H-1 Polyacrylamide-Gel Based Phantom for Ultrasonic Elasticity Imaging(Medical ultrasound, High power ultrasound)

概要

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As a fundamental study for a tissue-mimicking phantom for ultrasound elastography stable and tunable elastic and echographic properties, we have investigated properties of polyacrylamide gel, a typical chemical gel which shows higher stability than physical gels such as gelatin or agar, as the base of phantom and metal oxide fine particles for controlling echogenicity of the gel. It was found that by changing the concentration of acrylamide in the gel in the range of 5 to 20%, gels with appropriate Young's moduli could be obtained and by changing the concentration of TiO2 in the range of 3 to 300 mg/ml, echogenicity was significantly modified in aqueous dispersion. These data suggest the possibility of tissue-mimicking phantom for ultrasonic elastography with polyacrylamide gels.
超音波エレクトロニクスの基礎と応用に関するシンポジウム運営委員会の論文
2004-10-27