摘要PET-CT实现了功能和解剖结构显像的融合,在临床和科研中均获得了巨大成功.MRI是另一种解剖显像方法,与CT相比它具有更好的软组织对比度和空间分辨率,如果能实现PET和MRI的同机融合,将可能对分子影像学产生更深远的影响.主要综述目前PET-MRI研制存在的问题和进展情况,并展望其潜在的临床和科研价值.

abstractsPET-CT is a successful combination of functional and morphologic information,and it has already been shown to have great value both in clinics and in scientific research.MRI is another kind of morphologic imaging method,in contrast to CT,MRI can yield images with higher soft-tissue contrast and better spatial resolution.The combination of PET and MRI for simultaneous data acquisition should have far-reaching consequences for molecular imaging.This review will talk about the problems met in the development of PET-MRI and describe the progress to date and look forward to its potential application.