Abstract
Tensor velocity imaging (TVI) in a 3-D volume is investigated through simulations and experiments conducted using a Vermon 3 MHz 1024 element phased array (Vermon S.A., Tours, France) along with the experimental scanner SARUS. The flow-rig with a parabolic flow profile was positioned along the x direction. The data is acquired by a recursive interleaved synthetic aperture sequence with 5 emissions at a pulse repetition frequency of 5 kHz to produce estimates at a volume rate of 500 Hz. A directional transverse oscillations velocity estimator based on cross-correlation is used to estimate the velocity components in the three Cartesian directions. The simulations were performed at peak velocities (vp) from 0.1 m/s to 1 m/s. At vp = 1 m/s, the estimates were achieved with relative mean bias (RB) less than -13.3% and relative mean standard deviation (RSD) less than 5%. The experiments were conducted at a vp of 0.25 m/s, and the estimates for (vx ,vy ,vz ) were obtained with RBs of (5.35, 3.02, 1.00)% and RSDs of (5.03, 4.87, 1.27)%.
Original language | English |
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Title of host publication | 2020 IEEE International Ultrasonics Symposium (IUS) |
Number of pages | 4 |
Publisher | IEEE |
Publication date | 2020 |
ISBN (Print) | 978-1-7281-5449-7 |
ISBN (Electronic) | 978-1-7281-5448-0 |
DOIs | |
Publication status | Published - 2020 |
Event | 2020 IEEE International Ultrasonics Symposium - Virtual symposium, Las Vegas, United States Duration: 6 Sep 2020 → 11 Sep 2020 https://2020.ieee-ius.org/ |
Conference
Conference | 2020 IEEE International Ultrasonics Symposium |
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Location | Virtual symposium |
Country/Territory | United States |
City | Las Vegas |
Period | 06/09/2020 → 11/09/2020 |
Internet address |