Measurement of the temperature-dependent speed of sound and change in Gruneisen parameter of tissue-mimicking materials

被引：0

作者：

Bakaric, Marina ^{[1
]}

Ivory, Aoife ^{[2
]}

Zeqiri, Bajram ^{[2
]}

Cox, Ben T. ^{[1
]}

Treeby, Bradley E. ^{[1
]}

机构：

[1] UCL, Dept Med Phys & Biomed Engn, London, England

[2] Natl Phys Lab, Ctr Chem Environm & Med Sci, Teddington, Middx, England

来源：

2019 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS) | 2019年

基金：

英国工程与自然科学研究理事会;

关键词：

metrology; phantoms; photoacoustics; thermometry; ultrasound; PHANTOMS;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Knowledge of the temperature dependence of the material properties of tissue-mimicking materials is useful or essential for many applications. This includes photoacoustic thermometry where the temperature dependence of the Gruneisen parameter of tissues leads to changes in the recorded photoacoustic signal amplitude with temperature. Here, a setup is described that can measure the temperature dependence of the speed of sound and photoacoustic conversion efficiency (mu(a)Gamma) of tissue-mimicking materials. Agar-based phantoms, copolymer-in-oil, gel wax, PVCP, silicone and water were characterised in the newly developed setup for temperatures between 22 degrees C and 50 degrees C. This information provides a valuable resource for material characterisation and future development of tissue-mimicking materials.

引用

页码：1029 / 1032

页数：4

共 15 条

[11] Using optoacoustic imaging for measuring the temperature dependence of Gruneisen parameter in optically absorbing solutions [J].