核磁共振扫描成像技术是 70年代末随计算机技术、电子技术和超导技术的发展而出现的一项新颖医学诊断技术 ,简称 MRI,又称核磁共振 CT。它与 X射线断层的扫描 ( X— CT)相比 ,具有独特不可替代的明显优点。目前核磁共振CT早已实施了商业化生产及越来越广泛应用于医学临床。据美 MRI scan imaging technology is a novel medical diagnostic technology that appears with the development of computer technology, electronic technology and superconducting technology in the late 1970s, referred to as MRI, also known as nuclear magnetic resonance CT. It has distinct and irreplaceable advantages over X-ray tomography (X-CT). At present, CT has long been implemented in commercial production and more and more widely used in medical clinical. According to the United States