This paper explores the competency of the time domain ultra-wideband (UWB)-circular synthetic aperture radar (CSAR) to image the breast and detect tumors. The image reconstruction is performed using a time domain global back projection technique adapted to the circular trajectory data acquisition. This paper also proposes a sectional image reconstruction method to compensate for the group velocity changes in different layers of a multilayer medium. Experiments on an advanced breast phantom examines the suitability of this technique for breast tumor imaging. The advanced breast phantom is designed based on a MRI of a real patient, fabricated using 3D printing technology, and filled with liquids that emulate normal and cancerous tissues. The measurement results, compared with MRI imaging of the phantom, demonstrate the suitability of the UWB-CSAR method for breast tumor imaging. This method can be a tool for early diagnosis as well as for treatment monitoring during chemotherapy or radiotherapy.

中文翻译：

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使用时域UWB环形SAR技术对乳腺癌进行微波成像。

本文探讨了时域超宽带（UWB）-圆形合成孔径雷达（CSAR）对乳房成像和检测肿瘤的能力。使用适于圆形轨迹数据采集的时域全局反投影技术来执行图像重建。本文还提出了一种截面图像重建方法，以补偿多层介质不同层中的群速度变化。在先进的乳房幻像上进行的实验检验了该技术对乳腺肿瘤成像的适用性。高级乳房幻像是基于真实患者的MRI设计的，使用3D打印技术制造，并填充有模仿正常和癌性组织的液体。测量结果与体模的MRI成像相比，证明了UWB-CSAR方法对乳腺肿瘤成像的适用性。该方法可以作为早期诊断以及化学疗法或放射疗法期间治疗监测的工具。