全肺及患侧肺正常肺组织高、低剂量区肺体积预测急性放射性肺炎的价值
发布时间:2018-12-14 15:44
【摘要】:目的:观察非小细胞肺癌根治性放疗患者急性放射性肺炎发生情况,探讨全肺及患侧肺正常肺组织高、低剂量区肺体积对急性放射性肺炎的预测价值。方法:2013年8月至2015年11月收治的经病理证实行根治性放疗的非小细胞肺癌患者174例。放疗剂量60~70 Gy,≤64 Gy 97例,64 Gy 77例。化疗方案为紫衫类联合铂类一线方案,同期放化疗19例,序贯放化疗155例。利用剂量体积直方图计算正常肺V5~V30、MLD、V5ipsi(肿瘤同侧肺V5)~V30ipsi、MLDipsi。根据CTC 4.0标准评估肺损伤。对急性放射性肺炎进行卡方检验、Logistic因素分析及受试者工作特征曲线分析。结果:174例患者中发生≥2级急性放射性肺炎26例(14.94%),3级11例(6.32%),4级2例(1.15%)。单因素分析同期放化疗、COPD、V5~V30、MLD、V5ipsi~V30ipsi、MLDipsi均与≥2级急性放射性肺炎相关,多因素Logistic回归分析V5、V20ipsi、MLD是与≥2级ARP发生相关的独立危险因素。ROC曲线分析V5、V20ipsi、MLD界值分别为62.38%、47.14%、16.85 Gy。根据V5、V20ipsi值对174例患者筛选入组,B组V562%+V20ipsi≥47%,C组V5≥62%+V20ipsi47%,D组V5≥62%+V20ipsi≥47%。C、D两组卡方检验差异具有统计学意义。结论:剂量学参数V5、V20ipsi、MLD与急性放射性肺炎发生相关,与V5相比,限制V20ipsi不超过界值可能会更有效降低急性放射性肺炎发生率。
[Abstract]:Objective: to observe the incidence of acute radiation pneumonia in patients with non-small cell lung cancer (NSCLC) treated by radical radiotherapy, and to explore the predictive value of lung volume in the whole lung and the affected lung in high and low dose areas for acute radiation pneumonia. Methods: from August 2013 to November 2015, 174 patients with NSCLC underwent radical radiotherapy with pathological syndrome. The radiotherapy dose was 6070 Gy, 鈮,
本文编号:2378891
[Abstract]:Objective: to observe the incidence of acute radiation pneumonia in patients with non-small cell lung cancer (NSCLC) treated by radical radiotherapy, and to explore the predictive value of lung volume in the whole lung and the affected lung in high and low dose areas for acute radiation pneumonia. Methods: from August 2013 to November 2015, 174 patients with NSCLC underwent radical radiotherapy with pathological syndrome. The radiotherapy dose was 6070 Gy, 鈮,
本文编号:2378891
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