A CHEMICAL-SHIFT SELECTIVE INVERSION RECOVERY SEQUENCE FOR FAT-SUPPRESSED MRI - THEORY AND EXPERIMENTAL VALIDATION

被引：84

作者：

KALDOUDI, E

WILLIAMS, SCR

BARKER, GJ

TOFTS, PS

机构：

[1] University College London, London

[2] Queen Mary and Westfield College, London

[3] Institute of Neurology, London

来源：

MAGNETIC RESONANCE IMAGING | 1993年 / 11卷 / 03期

关键词：

FAT SUPPRESSION; SELECTIVE INVERSION RECOVERY; SHORT TIME INVERSION RECOVERY (STIR); SELECTIVE PRESATURATION;

D O I：

10.1016/0730-725X(93)90067-N

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：

Fat-suppression techniques are used extensively in routine proton nuclear magnetic resonance imaging to produce images free from chemical shift artifacts and dynamic range problems. A hybrid fat-suppression sequence is studied which combines the principle of short time inversion recovery with chemical shift selective imaging. The aim of this study is to provide a theoretical understanding of the role of the sequence parameters, as well as to compare this hybrid sequence with its most closely related conventional fat-suppression techniques, namely selective presaturation and short time inversion recovery (STIR) imaging. The hybrid technique is shown to be robust in normal use, and more tolerant than the conventional methods to mis-settings of parameters such as inversion time, as well as tip angle and frequency bandwidth of the fat selective pulse.

引用

页码：341 / 355

页数：15

共 19 条

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