Jove
Visualize
Contact Us

Related Experiment Videos

Precision and accuracy of acoustospectrographic parameters

H J Huisman1, J M Thijssen

  • 1Department of Ophthalmology, University Hospital, Nijmegen, The Netherlands.

Ultrasound in Medicine & Biology
|January 1, 1996
PubMed
Summary

This study refines theoretical standard deviation (STD) estimates for acoustospectrographic parameters. The findings suggest that deviations from these estimates in in vivo measurements may serve as a novel tissue characterization parameter.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

CISS effect: Magnetocurrent-voltage characteristics with Coulomb interactions. II.

The Journal of chemical physics·2023
Same author

Quantitative CT perfusion imaging in patients with pancreatic cancer: a systematic review.

Abdominal radiology (New York)·2021
Same author

Interactive 3D U-net for the segmentation of the pancreas in computed tomography scans.

Physics in medicine and biology·2020
Same author

Transport gap renormalization at a metal-molecule interface using DFT-NEGF and spin unrestricted calculations.

The Journal of chemical physics·2017
Same author

Electronic components embedded in a single graphene nanoribbon.

Nature communications·2017
Same author

3D quantitative breast ultrasound analysis for differentiating fibroadenomas and carcinomas smaller than 1cm.

European journal of radiology·2017
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Area of Science:

  • Medical Imaging
  • Biomedical Ultrasound
  • Acoustics

Background:

  • Accurate estimation of standard deviation (STD) for acoustospectrographic parameters is crucial for quantitative ultrasound imaging.
  • Existing theoretical derivations for STD have limitations and require refinement.

Purpose of the Study:

  • To derive and validate expanded theoretical estimates of STD for key acoustospectrographic parameters.
  • To investigate discrepancies between theoretical predictions and measured STD in phantom and in vivo liver data.
  • To propose a novel method for organ-specific diffraction correction and introduce inhomogeneity factors.

Main Methods:

  • Theoretical derivation and simulation-based confirmation of STD estimates.
  • Application of a robust parameter estimation method to phantom and in vivo human liver data.

Related Experiment Videos

  • Investigation of windowing functions, diffraction correction, and tissue inhomogeneity (local and global).

    • Main Results:

    • Measured STD in vivo is higher than theoretically predicted values.
    • Windowing function parameters have minimal impact on STD and bias.
    • An organ-specific diffraction correction method was proposed and validated.
    • Local and global inhomogeneity were introduced as factors contributing to excess STD.

    Conclusions:

    • The developed method for estimating STD accurately predicts normal in vivo data.
    • Deviations from predicted STD values show potential as a tissue characterization parameter.
    • Organ-specific diffraction correction improves accuracy in quantitative ultrasound imaging.