PET/MRI分子影像设备

摘要

To compare the principles and system frameworks on PET and MRI systems. The functional characteristics and present adoptive structural models of PET/MRI as molecular imaging equipment is introduced in particular. To compare several update techniques of attenuation correction for PET image with MRI parameters and to expatiate their deficiencies. The advantages on PET/MRI clinical applications and the future development of PET/MRI are introduced briefly.%该文对PET和MRI的成像原理及设备结构进行了比较.着重介绍一体化PET/MRI分子影像设备的功能特点和目前采用的几种结构模式.比较了采用MRI图像信息对PET图像进行衰减校正的现行方法,阐述了它们各自存在的问题.详细阐述了PET/MRI临床应用的优势和其发展前景.