基于相关跟踪的声肌图(SMG)初步研究  

Preliminary research of sonomyography(SMG) based on correlation tracking

作　　者：施俊[1] 郑永平[2] 严壮志[1] 周康源[3] 

机构地区：[1]上海大学通信与信息工程学院生物医学工程研究所,上海200072 [2]香港理工大学医疗科技及资讯学系 [3]中国科学技术大学电子工程与信息科学系,合肥230027

出　　处：《声学技术》2007年第1期40-45,共6页Technical Acoustics

基　　金：上海市重点学科建设项目资助(T0102);上海市教委发展基金(05AZ49);上海高校选拔培养优秀青年教师科研专项基金;香港研究资助局(PolyU5245/03E);香港理工大学(G-U064)

摘　　要：骨骼肌的力学特性总是和它的结构形态相关的。超声可以准确的反映骨骼肌运动过程中的空间形态变化,是研究骨骼肌运动形态特性非常有效的工具。文章介绍了一套可以无干扰、同步、连续采集超声信号、力或力矩、角度、肌电信号等骨骼肌相关参量的超声运动与弹性测量系统,并基于此系统,利用相关跟踪算法来获取前臂桡侧腕伸肌在手腕屈伸时的运动轨迹。实验结果表明,相关跟踪算法简单、直接,而又不失准确性,而由相关跟踪得到的前臂桡侧腕伸肌的肌肉厚度和手腕屈伸角度之间存在着非线性的关系,同时骨骼肌的多参量结合研究也是可行的。The mechanical properties of skeletal muscles are changes. Ultrasound is a useful tool to study skeletal muscle sional architectural changes of muscle. In this paper, ultrasound always related to their architectural that can be used to monitor dimenmeasurement of motion and elasticity system is introduced, which can synchronously and continuously acquire different kinds of data including ultrasound signals, EMG signals, angle, force, etc., without disturbance. Based on this system, the locomotory track of muscle thickness of extensor carpi radialis is obtained with a correlation tracking algorithm during wrist flexion-extension. The results show that the correlation- tracking algorithm is simple, fast, and accurate. They also prove that relation between wrist angle and muscle thickness of extensor carpi radialis is nonlinear. The study of skeletal muscle with multi-parameters is feasible.

关 键 词：超声 声肌图 相关跟踪 

分 类 号：TB559[理学—物理]