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

Prospective multiaxial motion correction for fMRI.

H A Ward1, S J Riederer, R C Grimm

  • 1Department of Radiology, Mayo Clinic, Rochester, Minnesota 55905, USA.

Magnetic Resonance in Medicine
|March 22, 2000
PubMed
Summary

This study introduces a real-time prospective correction method for head motion during functional MRI (fMRI). The technique significantly improves fMRI activation detection by correcting motion during image acquisition.

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

Continuous Associations between Remote Self-Administered Cognitive Measures and Imaging Biomarkers of Alzheimer's Disease.

The journal of prevention of Alzheimer's disease..·2024
Same author

Greater White Matter Hyperintensity Volume Is Associated with the Number of Microhemorrhages in Preclinical Alzheimer's Disease.

The journal of prevention of Alzheimer's disease·2024
Same author

Reply.

AJNR. American journal of neuroradiology·2022
Same author

Trust as a key measure of quality and safety after the restriction of family contact in Canadian long-term care settings during the COVID-19 pandemic.

Health policy (Amsterdam, Netherlands)·2022
Same author

Amyloid-Related Imaging Abnormalities and Other MRI Findings in a Cognitively Unimpaired Population With and Without Cerebral Amyloid.

The journal of prevention of Alzheimer's disease·2022
Same author

Publisher Correction: Brain charts for the human lifespan.

Nature·2022

Area of Science:

  • Neuroimaging
  • Medical Physics
  • Biomedical Engineering

Background:

  • Head motion during functional MRI (fMRI) corrupts image time series, limiting clinical utility.
  • Accurate motion correction is crucial for reliable fMRI data analysis and interpretation.

Purpose of the Study:

  • To develop and validate a real-time prospective correction method for six degrees of rigid body motion in fMRI.
  • To assess the accuracy and efficacy of the proposed motion correction technique in both phantom and in vivo studies.

Main Methods:

  • Incorporation of an orbital navigator (ONAV) echo in sagittal, axial, and coronal planes into the fMRI pulse sequence.
  • Real-time measurement of rotation and translation, followed by prospective correction of image acquisition orientation.
  • Testing using a computerized motion phantom and in vivo fMRI experiments.

Related Experiment Videos

Main Results:

  • Achieved subdegree rotational and submillimeter translational accuracy over +/-8 degrees and +/-8 mm motion ranges.
  • Demonstrated successful correction of simultaneous through-plane and in-plane motion in vivo.
  • Showed improved detection of fMRI activation in the presence of head motion.

Conclusions:

  • The developed real-time prospective motion correction method enhances the clinical utility of fMRI.
  • This technique offers a promising solution for mitigating motion artifacts and improving the reliability of fMRI studies.