@Article{cmes.2020.09387,
AUTHOR = {Wei Zhao, Shuai Feng, Yadan Wang, Yuanguo Wang, Zhihui Han, Hu Peng},
TITLE = {A Joint Delay-and-Sum and Fourier Beamforming Method for High Frame Rate Ultrasound Imaging},
JOURNAL = {Computer Modeling in Engineering \& Sciences},
VOLUME = {123},
YEAR = {2020},
NUMBER = {1},
PAGES = {427--440},
URL = {http://www.techscience.com/CMES/v123n1/38500},
ISSN = {1526-1506},
ABSTRACT = {Frame rate is an important metric for ultrasound imaging systems, and high 
frame rates (HFR) benefit moving-target imaging. One common way to obtain HFR 
imaging is to transmit a plane wave. Delay-and-sum (DAS) beamformer is a conventional
beamforming algorithm, which is simple and has been widely implemented in clinical 
application. Fourier beamforming is an alternative method for HFR imaging and has high 
levels of imaging efficiency, imaging speed, and good temporal dynamic characteristics. 
Nevertheless, the resolution and contrast performance of HFR imaging based on DAS or 
Fourier beamforming are insufficient due to the single plane wave transmission. To 
address this problem, a joint DAS and Fourier beamforming method is introduced in this 
study. The proposed method considers the different distributions of sidelobes in DAS 
imaging and Fourier imaging and combines the angular spectrum and DAS to reconstruct 
ultrasound images. The proposed method is evaluated on simulation and experimental 
phantom datasets to compare its performance with DAS and Fourier beamforming 
methods. Results demonstrate that the proposed method improves image effective 
dynamic range and resolution while also retaining a high frame rate of the ultrasound 
imaging systems. The proposed method improves the effective dynamic range along axial 
and lateral directions by 10 dB, compared to standard DAS and Fourier beamforming.},
DOI = {10.32604/cmes.2020.09387}
}