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

Phase aberration effects in elastography.

T Varghese1, M Bilgen, J Ophir

  • 1Ultrasonics Laboratory, Department of Radiology, The University of Texas Medical School, Houston, TX, USA. tvarghese@facstaff.wisc.edu

Ultrasound in Medicine & Biology
|August 23, 2001
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

<i>In vivo</i> carotid strain imaging using principal strains in longitudinal view.

Biomedical physics & engineering express·2019
Same author

A Cross-Sectional Investigation of Cognition and Ultrasound-Based Vascular Strain Indices.

Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists·2019
Same author

Assessment of Iron Deposition in the Brain in Frontotemporal Dementia and Its Correlation with Behavioral Traits.

AJNR. American journal of neuroradiology·2017
Same author

MOLECULAR GENETICS IN MENTAL ILLNESS.

Medical journal, Armed Forces India·2017
Same author

Quantification of carotid artery plaque stability with multiple region of interest based ultrasound strain indices and relationship with cognition.

Physics in medicine and biology·2017
Same author

Influence of electron beam irradiation on structural and optical properties of α-Ag2WO4 nanoparticles.

Micron (Oxford, England : 1993)·2016
Same journal

Region-Specific Evaluation of Plaque Segmentation in Cross-sectional Projections of Carotid Ultrasound Images Using Deep Learning Models in a Sub-clinical Atherosclerosis Cohort.

Ultrasound in medicine & biology·2026
Same journal

Simulating the Dedifferentiation Process of Thyroid Cancer: Insights from Mouse Models and Ultrasound Imaging.

Ultrasound in medicine & biology·2026
Same journal

A Nomogram Based on Ultrasound Features for Predicting Major Intra-Operative Hemorrhage in Patients With Placenta Accreta Spectrum (PAS).

Ultrasound in medicine & biology·2026
Same journal

MedLP-HAFB-CLIP: Hierarchical Adaptive Large Model With Learnable Medical Prompts for Level II Ultrasound Standard Plane Identification.

Ultrasound in medicine & biology·2026
Same journal

Data Assimilating B-splines for Model-based Regularization in Ultrasound Vector Flow Imaging.

Ultrasound in medicine & biology·2026
Same journal

Low-Intensity Focused Ultrasound Enhances Hippocampal Neurogenesis via BDNF Pathways: Toward a Regenerative Modality for CNS Recovery.

Ultrasound in medicine & biology·2026
See all related articles

Phase aberration in ultrasound imaging minimally impacts elastography when phase errors are consistent. However, inconsistent errors, especially in post-compression signals, reduce strain estimation accuracy, affecting image quality.

Area of Science:

  • Medical Imaging
  • Ultrasound Technology
  • Biomedical Engineering

Background:

  • Phase aberration is a known artifact that degrades conventional sonograms.
  • Elastography relies on strain estimation, which can be sensitive to signal distortions.
  • Understanding phase aberration's impact is crucial for accurate ultrasound elastography.

Purpose of the Study:

  • To theoretically and computationally investigate the effects of phase aberration on ultrasound elastography.
  • To analyze how phase errors in pre- and post-compression signals influence strain estimation precision.
  • To evaluate phase aberration as an image quality factor in elastography.

Main Methods:

  • Theoretical analysis of phase aberration effects on strain estimation.

Related Experiment Videos

  • Simulation studies using the strain filter approach.
  • Comparison of phase error impact under different signal conditions (pre- vs. post-compression).

    • Main Results:

    • Phase aberration has minimal impact if phase errors are statistically similar in pre- and post-compression signals.
    • Strain estimation precision decreases significantly when phase errors are present in only one signal pair.
    • Increased phase errors in the post-compression signal, due to tissue changes, can reduce elastography accuracy.

    Conclusions:

    • Phase aberration is a significant factor affecting ultrasound elastography precision, particularly when phase errors are asymmetric.
    • The study highlights the importance of accounting for phase aberration in elastographic imaging.
    • Phase aberration acts as an image quality derating factor, comparable to attenuation and tissue motion.