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采用 DBIM-TwIST 算法的多频率微波层析成像系统的设计与实验验证。

Design and Experimental Validation of a Multiple-Frequency Microwave Tomography System Employing the DBIM-TwIST Algorithm.

机构信息

Faculty of Natural and Mathematical Sciences, King's College London, Strand, London WC2B 4PH, UK.

MediWise Ltd., London E1 2AX, UK.

出版信息

Sensors (Basel). 2018 Oct 16;18(10):3491. doi: 10.3390/s18103491.

DOI:10.3390/s18103491
PMID:30332843
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6209939/
Abstract

We present a first prototype of a wideband microwave tomography system with potential application to medical imaging. The system relies on a compact and robust printed monopole antenna which can operate in the 1.0⁻3.0 GHz range when fully immersed in commonly used coupling liquids, such as glycerine⁻water solutions. By simulating the proposed imaging setup in CST Microwave Studio, we study the signal transmission levels and array sensitivity for different target and coupling liquid media. We then present the experimental prototype design and data acquisition process, and show good agreement between experimentally measured data and results from the CST simulations. We assess imaging performance by applying our previously proposed two-dimensional (2-D) DBIM TwIST-algorithm to both simulated and experimental datasets, and demonstrate that the system can reconstruct simple cylindrical targets at multiple frequencies.

摘要

我们提出了一种具有潜在医学成像应用的宽带微波层析成像系统的初步原型。该系统依赖于紧凑且坚固的印刷单极天线，当完全浸入常用的耦合液体（如甘油-水溶液）中时，该天线可以在 1.0⁻3.0 GHz 范围内工作。通过在 CST 微波工作室中模拟所提出的成像设置，我们研究了不同目标和耦合液体介质的信号传输水平和阵列灵敏度。然后，我们展示了实验原型设计和数据采集过程，并显示了实验测量数据与 CST 模拟结果之间的良好一致性。我们通过将我们之前提出的二维 (2-D) DBIM TwIST 算法应用于模拟和实验数据集来评估成像性能，并证明该系统可以在多个频率下重建简单的圆柱形目标。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/aee956b20698/sensors-18-03491-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/cd354ead67a6/sensors-18-03491-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/69d36a2a375b/sensors-18-03491-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/5fdfec1c930c/sensors-18-03491-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/ffb45b2ac3a3/sensors-18-03491-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/f9340d8dffb6/sensors-18-03491-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/e5e0e0fd915f/sensors-18-03491-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/4d03850666a8/sensors-18-03491-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/b3828f8bfa46/sensors-18-03491-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/344b6843db2d/sensors-18-03491-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/8062ba717985/sensors-18-03491-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/94caa57165d8/sensors-18-03491-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/0f0cd1acbb40/sensors-18-03491-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/aee956b20698/sensors-18-03491-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/cd354ead67a6/sensors-18-03491-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/69d36a2a375b/sensors-18-03491-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/5fdfec1c930c/sensors-18-03491-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/ffb45b2ac3a3/sensors-18-03491-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/f9340d8dffb6/sensors-18-03491-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/e5e0e0fd915f/sensors-18-03491-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/4d03850666a8/sensors-18-03491-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/b3828f8bfa46/sensors-18-03491-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/344b6843db2d/sensors-18-03491-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/8062ba717985/sensors-18-03491-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/94caa57165d8/sensors-18-03491-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/0f0cd1acbb40/sensors-18-03491-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bf2/6209939/aee956b20698/sensors-18-03491-g013.jpg

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