8チャンネルリニアアレイ型電気・超音波イメージング装置

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2014/12/01

タイトル(英語): An 8-channel Linear Array System for Imaging of Electrical and Ultrasonic Properties

著者名: 濱津　文哉（佐賀大学大学院工学系研究科システム創成科学専攻），木本　晃（佐賀大学大学院工学系研究科先端融合工学専攻），高橋　英嗣（佐賀大学大学院工学系研究科先端融合工学専攻）

著者名(英語): Fumiya Hamatsu (Advanced Systems Control Engineering, Graduate School and Engineering, Saga University), Akira Kimoto (Faculty of Sci. Eng., Saga University), Eiji Takahashi (Faculty of Sci. Eng., Saga University)

キーワード: 圧電セラミック素子，リニアアレイ，超音波イメージング，インピーダンスイメージング　　piezoelectric element，linear array，ultrasonic imaging，impedance imaging

要約(英語): We propose here an 8-channel linear array system for imaging electrical and ultrasonic properties in human tissues. An array of piezoelectric ceramic transducers (PZTs) is used for ultrasound tissue imaging whereas the electrode in the PZTs is used for electrical impedance imaging. The capability of the system to detect a small volume with distinct electrical conductivity in tissue was evaluated using a tissue model system. The present electrical impedance imaging alone failed to accurately locate the small object with a different conductivity in the model system. However, when the reconstruction of electrical impedance was combined with ultrasonic determination of the position of the object of interest, our method successfully assessed the conductivity of the target object. Thus, synergetic use of ultrasound data in electrical impedance imaging significantly improves the accuracy of tissue impedance imaging.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.134 No.12 （2014） 特集：放電研究の最新動向

本誌掲載ページ: 644-648 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/ieejfms/134/12/134_644/_article/-char/ja/