目的：探讨电视纵隔镜检查术在肺癌术前分期、纵隔疾病诊断中的价值。
Objective: To investigate the value of cervical mediastinoscopy in the diagnosis of mediastinal diseases and the staging of lung cancer before operation.
结论通过电视纵隔镜检查可对上腔静脉综合征的病因作出准确诊断，该检查安全可行。
Videomediastinoscopy is a safe and effective procedure for the diagnosis of cause for superior vena cava obstruction syndrome.
目的：探讨电视纵隔镜检查与CT在纵隔疾病的诊断及术前肺癌N分期上的价值并比较两种诊断方法之间的差别。
Objective: To explore the value of VM and CT in the diagnosis of mediastinal disease and N staging of preoperative lung cancer, and discuss the difference between the 2 methods.
目的：探讨电视纵隔镜检查与CT在纵隔疾病的诊断及术前肺癌N分期上的价值并比较两种诊断方法之间的差别。
Objective: To explore the value of VM and CT in the diagnosis of mediastinal disease and N staging of preoperative lung cancer, and discuss the difference between the 2 methods.
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