重建Cole-Cole模型参数的时域微波乳腺筛查技术

doi:10.19596/j.cnki.1001-246x.7638

计算物理 ›› 2018, Vol. 35 ›› Issue (3): 313-320.DOI: 10.19596/j.cnki.1001-246x.7638

重建Cole-Cole模型参数的时域微波乳腺筛查技术

刘广东¹, 余广群²

1. 阜阳师范学院物理与电子工程学院, 阜阳 236037;
2. 阜阳市肿瘤医院乳腺外科, 阜阳 236018

收稿日期:2017-02-13 修回日期:2017-05-16 出版日期:2018-05-25 发布日期:2018-05-25
作者简介:刘广东(1972-),男,博士,副教授,从事微波医学成像研究,E-mail:liu_guang_dong@126.com
基金资助:
国家自然科学基金（51271059）、安徽高校省级自然科学研究重点项目（KJ2017A343）和安徽省科技计划（1501031114，1604a0702037）资助项目

Time-Domain Microwave Breast Screening Technique with Reconstructing Cole-Cole Model Parameters

LIU Guangdong¹, YU Guangqun²

1. School of Physical and Electronic Engineering, Fuyang Normal College, Fuyang 236037, China;
2. Breast Surgery, Fuyang Cancer Hospital, Fuyang 236018, China

Received:2017-02-13 Revised:2017-05-16 Online:2018-05-25 Published:2018-05-25

摘要/Abstract

摘要： 提出一种时域微波层析成像新技术，分别通过非线性最优化方法、正则化方法、Cole-Cole建模方法，有效地克服了时域微波成像技术在筛查早期乳腺肿瘤出现的成像问题非线性、病态特性及乳腺组织色散特性等困难.在二维的数值算例中，考虑噪声影响，仿真结果初步证实：该技术检测小尺寸乳腺肿瘤是可行的；易于发现浅层肿瘤；且反演静态电导率的精度最高.

关键词: Cole-Cole模型, 时域, 微波层析成像, 乳腺筛查

Abstract: A novel time-domain technique for microwave tomography imaging is proposed. In the methodology three main difficulties, nonlinearity and ill-posedness of microwave imaging problem, and dispersion characteristics of breast tissues, are effectively circumvented by nonlinear optimization method, regularization technique, and introduction of a Cole-Cole model, respectively. It is preliminarily confirmed by a two-dimensional numerical example in which noise is considered. It shows that the inversion technique is feasible to detect small breast tumors. It is easy to find shallow tumors and accuracy in estimating static conductivity is best.

Key words: Cole-Cole model, time domain, microwave tomography imaging, breast screening

中图分类号:

刘广东, 余广群. 重建Cole-Cole模型参数的时域微波乳腺筛查技术[J]. 计算物理, 2018, 35(3): 313-320.

LIU Guangdong, YU Guangqun. Time-Domain Microwave Breast Screening Technique with Reconstructing Cole-Cole Model Parameters[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2018, 35(3): 313-320.

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重建Cole-Cole模型参数的时域微波乳腺筛查技术

Time-Domain Microwave Breast Screening Technique with Reconstructing Cole-Cole Model Parameters

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