Department of Physics, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece.
Phys Med Biol. 2009 Dec 7;54(23):N541-7. doi: 10.1088/0031-9155/54/23/N02. Epub 2009 Nov 11.
Studies which take into account the anisotropy of tissue dielectric properties for the numerical assessment of induced currents from low-frequency magnetic fields are scarce. In the present study, we compare the induced currents in two anatomical models, using the impedance method. In the first model, we assume that all tissues have isotropic conductivity, whereas in the second one, we assume anisotropic conductivity for the skeletal muscle. Results show that tissue anisotropy should be taken into account when investigating the exposure to low-frequency magnetic fields, because it leads to higher induced current values.
针对低频磁场感应电流的数值评估而考虑组织介电各向异性特性的研究较少。在本研究中，我们使用阻抗法比较了两个解剖模型中的感应电流。在第一个模型中，我们假设所有组织的电导率都是各向同性的，而在第二个模型中，我们假设骨骼肌的电导率是各向异性的。结果表明，在研究低频磁场暴露时应考虑组织各向异性，因为它会导致更高的感应电流值。
