Schiavon F, Nardini S
Servizio di Radiologia, Ospedale Civile, Montagnana, Padova.
Radiol Med. 1989 Nov;78(5):473-7.
Twenty cases of mediastinal pathologies were examined with conventional radiology and Computerized Tomography (CT). They all (4 lesions in the superior and 16 in the postero-inferior mediastinum) presented with no significant changes in mediastinal borders. Conventional X-ray pictures were carefully examined for changes in mediastinal shape, and aerial tracheograms for "tracheal dimness"; CT scans were used as anatomical reference material. Mediastinal lines were detectable and evaluable in less cases than tracheal dimness was. The latter proved an useful sign for the evaluation not only of the pathologic condition itself, but also of the therapeutical reduction obtained in previously-diagnosed lesions. The routine study of tracheal dimness on conventional X-ray pictures appears to be an useful addition to the well-known signs of mediastinal pathologic conditions, especially when filters and high voltage are but seldom used.
对20例纵隔病变患者进行了传统放射学检查和计算机断层扫描（CT）。所有病例（上纵隔4处病变，后下纵隔16处病变）纵隔边界均无明显变化。仔细检查传统X线片以观察纵隔形态的变化，检查气管造影片以观察“气管模糊征”；CT扫描用作解剖参考资料。与气管模糊征相比，能检测和评估纵隔线的病例较少。事实证明，气管模糊征不仅对评估病理状况本身有用，而且对评估先前诊断病变的治疗缓解情况也有用。在传统X线片上常规观察气管模糊征似乎是对纵隔病理状况已知征象的有益补充，尤其是在很少使用滤线器和高电压的情况下。
