Phantoms for elastography

Author

Hall, Timothy J. ; Bilgen, Mehmet ; Insana, Michael F. ; Chaturvedi, Pooja

Author_Institution

Dept. of Radiol., Univ. of Kansas Med. Center, Kansas City, KS, USA

Volume

2

fYear

1996

fDate

3-6 Nov 1996

Firstpage

1193

Abstract

Several viscoelastic properties of gelatin materials used in sonography and elastography phantoms are reported. Also reported is a device that was designed and built to make these measurements. Measurement precision with this device is typically within 1%. Finite element analysis was used to study boundary conditions and compressor size (compared to sample size) effects on the estimated elastic modulus. Results of these measurements indicate that gelatin gels are a good choice for elastography phantoms, but that the stiffness of these materials increases with time

Keywords

biomechanics; biomedical equipment; biomedical ultrasonics; elasticity; finite element analysis; gelatin; viscoelasticity; boundary conditions; compressor size effects; elastography phantoms; material stiffness; measurement precision; medical diagnostic imaging; palpation; sample size effects; sonography; stiffness; tissue elasticity; Acoustic pulses; Acoustic scattering; Biological materials; Biological tissues; Elasticity; Imaging phantoms; Manufacturing; Stress; Ultrasonography; Viscosity;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1996. Proceedings., 1996 IEEE

Conference_Location

San Antonio, TX

ISSN

1051-0117

Print_ISBN

0-7803-3615-1

Type

conf

DOI

10.1109/ULTSYM.1996.584204

Filename

584204