PROFILE AMPLITUDE-MODULATION IN STRAY-FIELD MAGNETIC-RESONANCE-IMAGING

被引：52
|
作者：
BENSON, TB
MCDONALD, PJ
机构：
[1] Department of Physics, University of Surrey, Surrey GU2 5XH, Guildford
来源：
JOURNAL OF MAGNETIC RESONANCE SERIES A | 1995年 / 112卷 / 01期
关键词：
D O I：
10.1006/jmra.1995.1004
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
It is shown that the amplitudes of successive echoes in a stray-field magnetic resonance imaging (STRAFI) experiment are strongly modulated by the intense magnetic-field gradient used and by sample movement during the experiment. In this paper the modulation is analyzed so that quantitative interpretation of STRAFI images reconstructed from multiple-echo data can be made. Spin-spin relaxation is included. Theoretical predictions of relative echo intensities are compared with data obtained from an experiment to visualize acetone penetration into PVC. (C) 1995 Academic Press, Inc.
引用
收藏
页码：17 / 23
页数：7
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