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Analysis of rapid multi-focal-zone ARFI imaging.

Publication ,  Journal Article
Rosenzweig, S; Palmeri, M; Nightingale, K
Published in: IEEE transactions on ultrasonics, ferroelectrics, and frequency control
February 2015

Acoustic radiation force impulse (ARFI) imaging has shown promise for visualizing structure and pathology within multiple organs; however, because the contrast depends on the push beam excitation width, image quality suffers outside of the region of excitation. Multi-focal-zone ARFI imaging has previously been used to extend the region of excitation (ROE), but the increased acquisition duration and acoustic exposure have limited its utility. Supersonic shear wave imaging has previously demonstrated that through technological improvements in ultrasound scanners and power supplies, it is possible to rapidly push at multiple locations before tracking displacements, facilitating extended depth of field shear wave sources. Similarly, ARFI imaging can utilize these same radiation force excitations to achieve tight pushing beams with a large depth of field. Finite element method simulations and experimental data are presented, demonstrating that single- and rapid multi-focal-zone ARFI have comparable image quality (less than 20% loss in contrast), but the multi-focal-zone approach has an extended axial region of excitation. Additionally, as compared with single-push sequences, the rapid multi-focalzone acquisitions improve the contrast-to-noise ratio by up to 40% in an example 4-mm-diameter lesion.

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Published In

IEEE transactions on ultrasonics, ferroelectrics, and frequency control

DOI

EISSN

1525-8955

ISSN

0885-3010

Publication Date

February 2015

Volume

62

Issue

2

Start / End Page

280 / 289

Related Subject Headings

  • Signal-To-Noise Ratio
  • Phantoms, Imaging
  • Image Processing, Computer-Assisted
  • Finite Element Analysis
  • Elasticity Imaging Techniques
  • Algorithms
  • Acoustics
  • 51 Physical sciences
  • 40 Engineering
  • 09 Engineering
 

Citation

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Rosenzweig, S., Palmeri, M., & Nightingale, K. (2015). Analysis of rapid multi-focal-zone ARFI imaging. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 62(2), 280–289. https://doi.org/10.1109/tuffc.2014.006594
Rosenzweig, Stephen, Mark Palmeri, and Kathryn Nightingale. “Analysis of rapid multi-focal-zone ARFI imaging.IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 62, no. 2 (February 2015): 280–89. https://doi.org/10.1109/tuffc.2014.006594.
Rosenzweig S, Palmeri M, Nightingale K. Analysis of rapid multi-focal-zone ARFI imaging. IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 2015 Feb;62(2):280–9.
Rosenzweig, Stephen, et al. “Analysis of rapid multi-focal-zone ARFI imaging.IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 62, no. 2, Feb. 2015, pp. 280–89. Epmc, doi:10.1109/tuffc.2014.006594.
Rosenzweig S, Palmeri M, Nightingale K. Analysis of rapid multi-focal-zone ARFI imaging. IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 2015 Feb;62(2):280–289.

Published In

IEEE transactions on ultrasonics, ferroelectrics, and frequency control

DOI

EISSN

1525-8955

ISSN

0885-3010

Publication Date

February 2015

Volume

62

Issue

2

Start / End Page

280 / 289

Related Subject Headings

  • Signal-To-Noise Ratio
  • Phantoms, Imaging
  • Image Processing, Computer-Assisted
  • Finite Element Analysis
  • Elasticity Imaging Techniques
  • Algorithms
  • Acoustics
  • 51 Physical sciences
  • 40 Engineering
  • 09 Engineering