Murata K, Takahashi M, Mori M, Shimoyama K, Mishina A, Fujino S, Itoh H, Morita R
Department of Radiology, Shiga University of Medical Science, Japan.
Radiology. 1994 Apr;191(1):251-5. doi: 10.1148/radiology.191.1.8134583.
To assess the utility of multisection expiratory dynamic (ED) computed tomography (CT) in evaluation of tumor invasion in the chest wall or mediastinum.
Fifteen patients with lung cancer underwent multisection ED CT. At each section level, 10 images were obtained at an interval of 1 second during a single expiratory maneuver. These images were evaluated in cine mode to assess tumoral movement along the chest wall or mediastinum.
ED CT showed that the tumors in five patients were fixed to the chest wall (n = 2) or mediastinum (n = 3); free movement of tumor along the peripheral (n = 7) or mediastinal (n = 3) pleura was proved in the 10 other patients. At pathologic examination, the ED CT findings were proved correct in all patients. In six patients, ED CT provided additional information about tumor invasion that could not be obtained with conventional criteria.
Multisection ED CT may improve the accuracy of CT in prediction of chest wall or mediastinal invasion of lung cancer.
评估多层呼气动态（ED）计算机断层扫描（CT）在评估胸壁或纵隔肿瘤侵犯中的应用价值。
15例肺癌患者接受了多层ED CT检查。在每个层面，于单次呼气动作期间每隔1秒获取10幅图像。以电影模式评估这些图像，以评估肿瘤沿胸壁或纵隔的移动情况。
ED CT显示，5例患者的肿瘤与胸壁（n = 2）或纵隔（n = 3）固定；其余10例患者的肿瘤沿外周胸膜（n = 7）或纵隔胸膜（n = 3）可自由移动。病理检查证实，所有患者的ED CT表现均正确。6例患者中，ED CT提供了常规标准无法获得的关于肿瘤侵犯的额外信息。
多层ED CT可能提高CT预测肺癌胸壁或纵隔侵犯的准确性。
