肿瘤体积和放疗剂量对局部晚期非小细胞肺癌三维适形放疗预后的影响(1)
【摘要】 目的 探讨肿瘤体积和放疗剂量对局部晚期非小细胞肺癌(NSCLC)三维适形放疗(3D-CRT)预后的影响。方法 78例接受3D-CRT的局部晚期NSCLC患者为研究对象, 利用三维适形放射计划系统和CT扫描勾画相应靶区, 分别定义为GTV-T、GTV-P和GTV-N, 分析各靶区肿瘤体积和放疗剂量对3D-CRT的预后效果。结果 全组研究对象中肿瘤最大直径<5.00 cm的患者生存率高于肿瘤最大直径≥5.00 cm的患者(P<0.05);GTV-T<100.00 cm3的患者生存率明显高于GTV-T≥100.00 cm3的患者(P<0.05)。分层分析显示放疗处方剂量≤66 Gy亚组中, 肿瘤大体体积越小, 生存率越高。结论 应用三维适形放射计划系统和CT扫描所勾画的大体肿瘤体积对接受放疗的NSCLC患者长期生存率有显著影响;对体积小的肿瘤行大剂量放疗对局部晚期NSCLC患者的生存有益。
【关键词】 肿瘤体积;非小细胞肺癌;肺癌预后;放疗剂量
DOI:10.14163/j.cnki.11-5547/r.2015.27.001
, 百拇医药
Influence of gross tumor volume and radiotherapy dose on prognosis of three dimensional conformal radiation therapy for locally advanced non-small cell lung cancer LIU Xing-xiang. Department of Oncology, Taizhou City the Second People’s Hospital, Taizhou 225500, China
【Abstract】 Objective To investigate influence of gross tumor volume and radiotherapy dose on prognosis of three dimensional conformal radiation therapy (3D-CRT) for locally advanced non-small cell lung cancer (NSCLC). Methods There were 78 locally advanced NSCLC patients receiving 3D-CRT as study subjects. Three dimensional conformal radiation planning system and CT screening were applied for delineating corresponding target sections, as GTV-T, GTV-P and GTV-N. Gross tumor volume and radiotherapy dose in each target section were analyzed for their prognosis effects. Results Patients with tumor diameter <5.00 cm had higher survival rate than those with tumor diameter ≥5.00 cm (P<0.05). Patients with GTV-T <100.00 cm3 had obviously higher survival rate than those with GTV-T ≥100.00 cm3 (P<0.05). Stratification analysis showed that in subgroup with radiotherapy dose ≤66 Gy, the survival rate increased while gross tumor volume declined. Conclusion Gross tumor volume shown by three dimensional conformal radiation planning system and CT screening has remarkable influence on long-term survival rate in NSCLC patients. It is also beneficial for locally advanced NSCLC patients receiving large radiotherapy dose for small tumor volume.
, 百拇医药
【Key words】 Gross tumor volume; Non-small cell lung cancer; Prognosis of lung cancer; Radiotherapy dose
临床上肺癌的治疗方法有手术、化疗、放疗和中药治疗等[1], 针对局部晚期的非小细胞肺癌(non-small cell lung cancer, NSCLC), 往往已经失去了手术的最佳时期, 如没有远处转移, 一般可通过局部放疗联合化疗进行治疗。三维适形放射治疗(three-dimensional conformal radiation therapy, 3D-CRT)是目前临床上治疗NSCLC最常用的方式, 放疗技术日趋成熟, 以副反应小广泛被肺癌患者接受, 为了更深入了解3D-CRT对NSCLC预后的作用, 作者随机抽取78例晚期NSCLC患者进行研究, 现将结果报告如下。
1 资料与方法
1. 1 一般资料 随机抽取78例2005年10月~ 2009年9月就诊的局部晚期NSCLC患者为研究对象, 均通过病理学或细胞学确诊为NSCLC, 其中男40例, 女38例, 年龄32~76岁, 平均年龄(50.23±8.59)岁。31例鳞癌, 35例腺癌, 8例大细胞癌, 4例未区分类型。中央型肺癌42例, 周围型肺癌36例。所有患者治疗前检查均无恶性胸水, 均接受放化疗, 其中同期化疗37例, 序贯化疗41例, 化疗主要以铂类为基础的综合化疗方案。, 百拇医药(刘兴祥)
【关键词】 肿瘤体积;非小细胞肺癌;肺癌预后;放疗剂量
DOI:10.14163/j.cnki.11-5547/r.2015.27.001
, 百拇医药
Influence of gross tumor volume and radiotherapy dose on prognosis of three dimensional conformal radiation therapy for locally advanced non-small cell lung cancer LIU Xing-xiang. Department of Oncology, Taizhou City the Second People’s Hospital, Taizhou 225500, China
【Abstract】 Objective To investigate influence of gross tumor volume and radiotherapy dose on prognosis of three dimensional conformal radiation therapy (3D-CRT) for locally advanced non-small cell lung cancer (NSCLC). Methods There were 78 locally advanced NSCLC patients receiving 3D-CRT as study subjects. Three dimensional conformal radiation planning system and CT screening were applied for delineating corresponding target sections, as GTV-T, GTV-P and GTV-N. Gross tumor volume and radiotherapy dose in each target section were analyzed for their prognosis effects. Results Patients with tumor diameter <5.00 cm had higher survival rate than those with tumor diameter ≥5.00 cm (P<0.05). Patients with GTV-T <100.00 cm3 had obviously higher survival rate than those with GTV-T ≥100.00 cm3 (P<0.05). Stratification analysis showed that in subgroup with radiotherapy dose ≤66 Gy, the survival rate increased while gross tumor volume declined. Conclusion Gross tumor volume shown by three dimensional conformal radiation planning system and CT screening has remarkable influence on long-term survival rate in NSCLC patients. It is also beneficial for locally advanced NSCLC patients receiving large radiotherapy dose for small tumor volume.
, 百拇医药
【Key words】 Gross tumor volume; Non-small cell lung cancer; Prognosis of lung cancer; Radiotherapy dose
临床上肺癌的治疗方法有手术、化疗、放疗和中药治疗等[1], 针对局部晚期的非小细胞肺癌(non-small cell lung cancer, NSCLC), 往往已经失去了手术的最佳时期, 如没有远处转移, 一般可通过局部放疗联合化疗进行治疗。三维适形放射治疗(three-dimensional conformal radiation therapy, 3D-CRT)是目前临床上治疗NSCLC最常用的方式, 放疗技术日趋成熟, 以副反应小广泛被肺癌患者接受, 为了更深入了解3D-CRT对NSCLC预后的作用, 作者随机抽取78例晚期NSCLC患者进行研究, 现将结果报告如下。
1 资料与方法
1. 1 一般资料 随机抽取78例2005年10月~ 2009年9月就诊的局部晚期NSCLC患者为研究对象, 均通过病理学或细胞学确诊为NSCLC, 其中男40例, 女38例, 年龄32~76岁, 平均年龄(50.23±8.59)岁。31例鳞癌, 35例腺癌, 8例大细胞癌, 4例未区分类型。中央型肺癌42例, 周围型肺癌36例。所有患者治疗前检查均无恶性胸水, 均接受放化疗, 其中同期化疗37例, 序贯化疗41例, 化疗主要以铂类为基础的综合化疗方案。, 百拇医药(刘兴祥)