A Noninvasive Method for Dielectric Property Measurement of Biological Tissues

Jianqing WANG  Tasuku TAKAGI  

IEICE TRANSACTIONS on Communications   Vol.E77-B   No.6   pp.738-742
Publication Date: 1994/06/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Biological Effects of Electromagnetic Fields)
noninvasive measurement,  complex permittivity,  biological tissue,  inverse scattering,  

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A noninvasive method for measuring complex permittivity of biological tissues is proposed. The noninvasive method is based on an inverse scattering technique which employs an iterative procedure. The iterative procedure consists of solving an electric field integral equation using the method of moments and minimizing the square difference between calculated and measured scattered fields. Implementation of the noninvasive method requires the knowledge of the target shape, the incident and measured scattered fields. Based on the noninvasive method, a measuring system of complex permittivity is developed and its reliability is verified.