Pixel-based ultrasound image reconstruction: Impact of grid size on signal frequency content

Mahdi Bayat; Alireza Nabavizadeh; Azra Alizad; Mostafa Fatemi

doi:10.1109/ULTSYM.2015.0383

Pixel-based ultrasound image reconstruction: Impact of grid size on signal frequency content

Mahdi Bayat
, Alireza Nabavizadeh
, Azra Alizad
, Mostafa Fatemi

Chancellor's Office (Rochester)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The effect of grid size on the frequency content of the pixel-based image reconstruction algorithms is discussed. It is shown that coarse grid sizes result in simultaneous decimation and down conversion of the axial data. Results of simulations and phantom studies are presented which show the amount of decimation and predicted frequency shifts. The effect of this frequency shift and down-sampling is then studied in terms of a bias in the displacement when narrow-band algorithms are used for speckle tracking.

Original language	English (US)
Title of host publication	2015 IEEE International Ultrasonics Symposium, IUS 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781479981823
DOIs	https://doi.org/10.1109/ULTSYM.2015.0383
State	Published - Nov 13 2015
Event	IEEE International Ultrasonics Symposium, IUS 2015 - Taipei, Taiwan, Province of China Duration: Oct 21 2015 → Oct 24 2015

Publication series

Name	2015 IEEE International Ultrasonics Symposium, IUS 2015

Other

Other	IEEE International Ultrasonics Symposium, IUS 2015
Country/Territory	Taiwan, Province of China
City	Taipei
Period	10/21/15 → 10/24/15

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

Keywords

pixel-based imaging
plane wave imaging
speckle tracking
Synthetic aperture

Publisher link

10.1109/ULTSYM.2015.0383

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Bayat, M., Nabavizadeh, A., Alizad, A., & Fatemi, M. (2015). Pixel-based ultrasound image reconstruction: Impact of grid size on signal frequency content. In 2015 IEEE International Ultrasonics Symposium, IUS 2015 Article 7329429 (2015 IEEE International Ultrasonics Symposium, IUS 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ULTSYM.2015.0383

Pixel-based ultrasound image reconstruction: Impact of grid size on signal frequency content. / Bayat, Mahdi; Nabavizadeh, Alireza; Alizad, Azra et al.
2015 IEEE International Ultrasonics Symposium, IUS 2015. Institute of Electrical and Electronics Engineers Inc., 2015. 7329429 (2015 IEEE International Ultrasonics Symposium, IUS 2015).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Bayat, M, Nabavizadeh, A, Alizad, A & Fatemi, M 2015, Pixel-based ultrasound image reconstruction: Impact of grid size on signal frequency content. in 2015 IEEE International Ultrasonics Symposium, IUS 2015., 7329429, 2015 IEEE International Ultrasonics Symposium, IUS 2015, Institute of Electrical and Electronics Engineers Inc., IEEE International Ultrasonics Symposium, IUS 2015, Taipei, Taiwan, Province of China, 10/21/15. https://doi.org/10.1109/ULTSYM.2015.0383

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title = "Pixel-based ultrasound image reconstruction: Impact of grid size on signal frequency content",

abstract = "The effect of grid size on the frequency content of the pixel-based image reconstruction algorithms is discussed. It is shown that coarse grid sizes result in simultaneous decimation and down conversion of the axial data. Results of simulations and phantom studies are presented which show the amount of decimation and predicted frequency shifts. The effect of this frequency shift and down-sampling is then studied in terms of a bias in the displacement when narrow-band algorithms are used for speckle tracking.",

keywords = "pixel-based imaging, plane wave imaging, speckle tracking, Synthetic aperture",

author = "Mahdi Bayat and Alireza Nabavizadeh and Azra Alizad and Mostafa Fatemi",

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N2 - The effect of grid size on the frequency content of the pixel-based image reconstruction algorithms is discussed. It is shown that coarse grid sizes result in simultaneous decimation and down conversion of the axial data. Results of simulations and phantom studies are presented which show the amount of decimation and predicted frequency shifts. The effect of this frequency shift and down-sampling is then studied in terms of a bias in the displacement when narrow-band algorithms are used for speckle tracking.

AB - The effect of grid size on the frequency content of the pixel-based image reconstruction algorithms is discussed. It is shown that coarse grid sizes result in simultaneous decimation and down conversion of the axial data. Results of simulations and phantom studies are presented which show the amount of decimation and predicted frequency shifts. The effect of this frequency shift and down-sampling is then studied in terms of a bias in the displacement when narrow-band algorithms are used for speckle tracking.

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KW - plane wave imaging

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PB - Institute of Electrical and Electronics Engineers Inc.

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ER -

Pixel-based ultrasound image reconstruction: Impact of grid size on signal frequency content

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