SCTPA对周围型肺癌与肺血管改变关系中的临床应用
肺癌；体层摄影术,X线计算机；三维肺血管,,],肺癌；体层摄影术，X线计算机；三维肺血管,1资料与方法,2结果,讨论,[参考文献]
[摘要] 目的 探讨螺旋CT肺血管成像(SCTPA)对周围型肺癌与肺血管改变关系中的临床应用。方法 用TOSHIBA公司的Xvision/Gx型CT机，对30例经临床、病理证实的周围型肺癌患者进行直接增强扫描，层厚2~3 mm，层距2~3 mm，重建间距为1 mm，造影剂注射速度为2.5~3.0 ml/s，后将重建数据传至CT工作站进行表面遮盖法(SSD)重建获得周围型肺癌三维肺血管图像。结果 其中27例周围型肺癌的三维肺血管图像显示因肿瘤生长而形成大量较正常肺血管增粗、紊乱的肿瘤血管，改变了正常肺血管的走行与血流模式。3例未见明显肿瘤血管影形成，阳性率达90%。结论 SCTPA有很重要的临床诊断价值。[关键词] 肺癌；体层摄影术，X线计算机；三维肺血管
Clinical application of SCTPA on peripheral lung cancer and relationship with the alteration of lung vessels
FANG Yongxiong,XU Kaifeng,LIU Yisheng,et al.Department of Radiology,Guangzhou Medical College Liwan Hospital,Guangzhou 510170,China
[Abstract] Objective To deliberate the clinical application of spiral CT pulmonary angiography (SCTPA) on peripheral lung cancer and relationship with the alteration of lung vessels. Methods 30 patients underwent spiral CT pulmonary angiography using Toshiba Xvision＼GX CT scanner with 2～3 mm slice thickness,2～3 mm slice distance,1 mm reconstruction interval and 2.5～3 ml/s contrast medium injection rate,all data were reconstructed by surface shadow display (SSD) to acquire the 3D lung vessel images of peripheral lung cancer in workstation.All cases are proved by surgerypathology or DSA.Results About 27 cases 3D images of peripheral lung cancer can clearly demonstrate the numberless confusion tumor vessels comparing with the normal lung vessels account for the tumor development.SCTPA also can display the abnormal lung vessels direction and the mode of the lung blood flow.3 cases can not display the abnormal tumor vessels,the positive rate is about 90%. Conclusion SCTPA is useful in evaluating diseases of pulmonany vessels. ......
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