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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 5 0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 2 7例 ,肺癌术后 4例 ,支气管憩室 1例 ,正常支气管 18例。将螺旋 CT扫描数据传至 Ad-vantage Windows 3.1版本工作站 (GE Medical Systems) ,用 Smooth Navigator软件功能建成 CTVB图像进行分析。 结果 CTVB能 10 0 %地观察到段以上支气管和 80 %以上亚段支气管。 2 7例中心型肺癌发现支气管狭窄 2 3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。
Objective To evaluate CT virtual bronchoscopy (VB) imaging and its clinical application. Methods 50 patients with CTVB by bronchoscopy or pathological confirmed patients were analyzed. 27 cases of central lung cancer, 4 cases of postoperative lung cancer, 1 case of bronchial diverticulum, 18 cases of normal bronchus. Spiral CT scan data was sent to the Ad-vantage Windows 3.1 workstation (GE Medical Systems) and CTVB images were analyzed using the Smooth Navigator software. Results CTVB can detect more than 100% of the bronchial segment and more than 80% of the sub-bronchus. Twenty-seven cases of central lung cancer were found in 23 bronchial stenoses, 4 occlusions, 4 postoperative bronchial stumps in lung cancer, and 1 bronchial diverticulum in the right middle segment. Conclusion CTVB is an extremely superior noninvasive method of observing the bronchial lumen. Compared with bronchofibroscopy, CTVB has its advantages and limitations. Combining the original image with the MPR image while analyzing the image provides more information on the luminal wall and extraluminal.