An overview of ultra-wideband microwave imaging via space-time beamforming for early-stage breast-cancer detection
An overview of ultra-wideband microwave imaging via space-time beamforming for early-stage breast-cancer detection
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DOI：
10.1109/map.2005.1436217
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发表时间：
2005-02-01
影响因子：
3.5
通讯作者：
Hagness, SC
中科院分区：
文献类型：
--
作者：
Li, X;Bond, EJ;Hagness, SC
超宽带（UWB）微波成像最近已被提出用于检测小的恶性乳腺肿瘤。本文就该方法的研究现状进行综述。首先，我们介绍了微波成像通过空时（MIST）波束形成的概念和相关的信号处理算法。这些信号处理技术的目的是形成散射微波能量的空间图像，并从其散射特征识别恶性病变的存在和位置。接下来，我们提出了基于时域差分模拟的数值研究，以证明MIST波束形成在俯卧和仰卧配置中检测小的恶性乳腺病变的功效。最后，超宽带微波成像的实验可行性证明了使用初始成像原型和多层乳房模型。
Ultra-wideband (UWB) microwave imaging has recently been proposed for detecting small malignant breast tumors. In this article, we review the current research status of this approach. First, we introduce the concept of microwave imaging via space-time (MIST) beamforming and related signal-processing algorithms. The objective of these signal-processing techniques is to form a spatial image of scattered microwave energy, and to identify the presence and location of malignant lesions from their scattering signatures. Next, we present numerical studies based on Finite-Difference Time-Domain simulations to demonstrate the efficacy of MIST beamforming for detecting small malignant breast lesions in both prone and supine configurations. Finally, the experimental feasibility of UWB microwave imaging is demonstrated using an initial imaging prototype and multilayered breast phantoms.