电介质
同轴
材料科学
体内
微波食品加热
再现性
介电常数
支持向量机
财产(哲学)
生物医学工程
计算机科学
电子工程
光学
光电子学
人工智能
医学
数学
物理
生物
电信
工程类
认识论
哲学
生物技术
统计
作者
Tuba Yilmaz,Mahmut Alp Kılıç,Matem Erdoğan,Mehmet Çayören,Doruk Tunaoğlu,İsmail Kurtoğlu,Yusuf Yaslan,Hüseyin Çayören,Akif Enes Arıkan,Serkan Teksöz,Gülden Cancan,Nuray Kepil,Sibel Erdamar,Murat Özcan,İbrahim Akduman,Tunaya Kalkan
标识
DOI:10.1088/0031-9155/61/13/5089
摘要
In the past decade, extensive research on dielectric properties of biological tissues led to characterization of dielectric property discrepancy between the malignant and healthy tissues. Such discrepancy enabled the development of microwave therapeutic and diagnostic technologies. Traditionally, dielectric property measurements of biological tissues is performed with the well-known contact probe (open-ended coaxial probe) technique. However, the technique suffers from limited accuracy and low loss resolution for permittivity and conductivity measurements, respectively. Therefore, despite the inherent dielectric property discrepancy, a rigorous measurement routine with open-ended coaxial probes is required for accurate differentiation of malignant and healthy tissues. In this paper, we propose to eliminate the need for multiple measurements with open-ended coaxial probe for malignant and healthy tissue differentiation by applying support vector machine (SVM) classification algorithm to the dielectric measurement data. To do so, first, in vivo malignant and healthy rat liver tissue dielectric property measurements are collected with open-ended coaxial probe technique between 500 MHz to 6 GHz. Cole–Cole functions are fitted to the measured dielectric properties and measurement data is verified with the literature. Malign tissue classification is realized by applying SVM to the open-ended coaxial probe measurements where as high as 99.2% accuracy (F1 Score) is obtained.
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