ヒト血液の複素比誘電率と温度との相関分析

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2013/02/01

タイトル(英語): Correlation Analysis between Complex Relative Permittivity and Temperature for Human Blood

著者名: 武田　明（中部大学生命健康科学部臨床工学科／名古屋工業大学大学院），高田　和之（豊田工業高等専門学校），長尾　尋智（岩倉病院），王　建青（名古屋工業大学大学院），藤原　修（名古屋工業大学大学院）

著者名(英語): Akira Takeda (Chubu University/Graduate School of Engineering, Nagoya Institute of Technology), Kazuyuki Takata (Toyota National Colleges of Technology), Hirotomo Nagao (Iwakura Hospital), Jianqing Wang (Graduate School of Engineering, Nagoya Institute of Technology), Osamu Fujiwara (Graduate School of Engineering, Nagoya Institute of Technology)

キーワード: 開放終端同軸プローブ，血液，複素比誘電率，温度，相関分析　　Open-ended coaxial probe，blood，complex relative permittivity，temperature，correlation analysis

要約(英語): For evaluating the quality of hemodialysis from the limited volume of human blood using a commercially available open-ended coaxial probe, we previously measured for 10 normal healthy subjects and 9 patients who require hemodialysis the dielectric properties of 2.5ml whole blood with a temperature of 25 degrees centigrade in a syringe with a diameter of 20mm and a depth of 8mm. In this study, we measured the complex relative permittivity of water and human blood when changing temperature from 25 to 37 degrees centigrade in order to examine the correlation between them, and calculated their Pearson product-moment correlation coefficients for εr' and εr'' along with significant probability P based on a t-test. It should be noted that P is a reference probability to determine whether or not a null hypothesis can be rejected, and that the P value of 0.05 is commonly used as a significance level for a statistical test. As a result, it was found for the complex relative permittivity of water that there is approximately good agreement between the measured results and calculated ones from the Kaatze formula expressed as a function of temperature, and that strong correlations with P < 0.05 are also confirmed between the complex relative permittivity and temperature. For the human blood, on the other hand, we found that a strong correlation with P < 0.05 is observed between εr'' and temperature, while there is not always significant correlation with P > 0.05 between εr' and temperature.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.133 No.2 （2013） 特集：省電力時代の電子回路技術

本誌掲載ページ: 350-355 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/133/2/133_350/_article/-char/ja/