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

Design and characterisation of a wall motion phantom.

J Dineley1, S Meagher, T L Poepping

  • 1Medical Physics, University of Edinburgh, Edinburgh, UK.

Ultrasound in Medicine & Biology
|September 13, 2006
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

Early diagnosis of fetal acrania.

Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology·2025
Same author

Reply.

Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology·2024
Same author

Uterine fibroids and non-informative cell-free DNA screening results.

Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology·2024
Same author

The relationship between wearable-derived sleep features and relapse in Major Depressive Disorder.

Journal of affective disorders·2024
Same author

Late first-trimester ultrasound findings can alter management after high-risk NIPT result.

Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology·2023
Same author

Predictors of engagement with remote sensing technologies for symptom measurement in Major Depressive Disorder.

Journal of affective disorders·2022

Researchers developed a novel polyvinyl alcohol cryogel (PVA-C) phantom for accurate ultrasound assessment of arterial wall motion. This tool aids in understanding cardiovascular health by simulating physiological conditions and improving diagnostic accuracy.

Area of Science:

  • Biomedical Engineering
  • Cardiovascular Research
  • Medical Imaging Physics

Background:

  • Arterial wall motion is crucial for cardiovascular health, but its assessment is challenged by accuracy and variability issues.
  • Existing ultrasound techniques for measuring wall motion require development of suitable test tools for reliable diagnostic information.

Purpose of the Study:

  • To describe a novel vessel wall phantom for use in ultrasound studies of arterial wall motion.
  • To evaluate the properties and performance of the developed phantom in simulating physiological conditions.

Main Methods:

  • A vessel wall phantom was fabricated using polyvinyl alcohol (PVA) subjected to a freeze-thaw process, creating a cryogel (PVA-C).
  • The elastic modulus, acoustic velocity, and attenuation coefficient of the PVA-C were characterized across varying freeze-thaw cycles.

Related Experiment Videos

  • Pulsatile flow was introduced to induce wall motion, with a downstream flow resistor used to manage waveform distortions.

    • Main Results:

    • The PVA-C phantom's properties (elastic modulus, acoustic velocity, attenuation) varied with the number of freeze-thaw cycles, ranging from 57 kPa to 330 kPa.
    • Pulsatile flow successfully induced wall motion, and a flow resistor mitigated gross waveform distortions.
    • A residual 20 Hz oscillation, deemed unphysiologic, was observed and attributed to PVA-C vessel vibration.

    Conclusions:

    • The developed PVA-C phantom offers a valuable tool for ultrasound studies of arterial wall motion.
    • The phantom's tunable properties and ability to simulate pulsatile flow provide a basis for improving the accuracy of cardiovascular diagnostics.
    • Further refinement is needed to eliminate residual oscillations for more accurate physiological simulation.