容量式ウェアラブル胸バンド型心電計における外乱に対する耐性評価―電極シールド構造の影響―

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: 2017/04/01

タイトル(英語): Artifact Tolerance Test for Capacitive Wearable Chest-Belt Electrocardiograph―Effect of Electrode Configuration―

著者名: 加藤　祐希（東京電機大学大学院工学研究科電気電子工学専攻），元原　将策（東京電機大学大学院工学研究科電気電子工学専攻），大無田孝夫　（鈴鹿医療科学大学医用工学部臨床工学科），Azran　Azhim （Department of Biotechnology, Kulliyyah of Science, International Islamic University Malaysia），植野　彰規（東京電機大学大学院工学研究科電気電子工学専攻）

著者名(英語): Yuki Kato (Graduate School of Engineering, Tokyo Denki University), Shosaku Motohara (Graduate School of Engineering, Tokyo Denki University), Takao Ohmuta (School of Medical Engineering, Suzuka University of Medical Science), Azran Azhim (Department of Biotechnology, Kulliyyah of Science, International Islamic University Malaysia), Akinori Ueno (Graduate School of Engineering, Tokyo Denki University)

キーワード: 容量式電極，シールド構造，ウェアラブルセンシング，外乱耐性，低周波成分　　capacitive electrode，shield structure，wearable sensing，artifact tolerance，low frequency component

要約(英語): Electrocardiogram (ECG) provides useful information for the diagnosis of cardiovascular disease. In capacitive-coupled ECG sensing, electrostatic artifact and movement artifact become serious problems. In particular, low frequency components such as T wave of ECG are susceptible to the artifacts. To obtain clear ECG, high stability is required for the electrocardiograph using capacitive-coupled electrode. In this study, tolerance of capacitive wearable chest-belt electrocardiograph was tested for the electrostatic and movement artifacts. A constant electrostatic artifact was discharged repeatedly on three types of electrode having different shielding configurations, and their transient responses were compared in terms of deviation area, transient slope and recovery time. The results revealed the best tolerance of doubly-shielded five-layered electrode. The best performed five-layered electrode was used for exercise tolerance test. Then, detection rates of R-wave and T-wave of ECG, and standard deviation of base line of the recordings were calculated as tolerance indices and compared to those obtained by commercial disposable electrode. Although R-wave detection rate of the five-layered electrode decreased by 2.0%, the rate of T-wave was comparable to those of the disposable electrode. Furthermore, the standard deviation of the base line was significantly smaller than that of the disposable electrode (p<0.01).

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.137 No.4 （2017） 特集：量子・情報・エレクトロニクス医療応用

本誌掲載ページ: 607-615 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/137/4/137_607/_article/-char/ja/