| 重建Cole-Cole模型参数的时域微波乳腺筛查技术 |
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| 引用本文： | 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. DOI: 10.19596/j.cnki.1001-246x.7638 |
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| 作者姓名： | 刘广东 余广群 |
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| 作者单位： | 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 |
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| 基金项目： | 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 |
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| 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.
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| 关 键 词： | Cole-Cole模型 时域 微波层析成像 乳腺筛查 |
| 收稿时间： | 2017-02-13 |
| 修稿时间： | 2017-05-16 |
Time-Domain Microwave Breast Screening Technique with Reconstructing Cole-Cole Model Parameters |
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| 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. DOI: 10.19596/j.cnki.1001-246x.7638 |
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| Authors: | LIU Guangdong YU Guangqun |
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| Affiliation: | 1. School of Physical and Electronic Engineering, Fuyang Normal College, Fuyang 236037, China;2. Breast Surgery, Fuyang Cancer Hospital, Fuyang 236018, China |
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| 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. |
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| Keywords: | Cole-Cole model time domain microwave tomography imaging breast screening |
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