一种新型校准方法的超宽带微波成像系统用于乳腺癌检测

2011 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems Pub Date : 2011-10-05 DOI:10.1109/BIOWIRELESS.2011.5724350

Yazhou Wang, A. Fathy, M. Mahfouz

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引用次数: 17

摘要

一种用于早期乳腺癌检测的微波成像系统原型已经开发出来。该系统基于脉冲超宽带(UWB)雷达技术。我们的系统采用了一种新颖实用的校准方法来去除由于皮肤后向散射和Tx/Rx天线耦合而产生的大接收信号，并强调来自感兴趣对象的反射/散射。该校准方法对于在恶性组织与健康组织介电特性差异不大于10%的低对比度条件下鉴别恶性组织至关重要。该系统已被用于从乳房模型中检测圆柱形目标。利用这种新颖的标定方法，我们的系统在低对比度条件下成功地检测和定位了直径为5mm的目标。本文将详细讨论实验设置和实验成像结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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UWB microwave imaging system with a novel calibration approach for breast cancer detection

A microwave imaging system prototype has been developed for early breast cancer detection. The system is based on impulse Ultra-Wideband (UWB) radar technology. A novel, practical calibration method has been applied in our system to remove the large received signals due to both skin backscattering and Tx/Rx antenna coupling, and to underline the reflection/scattering from object of interest. This calibration method is crucial to identify the malignant tissues in a low-contrast condition that the difference of dielectric properties between malignant tissues and healthy tissues is not more than 10%. The system has been used to detect the cylindrical targets from a breast model. With this novel calibration approach, our system has successfully detected and localized the targets with a diameter of 5mm in a low-contrast condition. Details of the experimental setup and experimental imaging results will be discussed in this paper.

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来源期刊

2011 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems

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