早期乳腺肿瘤的超宽带微波稳健波束形成成像检测系统  

Ultra-wideband microwave robust Capon beamforming imaging system for early breast cancer detection

作　　者：肖夏[1] 宋航[1] 王梁[1] 王宗杰[1] 路红[2] 

机构地区：[1]天津大学,电子信息工程学院,天津300072 [2]天津医科大学附属肿瘤医院放射科,乳腺癌防治国家教育部重点实验室,天津300060

出　　处：《物理学报》2014年第19期80-86,共7页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:61271323);毫米波国家重点实验室开放基金(批准号:K200913)资助的课题~~

摘　　要：提出了一种基于自主设计小型超宽带天线的微波稳健波束形成(RCB)成像肿瘤检测系统.仿真结果表明,该检测系统对肿瘤反射信号有很高的敏感度.在简单平面模型和核磁共振成像图(MRI)导出模型中进行仿真检测实验,并将天线阵列接收信号用RCB算法进行成像处理.从乳房重构图像中能够得到正确的肿瘤位置及大小信息,实现了平面模型中最小直径3 mm和MRI导出模型中最小直径4 mm的肿瘤检测,证实了该检测系统用于早期乳腺肿瘤检测的可行性.An ultra-wideband（UWB） microwave robust Capon beamforming imaging system is presented based on a selfdesigned compact UWB antenna for early breast cancer detection. Simulation results show that the proposed detection systemissensitivetotumorresponse. Simulatedtumordetectionexperimentsarecarriedoutinbothsimpleplanarbreast model and magnetic resonance imagining（MRI）-derived model using the antenna array. Robust Capon beamforming algorithm is employed to reconstruct the breast image. Successful detection of 3-mm-diameter tumor is achieved in the planar model and the same detection result of 4-mm-diameter tumor is achieved in the MRI-derived model. The right information of the tumor can be obtained from the imaging results, which demonstrates the feasibility of the proposed system in early breast cancer detection.

关 键 词：肿瘤检测 稳健波束形成 超宽带 微波成像 

分 类 号：R737.9[医药卫生—肿瘤] TP274[医药卫生—临床医学]