全肺及患側(cè)肺正常肺組織高、低劑量區(qū)肺體積預(yù)測急性放射性肺炎的價值
發(fā)布時間:2018-12-14 15:44
【摘要】:目的:觀察非小細(xì)胞肺癌根治性放療患者急性放射性肺炎發(fā)生情況,探討全肺及患側(cè)肺正常肺組織高、低劑量區(qū)肺體積對急性放射性肺炎的預(yù)測價值。方法:2013年8月至2015年11月收治的經(jīng)病理證實行根治性放療的非小細(xì)胞肺癌患者174例。放療劑量60~70 Gy,≤64 Gy 97例,64 Gy 77例;煼桨笧樽仙李惵(lián)合鉑類一線方案,同期放化療19例,序貫放化療155例。利用劑量體積直方圖計算正常肺V5~V30、MLD、V5ipsi(腫瘤同側(cè)肺V5)~V30ipsi、MLDipsi。根據(jù)CTC 4.0標(biāo)準(zhǔn)評估肺損傷。對急性放射性肺炎進(jìn)行卡方檢驗、Logistic因素分析及受試者工作特征曲線分析。結(jié)果:174例患者中發(fā)生≥2級急性放射性肺炎26例(14.94%),3級11例(6.32%),4級2例(1.15%)。單因素分析同期放化療、COPD、V5~V30、MLD、V5ipsi~V30ipsi、MLDipsi均與≥2級急性放射性肺炎相關(guān),多因素Logistic回歸分析V5、V20ipsi、MLD是與≥2級ARP發(fā)生相關(guān)的獨立危險因素。ROC曲線分析V5、V20ipsi、MLD界值分別為62.38%、47.14%、16.85 Gy。根據(jù)V5、V20ipsi值對174例患者篩選入組,B組V562%+V20ipsi≥47%,C組V5≥62%+V20ipsi47%,D組V5≥62%+V20ipsi≥47%。C、D兩組卡方檢驗差異具有統(tǒng)計學(xué)意義。結(jié)論:劑量學(xué)參數(shù)V5、V20ipsi、MLD與急性放射性肺炎發(fā)生相關(guān),與V5相比,限制V20ipsi不超過界值可能會更有效降低急性放射性肺炎發(fā)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,
本文編號: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,
本文編號:2378891
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