ECHO-PLANAR IMAGING WITH ASYMMETRIC GRADIENT MODULATION AND INNER-VOLUME EXCITATION

被引：71

作者：

FEINBERG, DA ^{[1
]}

TURNER, R ^{[1
]}

JAKAB, PD ^{[1
]}

VONKIENLIN, M ^{[1
]}

机构：

[1] NIH,BIOMED ENGN & INSTRUMENTAT BRANCH,BETHESDA,MD 20892

来源：

MAGNETIC RESONANCE IN MEDICINE | 1990年 / 13卷 / 01期

关键词：

D O I：

10.1002/mrm.1910130116

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

Single‐shot echo‐planar imaging is notoriously vulnerable to image artifacts, arising from the necessity of alternate echo time reversal during image reconstruction and from static field inhomogeneity. A technique for overcoming these problems, which further permits imaging on systems with relatively poor gradient waveforms, when data are collected always with the same gradient polarity, is presented. Subsectional and 3D volume imaging are presented as well as a novel phase‐correction method for Hermitian symmetry in “half‐Fourier” echo‐planar imaging. Copyright © 1990 Wiley‐Liss, Inc., A Wiley Company

引用

页码：162 / 169

页数：8