64层VCT图像后处理技术在气管支气管异物中的临床应用  

Clinical Application of 64-detector Row VCT and Post-processing Techniques in the Tracheobronchial Foreign Body

作　　者：刘超[1,2] 汪令生[1,2] 陈义加[1,2] 陈伦刚[1,2] 

机构地区：[1]郧阳医学院附属医院 [2]十堰市太和医院CT室,湖北442000

出　　处：《放射学实践》2010年第2期156-159,共4页Radiologic Practice

摘　　要：目的:探讨64层VCT多种图像后处理显示技术在气管支气管异物中的临床应用价值。方法:对30例疑为气管支气管异物患者实施肺螺旋CT平扫,结合多平面重组(MPR)、CT仿真内镜(CTVE)、最小密度投影(MinIP)、容积再现(VR)、透明成像(Reysum)、表面遮盖显示法(SSD)、图像反转等图像后处理分析各种重组方法对支气管异物的显示情况及诊断价值。结果:30例患者均获清晰图像,支气管异物23例,其中右支气管异物15例,左支气管异物8例,全部病例经临床支气管镜证实,7例正常。各种重组方法相结合可清楚显示气管、支气管异物的位置、形状、大小及异物所致气管、支气管狭窄的部位、程度和外形改变,其中MPR、MinIP、VR、图像反转这4种后处理显示率最高。结论:64层VCT图像后处理技术在气管支气管异物诊断中具有重要的临床应用价值。Objective：To investigate the clinical application value of the 64-detector row CT and post-processing techniques in tracheobronchial foreign body. Methods：30 cases of suspected tracheobronchial foreign bocly underwent spiral CT lung scan, combined with multi-planar reconstruction （MPR）, CT virtual endoscopy （CTVE）, minimum intensity projection （MinIP） ,volume rendering （VR）,transparent lung （Reysum） and shaded surface display （SSD）. The image quality of different techniques for demonstration of the foreign body was analyzed and evaluated. Results：30 patients obtained clear images including 23 cases of bronchial foreign body,of which 15 cases in the right and 8 cases in the left bronchus. All cases were confirmed by clinical bronchoscopy, seven cases were normal. Combined method of reconstruction could clearly demonstrate location, shape and size tracheobronchial foreign body and foreign body-induced tracheobronchial changes. There were high display rates in the image retro processing of MPR, MinIP, VR and image flip. Conclusion： 64-detector row CT with post-processing technology in the diagnosis of tracheobronchial foreign body is of important clinical value.

关 键 词：气管 支气管 异物 图像处理 计算机辅助 

分 类 号：R768.1[医药卫生—耳鼻咽喉科] R816.96[医药卫生—临床医学]