Optimizing breast cancer treatment efficacy with intensity-modulated radiotherapy
Optimizing breast cancer treatment efficacy with intensity-modulated radiotherapy
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DOI:
10.1016/s0360-3016(02)03746-x
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发表时间:
2002-12-01
影响因子:
7
通讯作者:
Wong, J
中科院分区:
文献类型:
--
作者:
Vicini, FA;Sharpe, M;Wong, J
Purpose: To present our clinical experience using intensity-modulated radiation therapy (IMRT) to improve dose uniformity and treatment efficacy in patients with early-stage breast cancer treated with breast-conserving therapy.Methods and Materials: A total of 281 patients with Stage 0, I, and II breast cancer treated with breast-conserving therapy received whole breast RT after lumpectomy using our static, multileaf collimator (sMLC) IMRT technique. The technical and practical aspects of implementing this technique on a large scale in the clinic were analyzed. The clinical outcome of patients treated with this technique was also reviewed.Results: The median time required for three-dimensional alignment of the tangential fields and dosimetric IMRT planning was 40 and 45 min, respectively. The median number of sMLC segments required per patient to meet the predefined dose-volume constraints was 6 (range 3-12). The median percentage of the treatment given with open fields (no sMLC segments) was 83% (range 38-96%), and the median treatment time was