Conference paper
3-D Directional Transverse Oscillations Synthetic Aperture Vector Flow Imaging with a 1024 Element Matrix Probe
3-D vector flow imaging is simulated with a 1024 element matrix array and vessels aligned with the x- and yaxes. Parabolic flow profiles with a peak velocity of 0.5 m/s are simulated with an interleaved synthetic aperture sequence with 5 emissions at a pulse repetition frequency of 15 kHz. Two-peak receive apodizations are used to induce transverse oscillations (TO) in the x- and y-directions, and a directional TO velocity estimator based on cross-correlation is used to estimate the 3 velocity components.
The relative mean bias and relative mean standard deviation are calculated for each velocity component and the velocity magnitude. For the vessel aligned with the x-axis, the bias of the x-component is -10.1%, and for the vessel aligned with the y-axis, the bias of the y-component is -2.04%. Relative mean standard deviations of the x- and y-components are in the range 10% to 17% and below 3.2% for the z-component.
Language: | English |
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Publisher: | IEEE |
Year: | 2019 |
Pages: | 364-367 |
Proceedings: | 2019 IEEE International Ultrasonics Symposium |
ISBN: | 1728145961 , 172814597X , 172814597x , 9781728145969 , 9781728145976 , 1728145953 and 9781728145952 |
ISSN: | 19485727 |
Types: | Conference paper |
DOI: | 10.1109/ULTSYM.2019.8926133 |
ORCIDs: | Stuart, Matthias Bo and Jensen, Jørgen Arendt |