NDLI: Does large beam-steered angle velocity compounding using plane wave transmission improve blood vector velocity estimation in a 3D carotid artery flow field?

Content Provider	IEEE Xplore Digital Library
Author	Saris, A.E.C.M. Hansen, H.H.G. Fekkes, S. Nillesen, M.M. Rutten, M.C.M. de Korte, C.L.
Copyright Year	2014
Description	Author affiliation: Dept. of Radiol. & Nucl. Med., Radboud Univ. Med. Center, Nijmegen, Netherlands (Saris, A.E.C.M.; Hansen, H.H.G.; Fekkes, S.; Nillesen, M.M.; de Korte, C.L.) \|\| Dept. of Biomed. Eng., Eindhoven Univ. of Technol., Eindhoven, Netherlands (Rutten, M.C.M.)
Abstract	Quantification of complex flow patterns with variations in the blood flow direction throughout an image plane and strong fluctuations over the cardiac cycle, requires dedicated transmission schemes. Conventional Doppler-based velocity imaging techniques are limited, due to their angle dependence and limited frame rates. New methods have been suggested to estimate the full 2D velocity vector. These methods need to be combined with intelligent transmit schemes to increase the imaging frame rate. This study investigates the performance of two different techniques to estimate the 2D blood velocity vector, both using a 2D normalized cross-correlation based displacement estimation algorithm. Normal 0° velocity estimation is compared with compound vector velocity estimation, using plane wave transmissions. Combining finite element modeling with FIELD II provided ultrasound radio frequency data of a carotid artery flow field over the entire cardiac cycle. Ultrasound radiofrequency element data were simulated for a linear array transducer $(f_{c}$ = 9 MHz, $f_{s}$ = 36 MHz, pitch = 198 μm). Plane waves were transmitted at a PRF of 2 kHz at either 0° angle only, or at sequentially changing angles of 0°, -20° and 20°. RF data were beamformed in the direction of the steered plane waves by delay-and-sum beamforming. The 0° data were additionally beamformed at angles of -20° and +20°. The horizontal velocity component was determined in three different ways: 1) directly from the 0° acquisition (PW0), 2) by compounding the axial velocity component from the 0° data beamformed at +20° and -20° $(PW0_{C}),$ or 3) by compounding the axial velocity component from the multi-angle acquisitions $(PW_{C}).$ The vertical velocity component was determined directly from the 0° acquisition. The performance of the methods was compared by calculating the root mean squared error (RMSE) between estimated and true velocity components. The results showed the ability of the PW0 and $PW0_{C}$ methods to provide accurate 2D velocity estimates. Both methods perform similarly based on the calculated RMSEs. $PW_{C}$ showed less accurate velocity estimates, i.e., higher RMSEs, which are probably caused by the reduced effective frame rate and presence of grating lobes. At present frame rate and transducer choice, velocity compounding does not seem to be beneficial for 2D velocity estimation in a carotid artery flow field.
Starting Page	1726
Ending Page	1729
File Size	3307473
Page Count	4
File Format	PDF
e-ISBN	9781479970490
DOI	10.1109/ULTSYM.2014.0428
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Estimation Vectors Imaging Ultrasonic imaging Blood Radio frequency Transducers Blood flow Vector velocity Compounding Plane wave imaging Ultrafast imaging
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
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

In vivo out-of-plane Doppler imaging based on ultrafast plane wave imaging

2D versus 3D cross-correlation-based radial and circumferential strain imaging in a 3D atherosclerotic carotid artery model using ultrafast plane wave ultrasound

Synthetic aperture flow angle estimation on in-vivo data from the carotid artery

Semi-3D strain imaging of an atherosclerotic carotid artery by multi-cross-sectional radial strain estimations using simulated multi-angle plane wave ultrasound

Real-time vector velocity profile measurement based on plane wave transmission

Vector flow mapping using plane wave ultrasound imaging

Performance evaluation of compounding and directional beamforming techniques for carotid strain imaging using plane wave transmissions

Evaluation of cross-beam vector Doppler ultrasound systems for accurate 3-D velocity measurements

Estimation of Velocity Vectors in Synthetic Aperture Ultrasound Imaging

Does large beam-steered angle velocity compounding using plane wave transmission improve blood vector velocity estimation in a 3D carotid artery flow field?

Similar Documents

In vivo out-of-plane Doppler imaging based on ultrafast plane wave imaging

2D versus 3D cross-correlation-based radial and circumferential strain imaging in a 3D atherosclerotic carotid artery model using ultrafast plane wave ultrasound

Synthetic aperture flow angle estimation on in-vivo data from the carotid artery

Semi-3D strain imaging of an atherosclerotic carotid artery by multi-cross-sectional radial strain estimations using simulated multi-angle plane wave ultrasound

Real-time vector velocity profile measurement based on plane wave transmission

Vector flow mapping using plane wave ultrasound imaging

Performance evaluation of compounding and directional beamforming techniques for carotid strain imaging using plane wave transmissions

Evaluation of cross-beam vector Doppler ultrasound systems for accurate 3-D velocity measurements

Estimation of Velocity Vectors in Synthetic Aperture Ultrasound Imaging

Does large beam-steered angle velocity compounding using plane wave transmission improve blood vector velocity estimation in a 3D carotid artery flow field?