Journal
2022 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IEEE IUS)
Volume -, Issue -, Pages -Publisher
IEEE
DOI: 10.1109/IUS54386.2022.9957438
Keywords
vector Doppler; multi-probe; plane wave; vector flow imaging; 3-D; ultrasound; sparse array; ULA-OP
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Funding
- Italian Ministry of Education, University and Research (PRIN 2020) [20205HFXE7]
- Royal Society [URF/R1/211049]
- Wellcome Trust/EPSRC iFIND project IEH Award [102431]
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This study evaluates the feasibility of using multiple 2-D sparse array probes to extend high frame rate vector Doppler imaging to a three-dimensional region of interest (ROI) and achieves accurate velocity estimations.
The Doppler approach more frequently used for estimating two components of the velocity vector is based on the use of the dual beams associated with either two single-element probes or two sub-apertures of a linear array. With the diffusion of high frame rate (HFR) sequences, these methods have been adapted to the investigation of a planar region of interest (ROI). In this study, we evaluate the feasibility of using multiple 2-D sparse array probes to extend HFR vector Doppler imaging to a 3-D ROI The results of this work confirm that accurate estimations of the velocity can be obtained. Our results show bias and standard deviation errors below 4.5 % and 13.0 %, respectively, and an achievable rate of 750 volumes per second.
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