Jove
Visualize
Contact Us
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

Related Experiment Videos

Texture in tissue echograms. Speckle or information?

J M Thijssen1, B J Oosterveld

  • 1Biophysics Laboratory, Institute of Ophthalmology, Academic Hospital, Nijmegen, The Netherlands.

Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine
|April 1, 1990
PubMed
Summary
This summary is machine-generated.

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

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

An evaluation of our experience in position verification of catheters used for interstitial high-dose-rate brachytherapy of solitary bladder tumors.

Brachytherapy·2017
Same author

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

European journal of radiology·2017
Same author

Image effects in transport at metal-molecule interfaces.

The Journal of chemical physics·2015

This study explores how ultrasound speckle patterns in biological tissues relate to acoustic properties and transducer characteristics. Analyzing speckle statistics enables tissue characterization and structural assessment, advancing diagnostic echography.

Area of Science:

  • Medical Imaging
  • Acoustic Physics
  • Biomedical Engineering

Background:

  • Biological tissues are modeled using acoustic parameters and structural properties.
  • Ultrasound beam formation and the point spread function (PSF) define echographic resolution.
  • Speckle formation in echograms arises from interference patterns of scattered ultrasound waves.

Purpose of the Study:

  • To quantitatively compare speckle dimensions with transducer sampling volumes.
  • To investigate the influence of tissue characteristics and transducer parameters on speckle formation.
  • To explore statistical methods for tissue characterization based on speckle analysis.

Main Methods:

  • Modeling biological tissues based on acoustic parameters and structure.

Related Experiment Videos

  • Analysis of continuous wave and pulsed transducer operation, including beam formation and PSF.
  • Quantitative comparison of speckle dimensions to transducer sampling volume.
  • Statistical analysis of speckle characteristics, including gray level histogram and autocorrelation function.
  • Evaluation of pre- and postprocessing effects on lesion detectability.

    • Main Results:

    • For fully developed speckle, tissue characteristics are reflected in the mean echolevel, not speckle size.
    • Speckle size is significantly influenced by transducer bandwidth, frequency, and geometry.
    • Tissue attenuation causes depth-dependent increases in lateral speckle size.
    • Low scattering site density allows for tissue characterization via statistical speckle analysis.
    • Autocorrelation analysis quantifies structural order in tissues, supported by clinical studies.

    Conclusions:

    • Speckle analysis, particularly using statistical methods like autocorrelation, is crucial for quantitative tissue characterization.
    • Transducer parameters and tissue properties significantly impact speckle characteristics.
    • Advanced techniques like multifocus systems and radio frequency echogram acquisition hold promise for future clinical echography development.