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

Image reconstruction for echo planar imaging with nonequidistant k-space sampling.

H Bruder1, H Fischer, H E Reinfelder

  • 1Siemens Medical Division, Erlangen, West Germany.

Magnetic Resonance in Medicine
|February 1, 1992
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

Metabolomics of stallion seminal plasma: Identification of potential fertility biomarkers based on differences between high and low pregnancy stallions.

Journal of equine veterinary science·2026
Same author

[Assessment tool's validation study for a simulation-based skin suturing skill].

Annales de chirurgie plastique et esthetique·2024
Same author

Retrospective study to estimate the prevalence and describe the clinicopathological characteristics, treatments received, and outcomes of HER2-low breast cancer.

ESMO open·2023
Same author

The German Network for Personalized Medicine to enhance patient care and translational research.

Nature medicine·2023
Same author

A preliminary study of cerebral blood flow, aging and dementia in people with Down syndrome.

Journal of intellectual disability research : JIDR·2020
Same author

ACCIDENTAL FINDING OF SYNCHRONOUS BILATERAL DUCTAL CARCINOMA IN SITU IN A YOUNG MAN REFERRED TO MASTECTOMY DUE TO GYNECOMASTIA - AND WHAT IF LIPOSUCTION HAVE BEEN USED? CASE REPORT.

Acta chirurgiae plasticae·2020

Echo planar imaging (EPI) uses a single excitation for k-space scanning. This study presents methods to convert non-equidistant EPI data to a Cartesian grid for improved image reconstruction and artifact reduction.

Area of Science:

  • Magnetic Resonance Imaging (MRI)
  • Image Reconstruction
  • Signal Processing

Background:

  • Echo planar imaging (EPI) is an MRI technique that rapidly acquires k-space data after a single excitation.
  • Conventional EPI data sampling is often non-equidistant, posing challenges for standard image reconstruction algorithms.
  • Ghosting artifacts are a common issue in EPI, necessitating effective mitigation strategies.

Purpose of the Study:

  • To present a technically feasible method for acquiring EPI data using a sinusoidal readout gradient.
  • To describe techniques for converting non-equidistant k-space data to a Cartesian grid for 2D-FFT reconstruction.
  • To detail filtering methods for minimizing ghosting artifacts in EPI.

Main Methods:

  • Utilized a sinusoidal readout gradient for k-space sampling in EPI.

Related Experiment Videos

  • Employed data conversion to a Cartesian grid via interpolation and generalized transformations.
  • Applied filtering techniques to reduce EPI-specific ghosting artifacts.

    • Main Results:

    • Demonstrated successful conversion of non-equidistant EPI data to a Cartesian grid.
    • Presented results from computer simulations validating the proposed methods.
    • Showcased experimental EPI images acquired on a 2-T whole-body MRI system, illustrating artifact reduction.

    Conclusions:

    • The proposed methods enable conventional 2D-FFT reconstruction of EPI data acquired with sinusoidal gradients.
    • Effective artifact reduction, particularly ghosting, was achieved through filtering techniques.
    • The study validates the practical application of these techniques in experimental MRI settings.