Volumetric 3-D Vector Flow Measurements using a 62+62 Row-Column Addressed Array

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Abstract

Experimental results from volumetric 3-D vector flow measurements using a 62+62 row-column addressed (RCA) array are presented. A plane-by-plane steered transmit sequence and its post processing steps are described for obtaining 3-D vector flow in a volume. A modified version of the transverse oscillation (TO) velocity estimator is used, which exploits the focal lines generated with the tall elements of a RCA array. Validation of the method is made in a flow-rig system where circulating blood mimicking fluid produced a steady parabolic flow profile with a flow rate of 13.7 mL/s, translating to a peak velocity of 24.1 cm/s. A volume rate of 16.4 volumes per second is obtained, and estimated flow rates based on nine steered planes within the volume are investigated. A positive bias is found for all investigated planes lying in the range from 6.5% to 21.2% with the standard deviation being less than 4% for all cases. It is concluded that volumetric 3-D vector flow estimation is feasible with an RCA array with only 124 elements.
Original languageEnglish
Title of host publicationProceedings of 2017 IEEE International Ultrasonics Symposium
Number of pages4
PublisherIEEE
Publication date2017
DOIs
Publication statusPublished - 2017
Event2017 IEEE International Ultrasonics Symposium (IUS) - Omni Shoreham Hotel, Washington, United States
Duration: 6 Sep 20179 Sep 2017
http://ewh.ieee.org/conf/ius/2017/

Conference

Conference2017 IEEE International Ultrasonics Symposium (IUS)
LocationOmni Shoreham Hotel
CountryUnited States
CityWashington
Period06/09/201709/09/2017
Internet address

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