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

Dynamic scan-plane tracking using MR position monitoring

J A Derbyshire1, G A Wright, R M Henkelman

  • 1Department of Medical Biophysics, University of Toronto, Sunnybrook Health Science Centre, Imaging Research, Ontario, Canada.

Journal of Magnetic Resonance Imaging : JMRI
|August 14, 1998
PubMed
Summary

This study introduces a magnetic resonance (MR)-based method to track subject motion using small samples. The system adaptively adjusts the magnetic resonance imaging (MRI) scan plane to maintain image slice registration despite subject movement.

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

Multiple-mouse magnetic resonance imaging with cryogenic radiofrequency probes for evaluation of brain development.

NeuroImage·2022
Same author

Kctd13-deficient mice display short-term memory impairment and sex-dependent genetic interactions.

Human molecular genetics·2018
Same author

The Treatment of Hip Disease.

The Hospital·2018
Same author

Spatial gene expression analysis of neuroanatomical differences in mouse models.

NeuroImage·2017
Same author

Correction: Bumble bees regulate their intake of essential protein and lipid pollen macronutrients.

The Journal of experimental biology·2017
Same author

Bumble bees regulate their intake of essential protein and lipid pollen macronutrients.

The Journal of experimental biology·2016

Area of Science:

  • Medical Imaging
  • Biomedical Engineering
  • Physics

Background:

  • Subject motion during Magnetic Resonance Imaging (MRI) scans can significantly degrade image quality and lead to misregistration.
  • Accurate tracking of subject position is crucial for maintaining the desired imaging plane throughout the acquisition process.
  • Existing methods may be limited in their ability to compensate for complex or unpredictable subject movements in real-time.

Purpose of the Study:

  • To develop and validate an MR-based method for real-time tracking of subject motion.
  • To enable adaptive adjustments of the MRI scan plane to compensate for subject movement.
  • To improve the registration and quality of serially acquired MRI slices.

Main Methods:

  • A novel technique utilizing three small, triangularly configured samples attached to the subject to determine three-dimensional positions.

Related Experiment Videos

  • Calculation of a rigid body transformation based on the updated sample positions relative to initial positions.
  • Integration of this transformation with adaptive feedback controls to dynamically update the MRI scan plane prescription.

    • Main Results:

    • Experimental demonstration of the scan-plane tracking procedure using a standard imaging phantom and a human subject's head.
    • Successful acquisition of well-registered image slices despite introduced subject motion (translations and rotations).
    • Adaptive compensation for subject motion, ensuring consistent imaging of the prescribed section.

    Conclusions:

    • The presented MR-based method effectively tracks subject motion in real-time.
    • Adaptive scan-plane adjustment successfully compensates for subject movement, improving image slice registration.
    • This technique holds promise for enhancing the robustness and accuracy of MRI acquisitions, particularly in scenarios involving patient motion.