A BIMODAL RECONSTRUCTION METHOD FOR BREAST CANCER IMAGING
A BIMODAL RECONSTRUCTION METHOD FOR BREAST CANCER IMAGING
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DOI：
10.2528/pier11050408
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发表时间：
2011-01-01
影响因子：
6.7
通讯作者：
Pistorius, S.
中科院分区：
文献类型：
--
作者：
Flores-Tapia, D.;O'Halloran, M.;Pistorius, S.
乳腺微波雷达（BMR）已被提议作为乳腺成像的替代模式。该技术通过使用超宽带微波波形照射扫描区域并记录来自乳房结构的反射来形成乳房区域的反射率图。然而，BMR图像需要由有经验的医生解释，因为乳房区域的位置和密度可能使恶性病变的检测成为一项困难的任务。本文提出了一种基于BMR和电阻抗成像（EIT）的双峰乳腺图像重建方法。该技术使用其对应的BMR图像形成乳房区域阻抗图的估计。该估计用于初始化基于单调性原理的EIT重建方法。所提出的方法产生了有前途的结果时，应用于MRI衍生的数字乳腺体模。
Breast Microwave Radar (BMR) has been proposed as an alternative modality for breast imaging. This technology forms a reflectivity map of the breast region by illuminating the scan area using ultra wide band microwave waveforms and recording the reflections from the breast structures. Nevertheless, BMR images require to be interpreted by an experienced practitioner since the location and density of the breast region can make the detection of malignant lesions a difficult task. In this paper, a novel bimodal breast imaging reconstruction method based on the use of BMR and Electrical Impedance Tomography (EIT) is proposed. This technique forms an estimate of the breast region impedance map using its corresponding BMR image. This estimate is used to initialize an EIT reconstruction method based on the monotonicity principle. The proposed method yielded promising results when applied to MRI-derived numeric breast phantoms.