磁共振相位成像原理及其影像技术实现

Principles and Imaging Technologies of Magnetic Resonance Phase Imaging

磁共振相位图利用不同组织间的磁敏感值差异,可增强白质和灰质、脂肪和水等组织间的对比度,且在体内铁的量化和血管可视化中具有良好的效果。该综述简述相位成像因素和成像方法,并介绍磁敏感加权成像和定量磁敏感成像这两种磁共振相位图应用技术。

Magnetic resonance phase images are able to enhance contrast between gray and white matter and between water and fat by using differences of susceptibility between tissues. Phase images are suitable for the identification of iron and for visualizing veins. In this paper, two basic phase imaging technologies, susceptibility weighted imaging and quantitative susceptibility mapping, were reviewed.