Dimbylow P J
National Radiological Protection Board, Didcot, Oxon, UK.
Phys Med Biol. 1998 Feb;43(2):221-30. doi: 10.1088/0031-9155/43/2/001.
This paper presents calculations of current density in a fine-resolution (2 mm) anatomically realistic voxel model of the human body for uniform magnetic fields incident from the front, side and top of the body for frequencies from 50 Hz to 10 MHz. The voxel phantom, NORMAN, has a height of 1.76 m and a mass of 73 kg. There are 8.3 million voxels in the body differentiated into 37 tissue types. Both the impedance method and the scalar potential finite difference method were used to provide mutual corroboration. Results are presented for the current density averaged over 1 cm2 in muscle, heart, brain and retina.
本文给出了在一个高分辨率(2毫米)的人体解剖逼真体素模型中,针对从人体前部、侧面和顶部入射的均匀磁场,在50赫兹至10兆赫兹频率范围内的电流密度计算结果。该体素模型NORMAN,高1.76米,质量73千克。人体中有830万个体素,分为37种组织类型。同时使用了阻抗法和标量电位有限差分法以相互验证。给出了肌肉、心脏、大脑和视网膜中1平方厘米上平均电流密度的结果。