of CLB during the medial and lateral tangent radia on fields in one of radiotherapy frac ons. Results: The mean percent of prescrip on dose of the CLB surface doses on the point 1 in the two LINAC (Oncor & Compact) were significantly different. The mean of CLB surface doses of point 1 in the physical and the motorized wedge techniques were 5. 78 and 7. 84 percent of prescrip on dose of breast cancer, respec vely. The medial and lateral fields' contribu on from 7. 4% surface dose of CLB were 5. 8% and 1. 6%, respec vely. Conclusion: In Shahid Ramezanzadeh radiotherapy center, the CLB surface dose due to breast cancer radiotherapy by the Compact machine (7. 84 %) was significantly more than the allowable value (6% prescrip on dose). The CLB does due to the medial field beam was more than the lateral field.

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APA: Copy

BOUZARJOMEHRI, F., & Rezaie Yazdi, M.. (2017). A comparison of contralateral breast dose due to breast cancer radiotherapy using two different treatment machines in a radiotherapy center. INTERNATIONAL JOURNAL OF RADIATION RESEARCH, 15(3), 295-299. SID. https://sid.ir/paper/286885/en

Vancouver: Copy

BOUZARJOMEHRI F., Rezaie Yazdi M.. A comparison of contralateral breast dose due to breast cancer radiotherapy using two different treatment machines in a radiotherapy center. INTERNATIONAL JOURNAL OF RADIATION RESEARCH[Internet]. 2017;15(3):295-299. Available from: https://sid.ir/paper/286885/en

IEEE: Copy

F. BOUZARJOMEHRI, and M. Rezaie Yazdi, “A comparison of contralateral breast dose due to breast cancer radiotherapy using two different treatment machines in a radiotherapy center,” INTERNATIONAL JOURNAL OF RADIATION RESEARCH, vol. 15, no. 3, pp. 295–299, 2017, [Online]. Available: https://sid.ir/paper/286885/en

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