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.
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收藏
页码：17 / 23
页数：7
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