Meduri A, Natale L, Lauro L, Ruggiero M, Cavallo T, Marano P
Istituto di Radiologia, Università Cattolica del S. Cuore, Policlinico A. Gemelli, Roma, Italy.
Rays. 1999 Jan-Mar;24(1):4-18.
Recent advances achieved in Magnetic Resonance Imaging equipment and procedures allow a thorough study of the heart, yielding anatomic, functional and angiographic information. Spin-echo sequences are specific for heart morphology while gradient-echo sequences are fundamental to the functional study. Fast sequences reduce the examination times with the possibility of single breath-hold images. Coronary arteries can be directly visualized and cardiac perfusion can be assessed. Velocity encoded images allow flow quantification and with myocardial tagging, cardiac mechanics is accurately defined.
磁共振成像设备和程序方面的最新进展使得对心脏进行全面研究成为可能，能够提供解剖学、功能和血管造影信息。自旋回波序列对心脏形态具有特异性，而梯度回波序列是功能研究的基础。快速序列减少了检查时间，能够获得单次屏气图像。冠状动脉可直接可视化，心脏灌注也可得到评估。速度编码图像可实现血流定量分析，结合心肌标记技术，能精确界定心脏力学。
