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目的对胸部肿瘤放射治疗后合并放射性肺炎患者的CT表现进行分析。方法采用文献回顾分析方式,对45例接受胸部肿瘤放射性治疗后合并放射性肺炎患者CT影像学检查进行详细分析,主要针对患者胸腔内肺部的病变进行检查。结果本组病例中33例患者处于急性发病期,其中6例在放射性治疗后第37~40天发病,9例在放射性治疗后第41~50天发病,18例患者在放射性治疗后第51~90天发病。另外12例患者肺炎发生在慢性期。对患者因胸部肿瘤而接受放射性治疗产生的放射性肺炎进行CT检查后可以看出,患者的肺炎处于急性期时,其病灶边界较为清晰或不清晰,属于实变影,并可见支气管充气征。而处于慢性期时,其病灶边界清晰,可见明显的条状阴影和网格影,肺气肿症状明显,横膈上移,纵隔平移,肺部轮廓可见塌陷。结论 CT检查能够有效鉴别胸部肿瘤放射性治疗所致放射性肺炎,为相关治疗人员提供可靠依据,帮助其确定患者病情。
Objective To analyze the CT findings of patients with radiation pneumonitis after radiotherapy of thoracic tumors. Methods A retrospective analysis of 45 cases of chest radiotherapy combined with radiation pneumonitis in patients with CT imaging were analyzed in detail, mainly for the detection of lung lesions in patients with chest. Results 33 patients in this group were in the acute stage of onset, of which 6 cases were onset on days 37 to 40 after radiotherapy, 9 cases were on days 41 to 50 after radiotherapy, and 18 cases were on stage 51 ~ 90 days disease. Another 12 patients had pneumonia in the chronic phase. CT examination of patients with radiation pneumonitis due to radiation therapy of the chest tumor shows that when the patient’s pneumonia is acute, the boundary of the lesion is clear or unclear, which is a consolidation curve and the bronchial inflatable sign can be seen. In the chronic phase, the lesions clear boundary, visible strip shadow and grid shadow, emphysema obvious symptoms, diaphragm up shift, mediastinal translation, the outline of the lung collapse can be seen. Conclusions CT examination can effectively identify radiation pneumonitis caused by radiotherapy of thoracic neoplasms and provide a reliable basis for the relevant treatment personnel to help them determine the patient’s condition.