早期乳腺癌保乳术后俯卧位全乳放疗研究进展

早期乳腺癌患者保乳术后全乳放射治疗（简称放疗）可有效提高局部控制率和降低术后复发风险，俯卧位全乳放疗较仰卧位对于部分大体积乳腺患者可带来明显的剂量学优势和美容效果。随着多种放疗技术和辅助工具的出现，俯卧位全乳放疗对靶区和不同危及器官（如心、肺等）的照射体积和剂量也发生了不同变化。有机构已初步探寻出患者在无需俯卧位和仰卧位双重模拟CT扫描和计划评估的情况下便可选择出较优治疗体位的预测模型，并尝试运用于临床实践中。本文就早期乳腺癌保乳术后俯卧位全乳放疗发展至今的相关技术对比及在剂量研究方面的进展做一简要综述。

Research progress on the whole breast radiotherapy in prone position after breast-conserving surgery for early breast cancer

Whole breast radiotherapy after breast-conserving surgery for early-stage breast cancer increases local control rate and reduces postoperative recurrence. Compared to supine position, whole breast radiation therapy in the prone position provides dosimetric advantages and cosmetic outcomes in patients with large breasts. With the development of various radiotherapy techniques and tools, the radiation volume and dose for target and organs at risk (such as heart and lung) have changed. Models for the prediction of preferable treatment position in breast radiotherapy without the need for CT simulation and plan evaluation in both positions have been developed and implemented in radiotherapy practice. This paper briefly reviews the progression in the techniques and dosimetry of whole breast radiotherapy in prone position after breast-conserving surgery for early breast cancer.