Statistical mapping of the effect of knee extension on thigh muscle viscoelastic properties using magnetic resonance elastography
Statistical mapping of the effect of knee extension on thigh muscle viscoelastic properties using magnetic resonance elastography
复制标题
DOI：
10.1088/0967-3334/34/12/1675
复制
发表时间：
2013-12-01
影响因子：
3.2
通讯作者：
Roberts, Neil
中科院分区：
文献类型：
--
作者：
Barnhill, Eric;Kennedy, Paul;Roberts, Neil
骨骼肌的粘弹性能反映肌肉的微观结构和神经肌肉的激活状态。弹性成像方法，包括磁共振弹性成像，已被用来表征肌肉的粘弹性在感兴趣的区域（ROI）的测量。本研究扩展了这种方法，以创建阈值的像素像素地图的骨骼肌粘弹性在休息和膝关节伸展在11个科目。对单个股四头肌和股四头肌区域整体进行ROI测量，并以正假发现率q对粘弹性参数图像素进行统计学检验
Skeletal muscle viscoelastic properties reflect muscle microstructure and neuromuscular activation. Elastographic methods, including magnetic resonance elastography, have been used to characterize muscle viscoelastic properties in terms of region of interest (ROI) measurements. The present study extended this approach to create thresholded pixel-by-pixel maps of viscoelastic properties of skeletal muscle during rest and knee extension in eleven subjects. ROI measurements were taken for individual quadricep muscles and the quadriceps region as a whole, and the viscoelastic parameter map pixels were statistically tested at positive false discovery rate q