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目的:探讨薄层CT靶扫描显示支气管在肺癌诊断中的作用。材料与方法:分析了137例经病理证实的支气管、肺部疾患(85例为肺癌)的正、侧位胸片和常规CT扫描资料,其中115例用加做薄层CT靶扫描的方式显示病变支气管,结果与支气管内窥镜和活检病理结果相对照。结果:薄层CT靶扫描对病变支气管的显示良好率为87％,显示不良为13％,而常规扫描则显示良好率为34％,不良者32％,还有34％未显示。结论:薄层CT靶扫描前必须仔细阅读正,侧位胸片和常规扫描图像,明确靶支气管。薄层CT靶扫描对段支气管及其邻近病变的显示可提高段支气管的中央型肺癌的诊断率,了解周围型肺癌是否累及段以上支气管,从而为临床提供更多的信息,但其定性诊断尚有限度。
Objective: To explore the role of thin-layer CT scan in the diagnosis of lung cancer. Materials and Methods: 137 cases of pathologically confirmed bronchial and pulmonary diseases (85 cases of lung cancer) were examined with positive and lateral chest radiographs and routine CT scans. Among them, 115 cases were shown as thin-layer CT scans. Lesions of the bronchus were compared with bronchial endoscopy and biopsy results. RESULTS: The thin-slice CT scan showed a good rate of 87% in the lesioned bronchus and 13% in the poorly displayed, whereas the conventional scan showed a good rate of 34%, and 32% of the unsatisfactory patients, while 34% did not. Conclusion: Before scanning with thin-layer CT target, we must carefully read positive, lateral chest radiographs and conventional scans to identify the target bronchus. Thin-section CT scan of the segmental bronchus and its adjacent lesions can improve the diagnosis rate of central lung cancer in the segmental bronchus and understand whether the peripheral lung cancer affects more than the segmental bronchus, thus providing more information for the clinic, but the qualitative diagnosis is still limited.