3-D Synthetic Aperture High Volume Rate Tensor Velocity Imaging Using 1024 Element Matrix Probe

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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 languageEnglish
Title of host publication 2020 IEEE International Ultrasonics Symposium (IUS)
Number of pages4
PublisherIEEE
Publication date2020
ISBN (Print)978-1-7281-5449-7
ISBN (Electronic)978-1-7281-5448-0
DOIs
Publication statusPublished - 2020
Event2020 IEEE International Ultrasonics Symposium - Virtual symposium, Las Vegas, United States
Duration: 6 Sep 202011 Sep 2020
https://2020.ieee-ius.org/

Conference

Conference2020 IEEE International Ultrasonics Symposium
LocationVirtual symposium
CountryUnited States
CityLas Vegas
Period06/09/202011/09/2020
Internet address

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