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TitlePreparation and characterization of poly(vinyl-alcohol) phantoms mimicking fibrous tissue
Publication TypeConference Paper
Year of Publication2009
AuthorsDawson, A., Gouws G., and Harris P.D.
Conference NameProceedings - IEEE Ultrasonics Symposium
Date Published2009
KeywordsAnisotropic microstructures, Anisotropy, Attenuation coefficient, Constant velocities, Fibrous tissue, Freeze Casting, Microstructure, SEM image, Tissue phantom, Ultrasonics
AbstractMicrostructured PVA phantoms mimicking fibrous tissue have been made using a simple freeze casting process. SEM images reveal highly anisotropic microstructure with dimensions of the order of 5-20 um. Characterization of a sample from 20-50 MHz reveals a constant velocity of 1560 ms-1 and an attenuation coefficient slope of approximately 0.25 dB/(mm-MHz). ©2009 IEEE.

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