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目的：探索ＥＢＣＴ 仿真支气管镜的成像方法和成像效果，并初步探讨其应用价值。材料和方法：５０ 例正常人群和３０ 例伴气管、支气管病变者。所有研究对象均接受ＥＢＣＴ 薄层扫描，其横断面图像转入ＩＮＳＩＧＨＴ 工作站进行三维重建。其后选用ＳＩＭＵＬＡＴＥＥＮＤＯＳＣＯＰＹ 程序进行仿真支气管镜。结果：运用ＥＢＣＴ 仿真支气管镜：５０例正常人群清晰地显示了气管、支气管内表面的正常形态与表现， 显示支气管腔可达段一级水平；１８ 例中央型肺癌患者显示腔内肿块的形态及内表面或支气管腔狭窄、阻塞，１２ 例气管、支气管良性狭窄患者分别显示病变的范围、形态及内腔表面的异常表现。３０ 例病例均可以显示病变部位以远的支气管管腔情况。结论：ＥＢＣＴ 仿真支气管镜可以清楚地显示气管、支气管内腔的正常或异常表现；可用于部分气管、支气管良、恶性病变的诊断。ＥＢＣＴ 仿真支气管镜提高了ＥＢＣＴ 用于气管、支气管病变的诊断能力，是对纤维支气管镜的补充。
Objective: To explore the imaging method and imaging effect of EBCT simulation bronchoscope and to explore its application value. Materials and Methods: 50 normal subjects and 30 patients with bronchial and bronchial lesions. All subjects underwent EBCT thin-layer scanning and their cross-sectional images were transferred to an INSIGHT workstation for 3D reconstruction. Later use SIMULATEENDOSCOPY program simulation bronchoscopy. Results: EBCT simulation of bronchoscopy: 50 cases of normal population clearly shows the trachea, bronchial surface of the normal morphology and performance, bronchial lumen up to the first level; up to 18 cases of central lung cancer patients showed the shape of intraluminal tumor and The internal surface or bronchial stenosis, obstruction, 12 cases of tracheal and bronchial benign stenosis showed the scope of the lesion, morphology and abnormalities of the lumen surface. All 30 cases can show the bronchial lumen far away from the lesion. Conclusion: EBCT simulation bronchoscopy can clearly show the trachea, bronchus lumen of the normal or abnormal performance; can be used for some trachea, bronchial benign and malignant lesions. EBCT simulation bronchoscopy improves the diagnostic capabilities of EBCT for tracheal and bronchial lesions and complements fiberoptic bronchoscopy.