大鼠后肢肌电阻抗成像的有限元分析
Finite element analysis of electrical impedance myography in the rat hind limb.
作者信息
Ahad Mohammad A, Rutkove Seward B
机构信息
Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215 USA.
出版信息
Annu Int Conf IEEE Eng Med Biol Soc. 2009;2009:630-3. doi: 10.1109/IEMBS.2009.5334069.
Electrical impedance myography (EIM) is a form of muscle assessment based on the surface application of electrical current and measurement of the resulting voltages over a muscle group of interest. In order to better understand the effect of pathological change in muscle, EIM has recently been applied to the rat. In this study, a finite element model of EIM is presented for the rat hind limb which incorporates the detailed anatomy of the leg based on computerized tomographic imaging and conductivity and permittivity values obtained from the rat gastrocnemius muscle. In addition, the angular anisotropy of the biceps femoris muscle has been included. The model successfully predicts the recorded surface impedances measured with EIM.
电阻抗肌电图（EIM）是一种肌肉评估形式，它基于在感兴趣的肌肉群表面施加电流并测量产生的电压。为了更好地理解肌肉病理变化的影响，EIM最近已应用于大鼠。在本研究中，提出了一种大鼠后肢的EIM有限元模型，该模型基于计算机断层扫描成像以及从大鼠腓肠肌获得的电导率和介电常数，纳入了腿部的详细解剖结构。此外，还考虑了股二头肌的角向各向异性。该模型成功预测了用EIM测量的记录表面阻抗。
Zotero 插件