NDLI: Feasibility study of blood velocity vector estimation using three types of transducer

Content Provider	IEEE Xplore Digital Library
Author	Hyungjoon Lim Hwan Shim Youngtae Kim Byeonggeun Cheon
Copyright Year	2012
Description	Author affiliation: Digital Media & Commun. R&D Center, Samsung Electron. Co., Ltd., Suwon, South Korea (Hyungjoon Lim; Hwan Shim; Youngtae Kim; Byeonggeun Cheon)
Abstract	Ultrasound color Doppler imaging has been a useful technique for obtaining vascular blood flow information. The conventional method, however, suffers from angle dependency when the blood flow is normal to the ultrasound beam direction so that it is difficult to visualize the blood flow. To overcome this angle dependency, various vector Doppler imaging methods with multiple transmit and receive sub-apertures have been proposed and showed an angle independent vessel flow information. However, most of them are evaluated on a linear array transducer. This paper evaluates a vector Doppler algorithm consisting of one transmit (TX) sub-aperture and two receive (RX) sub-apertures based on the convex and phased array transducer. Vessel flow velocity magnitudes and directions obtained by the vector Doppler using the convex and phased array show, for convex transducer mean direction error of 8.6843 degrees and 0.3860 m/s of mean velocity magnitude error and for phased array 16.1693 degrees and 0.0247 m/s mean errors respectively. These result indicate that convex and phased array also provide an reasonable vessel velocity magnitude and flow direction comparing to the vessel information of linear transducer which are errors of 2.9440 degrees and 0.1710 m/s respectively.
Starting Page	346
Ending Page	349
File Size	877906
Page Count	4
File Format	PDF
ISBN	9781467345613
ISSN	19485719
e-ISBN	9781467345620
DOI	10.1109/ULTSYM.2012.0085
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-07
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Arrays Transducers Vectors Doppler effect Ultrasonic imaging Apertures Geometry vessel flow Vector Doppler ultrasound
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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