ACQUISITION OF SPIN-ECHO AND STIMULATED ECHO BY A SINGLE SEQUENCE - APPLICATION TO MRI OF DIFFUSION

被引：11

作者：

FRANCONI, F

SONIER, CB

SEGUIN, F

LEPAPE, A

AKOKA, S

机构：

[1] Laboratoire de Biophysique Cellulaire, RMN, Faculté de Médecine, 37 032 Tours cedex, 2 bis, Bd Tonnellé

[2] Service de Neuroradiologie, CHRU, 37 044 Tours

来源：

MAGNETIC RESONANCE IMAGING | 1994年 / 12卷 / 04期

关键词：

MRI; DIFFUSION; STIMULATED ECHO;

D O I：

10.1016/0730-725X(94)92455-4

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 new method is described to measure the restricted diffusion coefficient with magnetic resonance imaging. The two images necessary to calculate the diffusion image are obtained with a simultaneous acquisition of a spin-echo and a stimulated echo, and so, in half the time needed by usual spin-echo or stimulated echo method. A different diffusion contrast is created on each echo. A map of an estimate of the diffusion coefficient and an estimation of T, value are obtained with only one experiment. The accuracy of the method has been evaluated on phantom and results are in agreement with values found in previous papers and with measurements performed with a usual spin-echo method. Furthermore, in vivo measurements have shown that this method can be used without elettrocardiogram triggering.

引用

页码：605 / 611

页数：7

共 13 条

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