Difference-Frequency-Based Ultrasonic Contrast Imaging of Material Elasticities

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The nonlinear interaction of two waves causes a signal at their difference frequency. Difference-frequency ultrasound (dfUS) is highly dependent on material stiffness, making it a superior alternative to conventional linear ultrasound when it comes to elastographic contrast imaging. We have constructed a 64-element ring array for dfUS imaging based on a 32x32 2D matrix array and conducted experiments on phantoms with various material stiffnesses. The results were quantitatively analyzed and successfully used to implement an elastographic contrast image.
Publisher
IEEE
Issue Date
2022-10
Language
English
Citation

2022 IEEE International Ultrasonics Symposium (IUS)

ISSN
1948-5719
DOI
10.1109/IUS54386.2022.9957442
URI
http://hdl.handle.net/10203/305861
Appears in Collection
RIMS Conference Papers
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