透析患者の血液を対象とした開放終端同軸プローブによる複素比誘電率の測定と透析効果

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: 2011/12/01

タイトル(英語): Measurement and Hemodialysis Effect of Complex Relative Permittivity for Blood of Kidney Patients Using Open-Ended Coaxial Measurement Probe

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，透析，複素比誘電率，統計的検定　　Open-ended coaxial probe，human blood，hemodialysis，complex relative permittivity，statistical test

要約(英語): Before evaluating the quality of hemodialysis from the limited volume of human blood using a commercially available open-ended coaxial probe, we previously measured the complex relative permittivity of pure water from 200 MHz to 6 GHz with respect to its measured liquid volume, and revealed that 1.9 ml water in a beaker with a diameter of 24 mm and a depth of 2 mm gives a variation within ±0.5 % for the real part and ±7 % for the imaginary part. Based on the above finding, we measured the dielectric properties of 2.5 ml whole blood at 25℃ for 10 normal healthy subjects and 9 hemodialysis patients. The measured results on healthy subjects show good agreement with the data reported by Gabriel for human blood at 37℃, while they provide different dispersion characteristics of straight lines for their Cole-Cole plots. The measured results on the patients give further different dispersion characteristics in comparison with the healthy subjects. In order to investigate the above differences statistically, the student t-test was conducted to reveal that permittivity at infinite frequency for the Cole-Cole plots is significantly different with a level of 1 % among its averaged values for normal healthy subjects and patients before dialysis.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.131 No.12 （2011） 特集：電気関係学会東海支部連合大会

本誌掲載ページ: 2046-2050 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/131/12/131_12_2046/_article/-char/ja/