16层螺旋CT后处理技术在儿童气管、支气管异物的诊断价值  

Diagnostic value of multislice spiral(MSCT) after-treatment technology in children's trachea and bronchial foreign body

作　　者：夏海泓[1] 王守彪[2] 孙迎晖[1] 林刚[1] 

机构地区：[1]青岛大学医学院附属威海医院CT室,山东威海264200 [2]青岛大学医学院解剖教研室,山东青岛266071

出　　处：《医学影像学杂志》2011年第8期1273-1275,共3页Journal of Medical Imaging

摘　　要：目的:研究16层螺旋CT三维重建及仿真内窥镜技术对儿童气管、支气管异物的诊断价值。方法:使用螺旋CT对22例怀疑儿童气管、支气管异物的病例行胸部CT平扫,图像重建后传送至工作站处理,使用多平面重建(MPR)及仿真内窥镜技术(CTVB)进行分析,全部病例经纤维支气管镜(FOB)或临床证实。结果:22例中,CTVB显示I～III级气管支气管100%,显示第IV级支气管45.5%;MPR显示I～III级气管支气管100%,显示第IV级支气管50.0%;FOB显示I～II级气管支气管100%,显示第III级支气管72.7%。结论:多层螺旋CT三维重建及仿真内窥镜技术能准确显示气管、支气管异物的位置、大小、形态及阻塞程度,是一种准确、安全的无创性诊断方法,给临床诊断、治疗提供直观的影像学资料,具有较高的诊断价值。Objective：To study the diagnostic value of multislice spiral （MSCT） 3D reconstruction and CT virtual bronchoscopy （CTVB） in childi＇en＇s trachea and bronchial foreign body. Methods.. Spiral scans were performed by a MSCT in 22 pediatric chest. The reformed image were transported to a workstation by which 3-D reconstructions were performed with a software named MPR and CTVB were generated. Results .. Bronchi were manifested 100 % in grades I-III, 45.5 % were revealed in grade IV with CTVB, respectively. MPR can display grade I- III, 50. 0%was revealed in grade IV with MPR. CTVB can only enter grade I-III bronchi, only 72.7$ of lobar bronchi can be manifested by FOB. Conclusion 3- D and CTVB in MSCT can accurately show foreign body in trachea and bronchia in terms of l ocation, size, shape and degree of obstruction. It is an accurate and safe noninvasive diagnostic method and can provide image data to clinical diagnosis and therapy. The method has a high diagnostic value.

关 键 词：体层摄影术 X线计算机 儿童 气管支气管异物 

分 类 号：R814.42[医药卫生—影像医学与核医学] R725.6[医药卫生—放射医学]