High Frame Rate Synthetic Aperture 3D Vector Flow Imaging

Carlos Armando Villagómez Hoyos, Simon Holbek, Matthias Bo Stuart, Jørgen Arendt Jensen

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Abstract

3-D blood flow quantification with high spatial and temporal resolution would strongly benefit clinical research on cardiovascular pathologies. Ultrasonic velocity techniques are known for their ability to measure blood flow with high precision at high spatial and temporal resolution. However, current volumetric ultrasonic flow methods are limited to one velocity component or restricted to a reduced field of view (FOV), e.g. fixed imaging planes, in exchange for higher temporal resolutions. To solve these problems, a previously proposed accurate 2-D high frame rate vector flow imaging (VFI) technique is extended to estimate the 3-D velocity components inside a volume at high temporal resolutions (< 1 ms). The full 3-D vector velocities are obtained from beamformed volumetric data using synthetic aperture (SA) techniques combined with a 2-D matrix array. The method is validated using Field II simulations of flow along a straight vessel phantom and with complex flow from a 3-D computational fluid dynamics (CFD) model of a carotid bifurcation. Results from the simulations show that the 3-D velocity components are estimated with a mean relative bias of -12.8%, -10% and 1.42% for the Vx, Vy and Vz respectively; each presented a mean relative standard deviation of 11.8%, 12.3% and 1.11%.
Original languageEnglish
Title of host publicationProceedings of IEEE International Ultrasonics Symposium 2016
Number of pages4
PublisherIEEE
Publication date2016
ISBN (Print)978-1-4673-9897-8
DOIs
Publication statusPublished - 2016
Event2016 IEEE International Ultrasonics Symposium - Convention Center Vinci Tours, Tours, France
Duration: 18 Sep 201621 Sep 2016

Conference

Conference2016 IEEE International Ultrasonics Symposium
LocationConvention Center Vinci Tours
CountryFrance
CityTours
Period18/09/201621/09/2016

Cite this

Villagómez Hoyos, C. A., Holbek, S., Stuart, M. B., & Jensen, J. A. (2016). High Frame Rate Synthetic Aperture 3D Vector Flow Imaging. In Proceedings of IEEE International Ultrasonics Symposium 2016 IEEE. https://doi.org/10.1109/ULTSYM.2016.7728664