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Clutter filtering issues in speckle tracking for two-dimensional blood velocity estimation: a potential solution based on compounded imaging

Solveig Søvik Alnes, Abigaïl Swillens UGent, Patrick Segers UGent, Hans Torp and Lasse Lovstakken (2012) PROCEEDINGS : IEEE ULTRASONICS SYMPOSIUM. p.427-429
abstract
Clutter filtering issues remains a major limitation in multi-dimensional blood velocity estimation. In this work we investigate how compounded plane wave imaging can be used to minimize clutter filtering issues when using speckle tracking for two-dimensional velocity estimation. By using a dual scan angle approach one can ensure a sufficient beam-to-flow angle for most imaging scenarios. Segmentation algorithms based on the estimated power and mean axial velocity were used to determine whether estimates were to be discarded or combined. The proposed setup was evaluated in a simulation study (Field II) for straight tube flow with parabolic flow profiles, and for a realistic CFD flow model of a carotid bifurcation. It was shown that the clutter filtering issues were significantly reduced when using compounded imaging and speckle tracking. Regions corrupted by the clutter filter in one scan was not corrupted in the other scan. Thus, consistent estimates could be obtained from the whole region of interest. In addition, the estimates were averaged and the variance reduced in regions where neither scan was corrupted. Regression analysis showed a 10-16 % decrease in standard deviation for the lateral velocity component and a 17 -19 % decrease for the axial component.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
in
PROCEEDINGS : IEEE ULTRASONICS SYMPOSIUM
Proc.- IEEE Ultrason. Symp.
issue title
2011 IEEE international ultrasonics symposium
pages
427 - 429
publisher
IEEE
place of publication
New York, NY, USA
conference name
IEEE International Ultrasonics Symposium 2011 (IUS 2011)
conference location
Orlando, FL, USA
conference start
2011-10-18
conference end
2011-10-21
Web of Science type
Proceedings Paper
Web of Science id
000309918400101
ISSN
1051-0117
ISBN
9781457712524
DOI
10.1109/ULTSYM.2011.0102
language
English
UGent publication?
yes
classification
P1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2028007
handle
http://hdl.handle.net/1854/LU-2028007
date created
2012-02-13 11:48:51
date last changed
2013-04-17 13:15:55
@inproceedings{2028007,
  abstract     = {Clutter filtering issues remains a major limitation in multi-dimensional blood velocity estimation. In this work we investigate how compounded plane wave imaging can be used to minimize clutter filtering issues when using speckle tracking for two-dimensional velocity estimation. By using a dual scan angle approach one can ensure a sufficient beam-to-flow angle for most imaging scenarios. Segmentation algorithms based on the estimated power and mean axial velocity were used to determine whether estimates were to be discarded or combined. The proposed setup was evaluated in a simulation study (Field II) for straight tube flow with parabolic flow profiles, and for a realistic CFD flow model of a carotid bifurcation. It was shown that the clutter filtering issues were significantly reduced when using compounded imaging and speckle tracking. Regions corrupted by the clutter filter in one scan was not corrupted in the other scan. Thus, consistent estimates could be obtained from the whole region of interest. In addition, the estimates were averaged and the variance reduced in regions where neither scan was corrupted. Regression analysis showed a 10-16 \% decrease in standard deviation for the lateral velocity component and a 17 -19 \% decrease for the axial component.},
  author       = {S{\o}vik Alnes, Solveig and Swillens, Abiga{\"i}l and Segers, Patrick and Torp, Hans and Lovstakken, Lasse},
  booktitle    = {PROCEEDINGS : IEEE ULTRASONICS SYMPOSIUM},
  isbn         = {9781457712524},
  issn         = {1051-0117},
  language     = {eng},
  location     = {Orlando, FL, USA},
  pages        = {427--429},
  publisher    = {IEEE},
  title        = {Clutter filtering issues in speckle tracking for two-dimensional blood velocity estimation: a potential solution based on compounded imaging},
  url          = {http://dx.doi.org/10.1109/ULTSYM.2011.0102},
  year         = {2012},
}

Chicago
Søvik Alnes, Solveig, Abigaïl Swillens, Patrick Segers, Hans Torp, and Lasse Lovstakken. 2012. “Clutter Filtering Issues in Speckle Tracking for Two-dimensional Blood Velocity Estimation: a Potential Solution Based on Compounded Imaging.” In Proceedings : Ieee Ultrasonics Symposium, 427–429. New York, NY, USA: IEEE.
APA
Søvik Alnes, S., Swillens, A., Segers, P., Torp, H., & Lovstakken, L. (2012). Clutter filtering issues in speckle tracking for two-dimensional blood velocity estimation: a potential solution based on compounded imaging. PROCEEDINGS : IEEE ULTRASONICS SYMPOSIUM (pp. 427–429). Presented at the IEEE International Ultrasonics Symposium 2011 (IUS 2011), New York, NY, USA: IEEE.
Vancouver
1.
Søvik Alnes S, Swillens A, Segers P, Torp H, Lovstakken L. Clutter filtering issues in speckle tracking for two-dimensional blood velocity estimation: a potential solution based on compounded imaging. PROCEEDINGS : IEEE ULTRASONICS SYMPOSIUM. New York, NY, USA: IEEE; 2012. p. 427–9.
MLA
Søvik Alnes, Solveig, Abigaïl Swillens, Patrick Segers, et al. “Clutter Filtering Issues in Speckle Tracking for Two-dimensional Blood Velocity Estimation: a Potential Solution Based on Compounded Imaging.” Proceedings : Ieee Ultrasonics Symposium. New York, NY, USA: IEEE, 2012. 427–429. Print.