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A numerical study of ultrafast vector flow imaging in the neonatal heart

Joris Van Cauwenberge, Lasse Lovstakken, Solveig Fadnes, Jan Vierendeels UGent, Patrick Segers UGent and Abigaïl Swillens (2015) IEEE International Ultrasonics Symposium. p.1-4
abstract
Doppler flow imaging for the visualisation of neonatal intraventricular blood flow currently still has inherent limitations: beam-to-flow angle dependency, aliasing and a too low frame rate. Ultrafast imaging and vector flow estimation may resolve these limitations, yet both still require thorough validation for the pediatric cardiac setting. Hence, a computational modelling approach in the neonatal left ventricle was employed to investigate (i) diverging wave emission to acquire images at very high frame rate and (ii) subsequent speckle tracking algorithms for vector flow estimation. Single non-tilted diverging waves with an opening angle of 60° were transmitted, at a pulse repetition frequency of 9 kHz. Speckle tracking on the acquired ultrasound images provided 2D intraventricular flow estimates at a frame rate of 180 Hz for both the apical four chamber and parasternal short axis view, and this over an entire cardiac cycle. Overall, the blood flow was reasonably accurately tracked throughout the cardiac cycle, yet several imaging artefacts were observed. Zones of low flow proved very difficult to track due to clutter filtering issues, while high spatial flow gradients caused strong underestimation of systolic outflow.
Please use this url to cite or link to this publication:
author
organization
year
type
conference (proceedingsPaper)
publication status
published
subject
keyword
SPECKLE TRACKING, Vector flow imaging, diverging waves, neonatal heart
in
IEEE International Ultrasonics Symposium
issue title
2015 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS)
pages
1 - 4
publisher
IEEE
place of publication
IEEE Xplore
conference name
IEEE International Ultrasonics Symposium (IUS)
conference location
Taipei, TAIWAN
conference start
2015-10-21
conference end
2015-10-24
Web of Science type
Proceedings Paper
Web of Science id
000366045700071
ISSN
1948-5719
ISBN
978-1-4799-8182-3
DOI
10.1109/ULTSYM.2015.0234
language
English
UGent publication?
yes
classification
P1
copyright statement
I have transferred the copyright for this publication to the publisher
id
7105330
handle
http://hdl.handle.net/1854/LU-7105330
alternative location
http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=7329148&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D7329148
date created
2016-02-29 09:53:41
date last changed
2017-01-02 09:53:18
@inproceedings{7105330,
  abstract     = {Doppler flow imaging for the visualisation of neonatal intraventricular blood flow currently still has inherent limitations: beam-to-flow angle dependency, aliasing and a too low frame rate. Ultrafast imaging and vector flow estimation may resolve these limitations, yet both still require thorough validation for the pediatric cardiac setting. Hence, a computational modelling approach in the neonatal left ventricle was employed to investigate (i) diverging wave emission to acquire images at very high frame rate and (ii) subsequent speckle tracking algorithms for vector flow estimation. Single non-tilted diverging waves with an opening angle of 60{\textdegree} were transmitted, at a pulse repetition frequency of 9 kHz. Speckle tracking on the acquired ultrasound images provided 2D intraventricular flow estimates at a frame rate of 180 Hz for both the apical four chamber and parasternal short axis view, and this over an entire cardiac cycle. Overall, the blood flow was reasonably accurately tracked throughout the cardiac cycle, yet several imaging artefacts were observed. Zones of low flow proved very difficult to track due to clutter filtering issues, while high spatial flow gradients caused strong underestimation of systolic outflow.},
  author       = {Van Cauwenberge, Joris and Lovstakken, Lasse and Fadnes, Solveig  and Vierendeels, Jan and Segers, Patrick and Swillens, Abiga{\"i}l},
  booktitle    = {IEEE International Ultrasonics Symposium},
  isbn         = {978-1-4799-8182-3},
  issn         = {1948-5719},
  keyword      = {SPECKLE TRACKING,Vector flow imaging,diverging waves,neonatal heart},
  language     = {eng},
  location     = {Taipei, TAIWAN},
  pages        = {1--4},
  publisher    = {IEEE},
  title        = {A numerical study of ultrafast vector flow imaging in the neonatal heart},
  url          = {http://dx.doi.org/10.1109/ULTSYM.2015.0234},
  year         = {2015},
}

Chicago
Van Cauwenberge, Joris, Lasse Lovstakken, Solveig Fadnes, Jan Vierendeels, Patrick Segers, and Abigaïl Swillens. 2015. “A Numerical Study of Ultrafast Vector Flow Imaging in the Neonatal Heart.” In IEEE International Ultrasonics Symposium, 1–4. IEEE Xplore: IEEE.
APA
Van Cauwenberge, J., Lovstakken, L., Fadnes, S., Vierendeels, J., Segers, P., & Swillens, A. (2015). A numerical study of ultrafast vector flow imaging in the neonatal heart. IEEE International Ultrasonics Symposium (pp. 1–4). Presented at the IEEE International Ultrasonics Symposium (IUS), IEEE Xplore: IEEE.
Vancouver
1.
Van Cauwenberge J, Lovstakken L, Fadnes S, Vierendeels J, Segers P, Swillens A. A numerical study of ultrafast vector flow imaging in the neonatal heart. IEEE International Ultrasonics Symposium. IEEE Xplore: IEEE; 2015. p. 1–4.
MLA
Van Cauwenberge, Joris, Lasse Lovstakken, Solveig Fadnes, et al. “A Numerical Study of Ultrafast Vector Flow Imaging in the Neonatal Heart.” IEEE International Ultrasonics Symposium. IEEE Xplore: IEEE, 2015. 1–4. Print.