Webb W R, Jensen B G, Gamsu G, Sollitto R, Moore E H
Radiology. 1984 Dec;153(3):729-35. doi: 10.1148/radiology.153.3.6494468.
In order to determine the value of coronal magnetic resonance (MR) in diagnosing thoracic abnormalities, the multisection coronal spin echo MR images were reviewed of 10 normal subjects and 20 patients with thoracic abnormalities. In the abnormal patients, coronal images were compared with transaxial MR images obtained with TR values of 0.5 and 2.0 sec. In general, coronal imaging was of value in several situations. It allowed structures oriented in the coronal plane to be imaged along their longitudinal axes, provided an additional perspective and increased the confidence of diagnosis, and helped clarify anatomic relationships difficult or impossible to resolve on transaxial images because of volume averaging. Specifically, coronal images were sometimes superior to transaxial images in evaluating the aorticopulmonary window and masses at the lung apex or base. Transaxial images were often superior in evaluating the pretracheal space, subcarinal space, and hili. Within the pulmonary hili, lateral hilar masses were better defined on coronal images than were anterior or posterior hilar masses. Coronal images obtained with a TR of 1.0 sec (10 sections) allow evaluation of most node-bearing mediastinal compartments and provide adequate mass/fat contrast.
为了确定冠状面磁共振成像（MR）在诊断胸部异常中的价值，回顾了10名正常受试者和20例胸部异常患者的多层面冠状面自旋回波MR图像。在异常患者中，将冠状面图像与采用0.5秒和2.0秒重复时间（TR）获得的横断面MR图像进行比较。总体而言，冠状面成像在几种情况下具有价值。它能使位于冠状面的结构沿其纵轴成像，提供了额外的观察视角并增加了诊断的信心，还有助于阐明因容积平均效应而在横断面图像上难以或无法分辨的解剖关系。具体来说，在评估主肺动脉窗以及肺尖或肺底部的肿块时，冠状面图像有时优于横断面图像。在评估气管前间隙、隆突下间隙和肺门时，横断面图像通常更具优势。在肺门内，冠状面图像上外侧肺门肿块比前侧或后侧肺门肿块显示得更清晰。采用1.0秒重复时间（TR）（10个层面）获得的冠状面图像能够评估大多数含有淋巴结的纵隔腔室，并提供足够的肿块/脂肪对比度。
