Choe Y H, Kim Y M, Han B K, Park K G, Lee H J
Department of Radiology, Samsung Medical Center, Seoul, Korea.
Radiographics. 1997 Mar-Apr;17(2):403-22. doi: 10.1148/radiographics.17.2.9084081.
The ability of magnetic resonance (MR) imaging to depict cardiovascular structures is especially useful in patients with congenital heart disease (CHD). While MR imaging techniques that focus on cardiac function or blood flow have not been used frequently in the evaluation of CHD, MR imaging has been useful in morphologic diagnosis of CHD. Spin-echo MR imaging can depict relevant morphologic features of most types of CHD. MR imaging provides important diagnostic information in evaluation of right ventricular outflow tract obstruction (eg, pulmonary atresia), postoperative status, pulmonary venous anomalies, and complex ventricular anomalies. MR imaging can replace angiography in some situations, including evaluation of simple defects, right ventricular outflow tract obstruction, and postoperative status. MR imaging is the modality of choice in evaluation of aortic coarctation, interrupted aortic arch, and hemitruncus. MR images in three orthogonal planes are useful in analyzing the morphology and arrangement of cardiac segments in univentricular heart, criss-cross heart, and abnormal visceroatrial situs.
磁共振（MR）成像描绘心血管结构的能力在先天性心脏病（CHD）患者中尤为有用。虽然专注于心脏功能或血流的MR成像技术在CHD评估中尚未频繁使用，但MR成像在CHD的形态学诊断中很有用。自旋回波MR成像可以描绘大多数类型CHD的相关形态学特征。MR成像在评估右心室流出道梗阻（如肺动脉闭锁）、术后状态、肺静脉异常和复杂心室异常时提供重要的诊断信息。在某些情况下，MR成像可以替代血管造影，包括评估简单缺损、右心室流出道梗阻和术后状态。MR成像是评估主动脉缩窄、主动脉弓中断和半心畸形的首选方式。三个正交平面的MR图像有助于分析单心室心脏、交叉心脏和内脏心房位置异常时心脏节段的形态和排列。
