Online Journal
電子ジャーナル
IF値: 1.8(2022年)→1.9(2023年)

英文誌(2004-)

Journal of Medical Ultrasonics

一度このページでloginされますと,Springerサイト
にて英文誌のFull textを閲覧することができます.

cover

1990 - Vol.17

Vol.17 No.04

Original Article(原著)

(0358 - 0363)

熱力学法による動物組織のB⁄Aのin vitro測定

Measurement of B⁄A of Animal Tissue by the Thermodynamic Method in vitro

朝比奈 哲也, 遠藤 信行, 茂木 龍太

Tetsuya ASAHINA, Nobuyuki ENDOH, Ryuta MOGI

神奈川大学 工学部 電気工学科

Department of Electrical Engineering, Faculty of Engineering, Kanagawa University

キーワード : Nonlinearity Parameter, in vitro, Thermodynamic Method

In the last ten years, research on nonlinear acoustics has been widely reported in the medical ultrasonics fields. We will able to diagnose the stage of illnesses qualitatively by measuring B⁄A values in–vivo, because the B⁄A values contain significant physical information about tissue. For the final diagnosis, we need to acquire many kinds of B⁄A values. We measured the B⁄A values of animal tissue in–vitro using the thermodynamic method. We found that the temperature dependences of B⁄A for pork liver, fat and an agar phantom ranged from 20 to 40 degrees. Pork liver and fat have B⁄A values of 7.8 to 9.2 and 10.2 to 11.2, respectively, and the agar phantom was 5.0 to 5.6. These values linearly increased with temperature.