EFFECT OF BRINE INJECTION ON WATER DYNAMICS PN POSTMORTEM MUSCLE - STUDY OF T-2 AND DIFFUSION-COEFFICIENTS BY MR MICROSCOPY

被引：24

作者：

FOUCAT, L ^{[1
]}

BENDERBOUS, S ^{[1
]}

BIELICKI, G ^{[1
]}

ZANCA, M ^{[1
]}

RENOU, JP ^{[1
]}

机构：

[1] INRA,F-63122 CEYRAT,FRANCE

来源：

MAGNETIC RESONANCE IMAGING | 1995年 / 13卷 / 02期

关键词：

MAGNETIC RESONANCE MICROSCOPY; SPIN-SPIN RELAXATION TIME; DIFFUSION COEFFICIENT; MUSCLE; BRINE;

D O I：

10.1016/0730-725X(94)00094-J

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：

The dynamics of water in postmortem muscle were studied by magnetic resonance microscopy (MRM). Rabbit muscles were arterially injected with 3 and 5 M NaCl brine. T-2 and diffusion mapping were performed during the onset of rigor mortis. A wide spread of T-2 values and widely differing postmortem evolutions were observed for injected muscles, whereas T-2 was spatially homogeneous for intact muscle. Also, highly variable spatial distribution of diffusion coefficients along (D-z) and across (D-x) the muscle fibers was observed and diffusion anisotropy D-z/D-x) was less marked in injected muscles. The results indicate heterogeneity of brine distribution far from the injection site soon after injection. The postmortem evolution of the parameters is discussed in terms of structural changes induced by brine injection. MRM provides insight into how water dynamics respond to different NaCl concentrations inside muscle.

引用

页码：259 / 267

页数：9

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