磁敏感加权成像原理概述

被引:53
作者
王丽娟
刘玉波
王光彬
机构
[1] 山东省医学影像学研究所
关键词
磁敏感加权成像; 原理; 后处理;
D O I
暂无
中图分类号
R445.2 [核磁共振成像];
学科分类号
100207 ;
摘要
磁敏感加权成像(SWI)以T2*加权梯度回波序列作为序列基础,根据不同组织间的磁敏感性差异提供图像对比增强,可同时获得磁距图像(magnitude image)和相位图像(phase image)。SWI在显示脑内小静脉及出血方面敏感性优于常规梯度回波序列,具有较高的临床应用价值。本文重点对SWI成像基本原理及后处理技术进行概述。
引用
收藏
页码:227 / 230
页数:4
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