实用肿瘤学杂志 ›› 2011, Vol. 25 ›› Issue (4): 329-332.doi: 10.3969/j.issn.1002-3070.2011.04.007

• 论著 • 上一篇    下一篇

螺旋CT三维重建技术对非小细胞肺癌放射治疗靶区勾画的研究

巴志昌, 冯丽娜, 张颖俏, 胡宝茹, 尚乃舰   

  1. 哈尔滨医科大学附属第三医院放射诊断科(哈尔滨 150081)
  • 收稿日期:2011-06-10 出版日期:2011-04-25 发布日期:2012-02-21
  • 通讯作者: 尚乃舰,E-mail:shangnaijian@126.com
  • 作者简介:巴志昌,男,(1982-),住院医师,从事恶性肿瘤的影像学诊断

Research on spiral CT three-dimensional reconstruction technique for non-small lung cancer radiotherapy target

BA Zhichang,FENG Lina,ZHANG Yingqiao,HU Baoru,SHANG Naijian   

  1. Department of Radiology,The third Affiliated Hospital of Harbin Medical University,Harbin 150081
  • Received:2011-06-10 Online:2011-04-25 Published:2012-02-21

摘要: 目的 研究螺旋CT三维重建技术对非小细胞肺癌放射治疗靶区勾画准确性的影响。方法 应用螺旋CT扫描,图像后处理应用TOMOCON图像融合系统。对肺内病灶分别以常规二维CT及二维CT结合螺旋CT三维重建技术进行肿瘤靶区勾画、体积计算及靶区横径及纵径比较。结果 48例肺癌病人CT定位扫描后常规二维CT靶区勾画结果:靶区体积(GTV)18.85~380.63 cm3,中位体积103.60 cm3;二维CT结合螺旋CT三维重建勾画结果:靶区体积(GTV)24.05~420.57 cm3,中位体积130.55 cm3。两组数据经配对t检验,分析结果P=0.037,有统计学意义。两组勾画结果显示横径平均差异为(1.5±0.5)mm。纵径平均差异为(3.0±1.5)mm。结论 螺旋CT三维重建技术在肺癌放射治疗靶区勾画中的应用价值是值得肯定的。可以作为常规CT横断面扫描图像勾画的一个有力补充,使得肺癌放射治疗靶区勾画的准确性大大提高。

Abstract: Objective To study spiral CT three-dimensional reconstruction technique for non-small cell lung cancer radiotherapy target volume delineation of the accuracy.Methods Application of spiral CT scan and TOMOCON image system.In lung lesions of normal two-dimensional CT and respectively by two-dimensional CT combined with spiral CT three-dimensional reconstruction technique target volume.The target volume is calculated and compared longitudinal diameter and size.Results 48 cases of lung cancer patients CT Tumor image:gross tumor volume(18.85~380.63cm3),median volume 103.60cm3;Two-dimensional CT combined with spiral CT three-dimensional reconstruction results:target volume(24.05~420.57cm3)median volume 130.55cm3.Two sets of data by matching t test,analysis results P= 0.037.Two groups of results showed that the average diameter difference is 1.5±0.5mm.Longitudinal diameter difference is 3.0±1.5mm on average.Conclusions Spiral CT three-dimensional reconstruction technique is advantaged to delineate non-small lung cancer radiotherapy target volume.It is a complement of conventional CT scan in non-small cell lung cancer radiotherapy target volume delineation.

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