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-based reduction of artifacts in multishot echo-planar imaging

F Hennel1

  • 1MR Centre, FORENAP, Rouffach, 68250, France.

Journal of Magnetic Resonance (San Diego, Calif. : 1997)
|October 8, 1998
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

Quiet imaging with interleaved spiral read-out.

Magnetic resonance imaging·2002
Same author

Silent BOLD imaging.

Magma (New York, N.Y.)·2001
Same author

Determination of skeletal muscle perfusion using arterial spin labeling NMRI: validation by comparison with venous occlusion plethysmography.

Magnetic resonance in medicine·2001
Same author

Fast spin echo and fast gradient echo MRI with low acoustic noise.

Journal of magnetic resonance imaging : JMRI·2001
Same author

Anatomic MR images obtained with silent sequences.

Radiology·2000
Same author

Two-dimensional deghosting for EPI.

Magma (New York, N.Y.)·2000

This study generalizes ghost artifact reduction in echo-planar imaging (EPI) for multishot sequences. A modified interleaving scheme improves phase correction sensitivity and reduces noise issues in EPI MRI.

Area of Science:

  • Magnetic Resonance Imaging
  • Medical Physics

Background:

  • Echo-planar imaging (EPI) is susceptible to ghost artifacts, particularly in multishot sequences.
  • Existing phase correction methods for single-shot EPI are less effective for multishot EPI due to multiple ghost artifacts and noise sensitivity.

Purpose of the Study:

  • To generalize image-based phase correction for ghost artifact reduction in multishot EPI.
  • To develop a modified interleaving scheme for improved ghost artifact correction in multishot EPI.

Main Methods:

  • Generalization of the Buonocore and Gao phase correction method to multishot EPI.
  • Implementation of a modified interleaving scheme with alternating trajectory directions and an odd number of shots.

Main Results:

Related Experiment Videos

  • The standard method applied to multishot EPI is highly sensitive to noise.
  • The proposed modified interleaving scheme results in a single, half-field-of-view ghost, similar to single-shot EPI.
  • The modified scheme allows for effective phase correction with usual noise sensitivity.

    • Conclusions:

    • A modified interleaving scheme effectively reduces ghost artifacts in multishot EPI.
    • This approach enhances the robustness and applicability of image-based phase correction for multishot EPI MRI.