A numerical study concerning brain stroke detection by microwave imaging systems

被引：30
|
作者：
Bisio, Igor [1 ]
Fedeli, Alessandro [1 ]
Lavagetto, Fabio [1 ]
Pastorino, Matteo [1 ]
Randazzo, Andrea [1 ]
Sciarrone, Andrea [1 ]
Tavanti, Emanuele [1 ]
机构：
[1] Univ Genoa, Dept Elect Elect Telecommun Engn & Naval Architec, Via Opera Pia 11A, I-16145 Genoa, Italy
来源：
MULTIMEDIA TOOLS AND APPLICATIONS | 2018年 / 77卷 / 08期
关键词：
Microwave imaging; Brain stroke detection; Inverse problems; Imaging techniques; INEXACT-NEWTON METHOD; DIELECTRIC-PROPERTIES; RADAR; SCATTERING; TISSUES; MODEL;
D O I：
10.1007/s11042-017-4867-7
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, a numerical study devoted to evaluate the application of a microwave imaging method for brain stroke detection is described. First of all, suitable operating conditions for the imaging system are defined by solving the forward electromagnetic scattering problem with respect to simplified configurations and analyzing the interactions between an illuminating electromagnetic wave at microwave frequencies and the biological tissues inside the head. Then, preliminary inversion results are obtained by applying an imaging procedure based on an iterative Gauss-Newton scheme to a realistic model of the human head. The proposed imaging algorithm is able to deal with the nonlinear and ill-posed problem associated to the integral equations describing the inverse scattering problem. The aim of the inversion procedure is related to the determination of the presence of a hemorrhagic brain stroke by retrieving the distributions of the dielectric parameters of the human tissues inside a slice of the head model.
引用
收藏
页码：9341 / 9363
页数：23
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