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目的：介绍ＣＴ 仿真支气管镜（ＣＴＶＢ） 并评价其在支气管肺癌诊断中的应用价值。方法：２１ 例怀疑支气管肺癌病人行螺旋ＣＴ薄层（３ ～５ｍｍ） 扫描，将图像数据通过软件重建图像获得支气管镜效果，即ＣＴＶＢ，共观察气管支气管５９ 处。将观察结果与手术、纤维支气管镜（ＦＯＢ） 所见及所获病理相对照。结果：ＣＴＶＢ 显示支气管管腔内壁、腔内病变、支气管腔等形态与ＦＯＢ 相似，并能显示支气管严重梗阻远端的情况，但特异性不强；ＣＴＶＢ 与轴ＣＴ 相结合能更好显示支气管病变的部位、范围及与周围组织的关系。ＣＴＶＢ 指导纤维支气管镜活检，为术前判断肺癌Ｔ 分期及确定手术方案提供了重要资料。结论：ＣＴＶＢ 是支气管肺癌诸多检查方法的一种极好补充。
Objective: To introduce CT virtual bronchoscopy (CTVB) and evaluate its value in the diagnosis of bronchogenic carcinoma. Methods: Twenty-one patients suspected of bronchogenic carcinoma were scanned with thin-slice spiral CT (3 ~ 5mm). The image data were reconstructed by software to obtain bronchoscopy results, ie CTVB. Fifty-nine bronchial tracts were observed. Observations were compared with those seen with surgery and bronchofibroscopy (FOB) and the pathology obtained. Results: CTVB showed bronchial lumen wall, intracavitary lesions, bronchial lumen and other forms similar to FOB, and can show the case of distal bronchial obstruction, but the specificity is not strong; CTVB combined with axial CT can better show bronchial lesions The location, scope and relationship with the surrounding tissue. CTVB guide fiberoptic bronchoscopy biopsy, for preoperative lung cancer T staging and determine the surgical program provides important information. Conclusion: CTVB is an excellent complement to many of the tests for bronchogenic carcinoma of the lung.