乳腺癌放射治疗后放射性肺反应的影像改变(附62例分析)

The Radiographic Changes of Pulmonary Radiation Reactions in Breast Cancer Patients Treated with Radiation Therapy

目的：探讨乳腺癌术后放疗患者放射性肺反应的影像学特点及其临床意义。材料和方法：１９９２年６月～１９９５年１月共收治６２例乳腺癌术后三野放疗病例，收集其各期胸片和ＣＴ资料，进行分析总结。结果：６２例中，７例发生早期放射性肺反应，６０例发生晚期放射性肺反应，其影像改变特点为放射性肺反应病灶不超出Ｘ线放疗野范围。结论：乳腺癌术后放疗患者，Ｘ线放疗野内的肺组织损伤不可避免，但由于肺受照射体积较小，所以对患者肺功能无明显影响。

Purpose:To study the radiographic property of pulmonary radiation reactions in breast cancer patients treated by postmastectomy irradiation and evaluate the clinical significance of the pulmonary radiation reactions.Materials and Methods:62 breast cancer patients were treated by three fields postoperative radiotherapy from June,1992 to January ,1995.We review the chest X rays and CT scans in difference times of these patients.Results:In 62 patients,7 ones had early pulmonary radiation reactions and 60 ones had late pulmonary radiation reactions.The radiographic properties are that the radiographic changes of pulmonary radiation reactions correspond to the X ray irradiated regions of the lung.Conclusion:The pulmonary radiation reactions in X ray treatment portal of the breast cancer patients are unavoidable.Because the lung damaged volume is little,there are no gross abnormalities in lung function.