Multishot diffusion-weighted FSE using PROPELLER MRI

被引：314
|
作者：
Pipe, JG
Farthing, VG
Forbes, KP
机构：
[1] Barrow Neurol Inst, MRI Dept, Phoenix, AZ 85013 USA
[2] Barrow Neurol Inst, Div Neuroradiol, Phoenix, AZ 85013 USA
来源：
MAGNETIC RESONANCE IN MEDICINE | 2002年 / 47卷 / 01期
关键词：
diffusion; stroke; fast spin-echo; tensor;
D O I：
10.1002/mrm.10014
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：
A method for obtaining diffusion-weighted images that are free from the artifacts associated with echo-planar acquisitions, such as signal pile-up and geometric warping, is introduced. It uses an ungated, multishot fast spin-echo (FSE) acquisition that is self-navigated, The phase of the refocusing pulses is alternated to minimize non-Carr-Purcell-Meiboom-Gill (CPMG) artifacts. Several reconstruction methods are combined to make this method robust against motion artifacts. Examples are shown of clinical diffusion-weighted imaging and high-resolution diffusion tensor imaging. Magn Reson Med 47:42-52, 2002. (C) 2002 Wiley-Liss, Inc.
引用
收藏
页码：42 / 52
页数：11
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