Synthetic aperture flow imaging using a dual beam former approach

Synthetic Aperture (SA) flow estimation has many advantages compared to conventional ultrasound imaging in as data can be acquired continuously for the full imaging region. The accuracy of estimates can therefore be very high and the frame rate can be increased because of the continuous data acquisition. It is also possible to find the velocity in all directions and map out complex flow phenomena.

SA flow imaging requires a large number of calculations to be performed. The aim of this project is to develop a computationally efficient method for synthetic aperture velocity estimation based on a dual beam former approach. The challenge is to lower the number of emissions and still maintain the quality sufficient for flow estimation. The approach will be developed and tested through simulations, phantom studies and an implementation for clinical tests on a commercial scanner.

Commercial implementation of a full SA ultrasound scanner capable of both anatomic and flow imaging, thus increasing the diagnostic value of ultrasound imaging by a higher accuracy and frame rate of velocity estimation systems.

Click here to read the full description for Ye's project.

About Ye  
Ye has been in Denmark for three years. He is originally from Shanghai, but did his Bachelor in Signal Processing at the university in Xi’an. At the age of 22, he decided to go to Sønderborg, University of Southern Denmark, to do his Master’s degree in Mechanics and Electronics. 

When his project here at DTU is finished, Ye plans to acquire some work experience with a Danish company before returning to Shanghai.

Currently, Ye is preparing a journal paper concerning synthetic aperture flow imaging employing a two stage beamformer method. The paper concludes the results from two previous conference papers which include simulations of the method and experimental verifications. More complete parameter studies and a full comparison between simulations and experiments will be presented in this paper.

For a full list of publications, please see below