Magnetic Particle Imaging (MPI) is a new medical imaging tool, which was born at the beginning of the 21st century. Compared with traditional imaging techniques, the preliminary research indicates that MPI shows higher sensitivity, resolution and imaging speed. This article presents the principle of MPI, its recent development from three different perspectives is introduced.%磁颗粒成像是从二十一世纪开端的一种新的医学影像方法,前期研究表明其比传统成像技术具有更高的灵敏度、分辨率和成像速度.介绍了磁颗粒成像的原理,并从三个方面展开介绍了该领域的最新动态.
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