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The influence of acoustic radiation force beam shape and location on wave spectral content for arterial dispersion ultrasound vibrometry.

Publication ,  Journal Article
Capriotti, M; Roy, T; Hugenberg, NR; Harrigan, H; Lee, H-C; Aquino, W; Guddati, M; Greenleaf, JF; Urban, MW
Published in: Physics in medicine and biology
June 2022

Objective. Arterial dispersion ultrasound vibrometry (ADUV) relies on the use of guided waves in arterial geometries for shear wave elastography measurements. Both the generation of waves through the use of acoustic radiation force (ARF) and the techniques employed to infer the speed of the resulting wave motion affect the spectral content and accuracy of the measurement. In particular, the effects of the shape and location of the ARF beam in ADUV have not been widely studied. In this work, we investigated how such variations of the ARF beam affect the induced motion and the measurements in the dispersive modes that are excited.Approach.The study includes an experimental evaluation on an arterial phantom and anin vivovalidation of the observed trends, observing the two walls of the waveguide, simultaneously, when subjected to variations in the ARF beam extension (F/N) and focus location.Main results.Relying on the theory of guided waves in cylindrical shells, the shape of the beam controls the selection and nature of the induced modes, while the location affects the measured dispersion curves (i.e. variation of phase velocity with frequency or wavenumber, multiple modes) across the waveguide walls.Significance.This investigation is important to understand the spectral content variations in ADUV measurements and to maximize inversion accuracy by tuning the ARF beam settings in clinical applications.

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Published In

Physics in medicine and biology

DOI

EISSN

1361-6560

ISSN

0031-9155

Publication Date

June 2022

Volume

67

Issue

13

Related Subject Headings

  • Ultrasonography
  • Phantoms, Imaging
  • Nuclear Medicine & Medical Imaging
  • Elasticity Imaging Techniques
  • Acoustics
  • 5105 Medical and biological physics
  • 1103 Clinical Sciences
  • 0903 Biomedical Engineering
  • 0299 Other Physical Sciences
 

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Capriotti, M., Roy, T., Hugenberg, N. R., Harrigan, H., Lee, H.-C., Aquino, W., … Urban, M. W. (2022). The influence of acoustic radiation force beam shape and location on wave spectral content for arterial dispersion ultrasound vibrometry. Physics in Medicine and Biology, 67(13). https://doi.org/10.1088/1361-6560/ac75a7
Capriotti, Margherita, Tuhin Roy, Nicholas R. Hugenberg, Hadiya Harrigan, Hon-Chi Lee, Wilkins Aquino, Murthy Guddati, James F. Greenleaf, and Matthew W. Urban. “The influence of acoustic radiation force beam shape and location on wave spectral content for arterial dispersion ultrasound vibrometry.Physics in Medicine and Biology 67, no. 13 (June 2022). https://doi.org/10.1088/1361-6560/ac75a7.
Capriotti M, Roy T, Hugenberg NR, Harrigan H, Lee H-C, Aquino W, et al. The influence of acoustic radiation force beam shape and location on wave spectral content for arterial dispersion ultrasound vibrometry. Physics in medicine and biology. 2022 Jun;67(13).
Capriotti, Margherita, et al. “The influence of acoustic radiation force beam shape and location on wave spectral content for arterial dispersion ultrasound vibrometry.Physics in Medicine and Biology, vol. 67, no. 13, June 2022. Epmc, doi:10.1088/1361-6560/ac75a7.
Capriotti M, Roy T, Hugenberg NR, Harrigan H, Lee H-C, Aquino W, Guddati M, Greenleaf JF, Urban MW. The influence of acoustic radiation force beam shape and location on wave spectral content for arterial dispersion ultrasound vibrometry. Physics in medicine and biology. 2022 Jun;67(13).
Journal cover image

Published In

Physics in medicine and biology

DOI

EISSN

1361-6560

ISSN

0031-9155

Publication Date

June 2022

Volume

67

Issue

13

Related Subject Headings

  • Ultrasonography
  • Phantoms, Imaging
  • Nuclear Medicine & Medical Imaging
  • Elasticity Imaging Techniques
  • Acoustics
  • 5105 Medical and biological physics
  • 1103 Clinical Sciences
  • 0903 Biomedical Engineering
  • 0299 Other Physical Sciences