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

Pulsatile flow artifacts in fast magnetization-prepared sequences

T A Tasciyan1, D G Mitchell

  • 1Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, PA 19107.

Journal of Magnetic Resonance Imaging : JMRI
|March 1, 1994
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

The IMAP-Ultra Energetic Neutral Atom (ENA) Imager.

Space science reviews·2025
Same author

Interstellar Mapping And Acceleration Probe: The NASA IMAP Mission.

Space science reviews·2025
Same author

Closed Fluxtubes and Dispersive Proton Conics at Jupiter's Polar Cap.

Geophysical research letters·2022
Same author

Pluto's Interaction With Energetic Heliospheric Ions.

Journal of geophysical research. Space physics·2022
Same author

Charge-State-Dependent Energization of Suprathermal Ions During Substorm Injections Observed by MMS in the Magnetotail.

Journal of geophysical research. Space physics·2020
Same author

High-Energy (>10 MeV) Oxygen and Sulfur Ions Observed at Jupiter From Pulse Width Measurements of the JEDI Sensors.

Geophysical research letters·2020
Same journal

A Quantitative Modification of VI-RADS for Bladder Cancer at the Ureteral Orifice: A Reader Study on MRI With Varying Experience Levels.

Journal of magnetic resonance imaging : JMRI·2026
Same journal

Editorial for "Integrating nnU-Net Segmentation and Clinical-Radiomics for Multicenter Prediction of Soft Tissue Sarcoma Grade and Ki-67 Expression".

Journal of magnetic resonance imaging : JMRI·2026
Same journal

Structural MRI Volumetry Index for Differentiation of Progressive Supranuclear Palsy From Parkinson's Disease and Multiple System Atrophy by Automatic Segmentation: A Comparison With Magnetic Resonance Parkinsonism Index.

Journal of magnetic resonance imaging : JMRI·2026
Same journal

Integrating nnU-Net Segmentation and Clinical-Radiomics for Multicenter MRI-Based Assessment of Soft Tissue Sarcoma Grade and Ki-67 Expression.

Journal of magnetic resonance imaging : JMRI·2026
Same journal

Optimization of Respiratory Training Methods for Cardiac Magnetic Resonance Imaging.

Journal of magnetic resonance imaging : JMRI·2026
Same journal

Editorial for "Voxel-Wise Radiomics Habitat Analysis of Post-Treatment Gliomas for Noninvasive Differentiation of True Progression and Pseudoprogression".

Journal of magnetic resonance imaging : JMRI·2026
See all related articles

Fast magnetic resonance imaging reduces pulsatile flow artifacts in abdominal imaging. Optimizing magnetization preparation during diastole and modifying phase-encoding schemes significantly improve image quality by minimizing these common artifacts.

Area of Science:

  • Medical Imaging
  • Physics
  • Cardiovascular Imaging

Background:

  • Fast magnetic resonance imaging (MRI) sequences enable rapid clinical acquisitions.
  • Pulsatile flow artifacts can degrade image quality in MRI, despite rapid acquisition techniques.
  • Understanding aortic pulsatile flow artifacts in inversion-recovery (IR)-prepared abdominal MRI is crucial.

Purpose of the Study:

  • To explore the causes of aortic pulsatile flow artifacts in IR-prepared abdominal MRI.
  • To investigate the impact of various parameters on these artifacts.
  • To validate simulation results with clinical human subject imaging.

Main Methods:

  • Simulation of flow signal within an 8-mm-thick section.
  • Fourier transformation of simulated flow signal to determine artifact location and extent.

Related Experiment Videos

  • Validation of simulation findings using abdominal MRI scans of human subjects.

    • Main Results:

    • Recording all encodings within one cardiac cycle reduced artifacts in nonsegmented acquisitions with sequential phase-encoding.
    • Sequential phase-encoding order increased artifacts in segmented acquisitions.
    • Magnetization preparation during diastole reduced artifacts in short TI acquisitions.
    • Modifying the phase-encoding scheme further reduced flow artifacts in clinical acquisitions.

    Conclusions:

    • Optimizing acquisition parameters, including magnetization preparation timing and phase-encoding strategy, can significantly reduce pulsatile flow artifacts in abdominal MRI.
    • Specific strategies are effective for nonsegmented and segmented acquisitions.
    • These findings aid in improving diagnostic accuracy in abdominal MRI by enhancing image quality.