Difference-Frequency-Based Ultrasonic Contrast Imaging of Material Elasticities

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 construc...

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Bibliographic Details
Main Authors: Kim, Dong Hun, Kwon, Young Seok, Kang, Dong-Hyun, Shim, Shinyong, Park, Jun Hong, Lee, Byung Chul
Format: Conference Proceeding
Language:English
Subjects:
Acoustics
difference frequency ultrasound
Elasticity
Imaging
Imaging phantoms
nonlinear acoustics
ring array
Ultrasonic imaging
Online Access:Request full text
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Summary: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 32×32 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.
ISSN:1948-5727
DOI:10.1109/IUS54386.2022.9957442