Batra P, Brown K, Steckel R J, Collins J D, Ovenfors C O, Aberle D
Department of Radiological Sciences, University of California, Los Angeles Medical Center 90024.
J Comput Assist Tomogr. 1988 Jan-Feb;12(1):75-81. doi: 10.1097/00004728-198801000-00014.
We performed direct multisection coronal and sagittal magnetic resonance (MR) images in addition to axial images to determine the value and limitations of coronal and sagittal planes compared with axial planes. Ninety-four MR examinations of the thorax were performed with a 0.3 T permanent magnet system (Fonar) by spin echo technique. The MR axial images were found superior to coronal in demonstrating prevascular adenopathy (one case), pretracheal nodes (nine cases), left paraaortic nodes (three cases), subcarinal nodes (three cases), and small pleural effusions (three cases). The coronal or sagittal planes were better to determine relationship of a mass at the lung apex (five cases) or an abnormality at the lung base (five cases). The anteroposterior displacement or compromise of great vessels and bronchi was best displayed on the axial plane whereas craniocaudal displacement of above structures was best seen on the coronal plane. The axial images were found most informative and we suggest that they be performed routinely. Coronal or sagittal planes may be added in selected cases.
我们除了进行轴位图像外，还进行了直接多层面冠状位和矢状位磁共振（MR）成像，以确定冠状位和矢状位平面与轴位平面相比的价值和局限性。使用0.3T永磁系统（Fonar）通过自旋回波技术对94例胸部进行了MR检查。在显示血管前淋巴结肿大（1例）、气管前淋巴结（9例）、左主动脉旁淋巴结（3例）、隆突下淋巴结（3例）和少量胸腔积液（3例）方面，发现MR轴位图像优于冠状位图像。冠状位或矢状位平面更有助于确定肺尖肿块（5例）或肺底部异常（5例）的关系。大血管和支气管的前后移位或受压情况在轴位平面上显示最佳，而上述结构的头尾向移位在冠状位平面上看得最清楚。发现轴位图像提供的信息最多，我们建议常规进行轴位成像。在特定病例中可加做冠状位或矢状位平面成像。
