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accelerated partial breast irradiation:Current evidence and future developments

Cancer Innovation 2024年第1期3卷 104-112页

作者： Dandan Song Honghong Zhang Chengbo Ren Ning Zhan Liangxi Xie Wenjia Xie Department of Radiation Oncology Xiang'an Hospital of Xiamen UniversityCancer Research CenterSchool of MedicineXiamen UniversityXiang'anXiamenChina Department of Radiation Oncology The First Affiliated Hospital of Hebei North UniversityZhangjiakouHebeiChina

Whole breast irradiation after breast-conserving surgery for early breast cancer has become one of the standard treatment modes for breast cancer and yields the same effect as radical *** partial breast irradiation(APBI)as a substitute for whole breast irradiation for patients with early breast cancer is a hot spot in clinical *** is characterised by simple high-dose local irradiation of the tumour bed in a short time,thus improving convenience for patients and saving *** implementation methods of APBI mainly include brachytherapy,external beam radiation therapy,and intraoperative *** review provides an overview of the clinical effects and adverse reactions of the main technologies of APBI and discusses the prospects for the future development of APBI.

关键词： accelerated partial breast irradiation brachytherapy breast cancer breast conserving surgery external beam radiation therapy intraoperative radiotherapy

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Feasibility and acute toxicity of 3-dimensional conformal external-beam accelerated partial-breast irradiation for early-stage breast cancer after breast-conserving surgery in Chinese female patients

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Chinese Medical Journal 2011年第9期124卷 1305-1309页

作者： LI Feng-yan HE Zhen-yu XUE Ming CHEN Li-xin WU San-gang GUAN Xun-xing National Key Laboratory of Oncology in South China Department of Radiotherapy Cancer Center of Sun Yat-sen University Guangzhou Guangdong 510060 China Department of Radiotherapy the Centre Hospital of Xinxiang Xinxiang Henan 453000 China

Background A growing number of studies worldwide have advocated the replacement of whole-breast irradiation with accelerated partial breast irradiation using three-dimensional conformal external-beam radiation （APBI-3DCRr） for early-stage breast cancer. But APBI can be only used in selected population of patients with early-staged breast cancer. It is not replacing the whole breast radiotherapy. This study aimed to examine the feasibility and acute normal tissue toxicity of the APBI-3DCRT technique in Chinese female patients who generally have smaller breasts compared to their Western *** From May 2006 to December 2009, a total of 48 Chinese female patients （with early-stage breast cancer who met the inclusion criteria） received APBI-3DCRT after breast-conserving surgery at Sun Yat-sen University Cancer Center. The total dosage from APBI-3DCRT was 34 Gy, delivered in 3.4 Gy per fractions, twice per day at intervals of at least six hours. The radiation dose, volume of the target area and volume of irradiated normal tissues were *** toxicity was evaluated according to the Common Toxicity Criteria （CTC） *** Among the 48 patients, the planning target volume for evaluation （PTVE） was （90.42±9.26） cm3, the ipsilateral breast volume （IBV） was （421.74±28.53） cm3, and the ratio between the two was （20.74±5.86）%. Evaluation of the dosimetric characteristics of the PTVE revealed excellent dosimetric results in 14 patients and acceptable results in 34 patients. The dose delivered to the PTVE ranged from 93% to 110% of the prescribed dose. The average ratio of the volume of PTVE receiving 95% of the prescription dose （V95） was （99.26±0.37）%. The habituation index （HI） and the conformity index （CI） were 1.08±0.01 and 0.72±0.02, respectively, suggesting good homogeneity and conformity of the dose delivered to the target field. The radiation dose to normal tissues and organs was within the dose *** experienced mild acute toxicit

关键词： accelerated partial breast irradiation 3-dimensional conformal external-beam irradiation feasibility acute toxicity

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