Investigation of the Phase of Nonlinear Echoes From Microbubbles During Amplitude Modulation

Sara B Keller,Ting Yu Lai,Lance De Koninck,Michalakis A Averkiou

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control（2022）

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摘要

Contrast-enhanced ultrasound (CEUS) imaging relies on distinguishing between microbubble and tissue echoes. Amplitude modulation (AM), a nonlinear pulsing scheme, has been developed to take advantage of the amplitude-dependent nonlinearity of microbubble echoes. However, with AM, tissue nonlinear propagation can also degrade the image contrast. Segmentation of CEUS images based on amplitude-depend...

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关键词

Mathematical models,Imaging,Ultrasonic imaging,Scattering,Oscillators,Finite impulse response filters,Image segmentation

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