Microwave Radar-Based Differential Breast Cancer Imaging: Imaging in Homogeneous Breast Phantoms and Low Contrast Scenarios
Microwave Radar-Based Differential Breast Cancer Imaging: Imaging in Homogeneous Breast Phantoms and Low Contrast Scenarios
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DOI：
10.1109/tap.2010.2048860
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发表时间：
2010-07-01
影响因子：
5.7
通讯作者：
Benjamin, Ralph
中科院分区：
文献类型：
--
作者：
Klemm, Maciej;Leendertz, Jack. A.;Benjamin, Ralph
本文提出了一种改进的基于雷达的乳腺癌成像天线阵列。这一改进是通过将阵列中的天线数量增加到31个单元以及改进天线设计本身来实现的。使用一个实验装置，均匀弯曲的乳房幻影，我们已经证明了显着的成像改善与新的天线阵列。新系统还能够检测乳房内任何位置的7 mm直径肿瘤幻影，甚至距离皮肤层4 mm。此外，我们在低对比度情况下显示了良好的成像结果，其中肿瘤和正常组织之间的介电对比度降低到2：1。所提出的结果清楚地表明了天线的特性对成像性能的巨大影响。
This paper presents an improved antenna array for radar-based breast cancer imaging. The improvement was achieved by increasing the number of antennas in the array to 31 elements, as well as by improving the antenna design itself. Using an experimental setup, with homogeneous curved breast phantoms, we have demonstrated substantial imaging improvement with the new antenna array. The new system is also able to detect 7 mm-diameter tumor phantoms in any location within the breast, even as close as 4 mm from the skin layer. Additionally, we have shown good imaging results in low-contrast scenarios, where the dielectric contrast between tumor and normal tissue was reduced to 2:1. Presented results clearly demonstrate the large impact of antenna's characteristics on imaging performance.