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Ultrasonic Reverberation Clutter Suppression Using Multiphase Apodization With Cross Correlation.

Junseob Shin, Yu Chen, Harshawn Malhi

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

|November 9, 2016

Summary

This summary is machine-generated.

A new ultrasound beamforming technique, multiphase apodization with cross correlation (MPAX), effectively suppresses reverberation clutter. This method enhances image contrast for improved diagnostic accuracy in clinical settings.

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Area of Science:

Medical Imaging
Acoustics
Biomedical Engineering

Background:

Reverberation clutter significantly degrades ultrasound image quality due to multiple reflections.
This clutter causes undesirable fill-in, reducing image contrast and hindering accurate diagnosis.

Purpose of the Study:

To introduce a novel beamforming technique, multiphase apodization with cross correlation (MPAX), for reverberation clutter suppression.
To improve upon the existing dual apodization with cross correlation (DAX) method.

Main Methods:

MPAX utilizes multiple pairs of complementary sinusoidal phase apodizations.
This technique intentionally introduces grating lobes to generate an improved weighting matrix.
The weighting matrix effectively suppresses reverberation clutter signals.

Main Results:

MPAX demonstrated high effectiveness in suppressing reverberation clutter in experimental sponge phantom studies.
Preliminary in vivo results from human subjects confirmed MPAX's clutter suppression capabilities.

Conclusions:

MPAX is a highly effective technique for mitigating reverberation clutter in ultrasound imaging.
The technique shows significant potential for producing high-contrast ultrasound images, aiding clinical diagnosis.