Evaluation of the effect of silicone implants in a breast radiotherapy treatment: A Monte Carlo approach

被引：1

作者：

Justino, Paula de Cassia ^{[1
]}

Neves, Lucio Pereira ^{[1
,2
]}

Belinato, Walmir ^{[3
]}

da Silva, Rogerio Matias Vidal ^{[4
]}

Ribeiro, Cintia de Almeida ^{[5
]}

Santos, William de Souza ^{[1
,2
]}

Perini, Ana Paula ^{[1
,2
]}

机构：

[1] Univ Fed Uberlandia, Fac Engn Elect, Programa Posgraduacao Engn Biomed, Uberlandia, Brazil

[2] Univ Fed Uberlandia, Inst Fis, Uberlandia, Brazil

[3] Inst Fed Bahia, Campus Vitoria Conquista, Vitoria Da Conquista, Brazil

[4] Inst Canc Ceara, Fortaleza, Brazil

[5] Policlin Agostino Gemelli, Rome, Italy

来源：

RADIATION PHYSICS AND CHEMISTRY | 2023年 / 213卷

关键词：

Dosimetry; Radiotherapy; Monte Carlo simulation; Breast cancer; Virtual anthropomorphic phantom; CANCER RADIOTHERAPY;

D O I：

10.1016/j.radphyschem.2023.111249

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Since 2020, breast cancer is the most common among women, and in South America, Brazil presents the highest rates. After mastectomy and breast reconstruction, commonly silicone breast implants are used to replace the removed breast tissue, and radiation therapy is performed to reduce its recurrence in the remaining tissues and nearby lymph nodes. The Monte Carlo simulation using the MCNP6.2 code accompanied by a female virtual anthropomorphic phantom (FASH3) were utilized to simulate the radiation therapy scenario. These tools were used to determine the absorbed doses in the patient's organs and tissues, evaluating the effect of the breast silicone prosthesis on the dose distribution, applying a dose of 50.4 Gy in a LINAC Varian 2100c with a 6 MV beam. The eye lens and the gonads suffered the highest effects of scattered radiation by the silicone prosthesis, increasing the absorbed dose values by 2.10% and 1.51%, respectively, when compared to normal breast tissue.

引用

页数：8

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