RELATIONSHIP BETWEEN MRI RELAXATION-TIME AND MUSCLE-FIBER COMPOSITION

被引：34

作者：

HOUMARD, JA ^{[1
]}

SMITH, R ^{[1
]}

JENDRASIAK, GL ^{[1
]}

机构：

[1] E CAROLINA UNIV,DEPT RADIAT ONCOL,GREENVILLE,NC 27858

来源：

JOURNAL OF APPLIED PHYSIOLOGY | 1995年 / 78卷 / 03期

关键词：

MAGNETIC RESONANCE IMAGING; SKELETAL MUSCLE;

D O I：

10.1152/jappl.1995.78.3.807

中图分类号：

Q4 [生理学];

学科分类号：

071003 ;

摘要：

The relationship between nuclear magnetic resonance relaxation time obtained with magnetic resonance imaging (MRI) and muscle fiber composition of the lateral gastrocnemius was examined in 13 men. There was a positive correlation (r = 0.80, P less than or equal to 0.001) between longitudinal relaxation time and the relative percentage of slow-twitch muscle fibers (type I). There was no relationship between transverse relaxation time and type I percentage (r = 0.17, P = 0.57). These results suggest that MRI longitudinal relaxation time can be used for the noninvasive estimation of muscle fiber composition in humans.

引用

页码：807 / 809

页数：3

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