Electrically silent magnetic fields.
Electrically silent magnetic fields.
复制标题
电静音磁场。
DOI：
10.1016/s0006-3495(86)83513-5
复制
发表时间：
1986
影响因子：
3.4
通讯作者：
WikswoJr,JP
中科院分区：
文献类型：
--
作者：
Roth,BJ;WikswoJr,JP
在过去的十年里，关于生物电信号和生物磁信号的相对信息含量一直存在重大争议。在本文中，我们提出了一个新的，理论上的例子，一个电沉默的磁场的基础上，bidomain模型的一个圆柱形的组织股广义包括非对角分量的电导率张量。解释了非对角分量的物理解释，并找到了电势和磁场的解析表达式，这些表达式表明，在电导率张量比以前研究的更复杂的系统中，从电势测量中无法获得的信息可以从磁场测量中获得。
There has been a significant controversy over the past decade regarding the relative information content of bioelectric and biomagnetic signals. In this paper we present a new, theoretical example of an electrically-silent magnetic field, based on a bidomain model of a cylindrical strand of tissue generalized to include off-diagonal components in the conductivity tensors. The physical interpretation of the off-diagonal components is explained, and analytic expressions for the electrical potential and the magnetic field are found. These expressions show that information not obtainable from electrical potential measurements can be obtained from measurements of the magnetic field in systems with conductivity tensors more complicated than those previously examined.