Two-dimensional technique to calculate the EM power deposition pattern in the human body.
Two-dimensional technique to calculate the EM power deposition pattern in the human body.
复制标题
用于计算人体中电磁功率沉积模式的二维技术。
DOI：
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复制
发表时间：
1982
期刊：
影响因子：
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通讯作者：
J. Kao
中科院分区：
文献类型：
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作者：
M. Iskander;P. Turner;J. Dubow;J. Kao
描述了一种计算人体二维横截面模型中电磁(EM)功率沉积的数值方法。该方法通过计算机轴向层析扫描获得特定区域横截面的X射线图像，然后用矩量法求解电磁边值问题。因此，该公式不仅考虑了不同组织类型的空间分布，而且还考虑了典型电磁源的辐射特性。数值结果表明，该方法具有较高的计算精度。特别强调了利用BSD医疗公司最近开发的用于热疗的环形相控阵系统获得的电磁功率沉积图案的特征和分析。
A numerical procedure to calculate the electromagnetic (EM) power deposition in two-dimensional models of cross sections in the human body is described. The procedure involves obtaining X-ray images of cross sections of specific areas with computer axial tomographic scans and then solving the EM boundary value problem by using the method of moments. The formulation thus takes into account not only the spatial distribution of the different tissue types, but also the radiation characteristics of the typical EM source. Numerical results are given to illustrate the accuracy of the developed procedure. Special emphasis is placed on characterizing and analyzing the EM power deposition patterns obtained using the annular phased array system recently developed by BSD Medical Corporation for hyperthermia treatments.