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On the Relationship between Spatial Coherence and In Situ Pressure for Abdominal Imaging.

Publication ,  Journal Article
Zhang, B; Pinton, GF; Nightingale, KR
Published in: Ultrasound in medicine & biology
August 2021

Tissue harmonic signal quality has been shown to improve with elevated acoustic pressure. The peak rarefaction pressure (PRP) for a given transmit, however, is limited by the Food and Drug Administration guidelines for mechanical index. We have previously demonstrated that the mechanical index overestimates in situ PRP for tightly focused beams in vivo, due primarily to phase aberration. In this study, we evaluate two spatial coherence-based image quality metrics-short-lag spatial coherence and harmonic short-lag spatial coherence-as proxy estimates for phase aberration and assess their correlation with in situ PRP in simulations and experiments when imaging through abdominal body walls. We demonstrate strong correlation between both spatial coherence-based metrics and in situ PRP (R2 = 0.77 for harmonic short-lag spatial coherence, R2 = 0.67 for short-lag spatial coherence), an observation that could be leveraged in the future for patient-specific selection of acoustic output.

Duke Scholars

Published In

Ultrasound in medicine & biology

DOI

EISSN

1879-291X

ISSN

0301-5629

Publication Date

August 2021

Volume

47

Issue

8

Start / End Page

2310 / 2320

Related Subject Headings

  • Ultrasonography
  • Swine
  • Pressure
  • Phantoms, Imaging
  • Animals
  • Acoustics
  • Abdomen
  • 3202 Clinical sciences
  • 1103 Clinical Sciences
 

Citation

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ICMJE
MLA
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Zhang, B., Pinton, G. F., & Nightingale, K. R. (2021). On the Relationship between Spatial Coherence and In Situ Pressure for Abdominal Imaging. Ultrasound in Medicine & Biology, 47(8), 2310–2320. https://doi.org/10.1016/j.ultrasmedbio.2021.03.008
Zhang, Bofeng, Gianmarco F. Pinton, and Kathryn R. Nightingale. “On the Relationship between Spatial Coherence and In Situ Pressure for Abdominal Imaging.Ultrasound in Medicine & Biology 47, no. 8 (August 2021): 2310–20. https://doi.org/10.1016/j.ultrasmedbio.2021.03.008.
Zhang B, Pinton GF, Nightingale KR. On the Relationship between Spatial Coherence and In Situ Pressure for Abdominal Imaging. Ultrasound in medicine & biology. 2021 Aug;47(8):2310–20.
Zhang, Bofeng, et al. “On the Relationship between Spatial Coherence and In Situ Pressure for Abdominal Imaging.Ultrasound in Medicine & Biology, vol. 47, no. 8, Aug. 2021, pp. 2310–20. Epmc, doi:10.1016/j.ultrasmedbio.2021.03.008.
Zhang B, Pinton GF, Nightingale KR. On the Relationship between Spatial Coherence and In Situ Pressure for Abdominal Imaging. Ultrasound in medicine & biology. 2021 Aug;47(8):2310–2320.
Journal cover image

Published In

Ultrasound in medicine & biology

DOI

EISSN

1879-291X

ISSN

0301-5629

Publication Date

August 2021

Volume

47

Issue

8

Start / End Page

2310 / 2320

Related Subject Headings

  • Ultrasonography
  • Swine
  • Pressure
  • Phantoms, Imaging
  • Animals
  • Acoustics
  • Abdomen
  • 3202 Clinical sciences
  • 1103 Clinical Sciences