CT仿真支气管内窥镜的临床应用

目的 评价CT仿真支气管内窥镜（VB）成像方法及临床应用。方法 对50例CTVB检查经纤维支气管镜或病理证实的患者进行分析。中心型肺癌27例，肺癌术后4例，支气管憩室1例，正常支气管81例。将螺旋CT扫描数据传室Aclvantage Windows3.1版本工作站（GE Medical Systems)，用Smmoth Navigator软件功能建成CTVB图像进行分析。结果 CTVB能100％地观察到以上支气管和80％以上亚段支气管。27例中心型肺癌发现支气管狭窄23处，闭塞4处，肺癌术后支气管残端4处，右中间段支气管憩室1例。结论 CTVB是一种极其优越的无创性观察支气管腔的方法，与纤维支气管镜相比，有其优点和限度。分析图像时结合原始图像和MPR图像，则可提供腔壁和腔外的更多信息。

CT Virtual bronchoscopy: clinical application

Objictive To evaluate the clinical application of CT virtual bronchoscopy(VB) in bronchial pulmonary diseases. Methods Fifty cases were studied with CTVB. All patients were proved with fiberoptic bronchoscopy or pathology.Among the 50 cases lung cancer of center type( n =27),post operative lung cancer ( n =4),bronchial diverticulum ( n =1),normal bronchus( n =18).CTVB was performed using navigator smooth software on the workstation(Advantege Windows 3.1 GE Medical Systems). Results CTVB could reveal 100% segmental bronchus and more than 80% subsegmental bronchus mimicing fiberoptic bronchoscopy. Bronchial stenosis ( n =23) and occlusion (n =4)due to tumors. Post operative bronchial stump( n =4) appeared as smooth blind end without recurrence of tumors as confirmed by fiberoptic endoscopy. Conclusion CTVB is a new method of noninvasive bronchial pulmonary diseases. Comparing with fiberoptic bronchoscopy, CTVB possess incomparable advantages. However CTVB can not replace conventional bronchoscopy for demonstrating mucosal abnormalities and for obtaining histolo gic samples.