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目的 探讨ＣＴ仿真内窥镜临床应用价值。方法 共完成各种体腔（气道、消化道、鼻、咽、喉及血管腔）ＣＴＶＥ６０例，所有病例先行螺旋ＣＴ扫描，将源图像传至工作站，经特殊软件处理，模拟纤维内镜检查。部分病例有纤维内窥镜对照。结果 ３０例气道ＣＴＶＥ均清晰显示至段及部分亚段支气管，其中２０例肿瘤性病变显示了狭窄或阻断面处理情况，但对纤支镜下肿瘤周围粘膜侵犯及肿块表面细节均显示不良。２０例消化道ＣＴＶＥ显示中晚期胃癌、结肠癌良好，但对１例小息肉及２例胃溃疡均记诊。鼻咽及喉部７例中１例鼻咽癌显示咽隐窝肿块，２例喉癌示声门不对称，３例血管ＣＴＶＥ显示２例主动脉夹层瘤及内膜瓣，１例显示前交通动脉瘤颈、体情况。结论 ＣＴＶＥ显示病变部位明确，观察病变组织全面，可部分替代纤维内窥镜检查。但其肿块表面“菜花”状改变及其粘膜下浸润显示均不良，容易漏诊胃肠道良性溃疡及小息肉，说明ＣＴＶＥ分辨率仍不够高。鼻、咽、喉ＣＴＶＥ显示解剖细节十分逼真，血管ＣＴＶＥ在诊断主动脉夹层内膜瓣及破口，动脉瘤颈、体腔的显示方面独辟蹊径，做好消化道ＣＴＶＥ前的准备十分重要，以免造成误诊和漏诊。
Objective To investigate the clinical value of CT virtual endoscopy. Methods A total of 60 cases of CTVE of various body cavities (airway, digestive tract, nose, pharynx, larynx and vascular cavity) were completed. All the cases were scanned by spiral CT and the source images were transmitted to the workstation and processed by special software to simulate fiber endoscopy. Some cases have fibroscope control. Results Thirty airway CTVE were clearly shown to the segment and some sub-segment bronchi, of which 20 cases of tumor lesions showed stenosis or block surface treatment, but the mucosal lesions around the bronchofibroscopy and tumor surface showed poor detail . 20 cases of gastrointestinal CTVE showed advanced gastric cancer, colon cancer is good, but a case of small polyps and 2 cases of gastric ulcer were diagnosed. Nasopharyngeal and throat in 7 cases of nasopharyngeal carcinoma showed pharyngeal crypt mass, 2 cases of laryngeal carcinoma showed glottis asymmetry, 3 cases of vascular CTVE showed 2 cases of aortic dissection and intimal flap, 1 case showed the former traffic Aneurysms neck, body conditions. Conclusion CTVE showed that the lesion was clear, the lesions were observed comprehensively, and could partially replace the endoscopic examination. But the lump surface “cauliflower-like” change and its submucosal infiltration showed poor, easy to misdiagnose gastrointestinal benign ulcer and small polyps, indicating CTVE resolution is still not high enough. Nasopharyngeal, pharyngeal and throat CTVE shows the anatomic detail very realistic. Vascular CTVE is very important in the diagnosis of the aortic dissection intima-flap, aneurysm neck and body cavity display. It is very important to prepare the digestive tract before CTVE to avoid misdiagnosis And missed diagnosis.