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 Concept Videos

Planar Rigid-Body Motion01:22

Planar Rigid-Body Motion

1.2K
Understanding the movement of a rigid body in planar motion involves recognizing that every particle within this body is traversing a path that maintains a consistent distance from a specific plane. This concept is fundamental in the study of physics and mechanical engineering, and it allows us to comprehend better how objects move in space.
Planar motion is typically divided into three distinct categories. The first is rectilinear translation, demonstrated by a subway train that moves along...
1.2K
¹H NMR of Labile Protons: Temporal Resolution01:10

¹H NMR of Labile Protons: Temporal Resolution

1.7K
Protons bonded to heteroatoms such as nitrogen and oxygen exhibit a range of chemical shift values. This is due to the varying degree of hydrogen bonding between the proton and the heteroatom in other molecules. The extent of hydrogen bonding affects the electron density around the proton, thereby giving different chemical shift values for the protons in the proton NMR spectrum.
The –OH proton in alcohols typically appears in the range of δ 2 to 5 ppm but can vary depending on the specific...
1.7K
Echo01:06

Echo

1.0K
The human ear cannot distinguish between two sources of sound if they happen to reach within a specific time interval, typically 0.1 seconds apart. More than this, and they are perceived as separate sources.
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case,...
1.0K
¹H NMR of Conformationally Flexible Molecules: Temporal Resolution00:52

¹H NMR of Conformationally Flexible Molecules: Temporal Resolution

1.3K
At room temperature, the chair conformer of cyclohexane undergoes rapid ring flipping between two equivalent chair conformers at a rate of approximately 105 times per second. These two chair conformers are in equilibrium. The rapid ring flipping results in the interconversion of the axial proton to an equatorial proton and an equatorial to the axial proton. Such interconversions are too rapid and cannot be detected on the NMR timescale. Hence, the NMR spectrometer cannot distinguish between the...
1.3K
Crystal Field Theory - Tetrahedral and Square Planar Complexes02:46

Crystal Field Theory - Tetrahedral and Square Planar Complexes

48.7K
Tetrahedral Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
48.7K
Light Acquisition02:16

Light Acquisition

9.6K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
9.6K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Improved multimodal prediction of progression from MCI to Alzheimer's disease combining genetics with quantitative brain MRI and cognitive measures.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2023
Same author

Childhood Disadvantage Moderates Late Midlife Default Mode Network Cortical Microstructure and Visual Memory Association.

The journals of gerontology. Series A, Biological sciences and medical sciences·2023
Same author

Heritability Estimation of Cognitive Phenotypes in the ABCD Study<sup>®</sup> Using Mixed Models.

Behavior genetics·2023
Same author

Task fMRI paradigms may capture more behaviorally relevant information than resting-state functional connectivity.

NeuroImage·2023
Same author

Identification of novel genomic risk loci shared between common epilepsies and psychiatric disorders.

Brain : a journal of neurology·2023
Same author

A Multicompartmental Diffusion Model for Improved Assessment of Whole-Body Diffusion-weighted Imaging Data and Evaluation of Prostate Cancer Bone Metastases.

Radiology. Imaging cancer·2023
Same journal

Editorial for "Association Between Deep Gray Matter Iron Deposition Dysregulation and Cognitive Performance in Type 2 Diabetes Mellitus Patients: A Quantitative Susceptibility Mapping Study".

Journal of magnetic resonance imaging : JMRI·2026
Same journal

Association Between Deep Gray Matter Iron Deposition Dysregulation and Cognitive Performance in Type 2 Diabetes Mellitus Patients: A Quantitative Susceptibility Mapping Study.

Journal of magnetic resonance imaging : JMRI·2026
Same journal

Association of Iron and Myelin Alterations in the Contralesional Dentate Nucleus and Thalamus With Functional Outcome in Acute Ischemic Stroke: A Susceptibility Source Separation Study.

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

Related Experiment Video

Updated: Feb 14, 2026

Author Spotlight: Optimized Lung MRI Protocol with Computationally Efficient Reconstruction Methods
05:07

Author Spotlight: Optimized Lung MRI Protocol with Computationally Efficient Reconstruction Methods

Published on: September 6, 2024

777

High temporal resolution motion estimation using a self-navigated simultaneous multi-slice echo planar imaging

Jose R Teruel1,2, Joshua M Kuperman1, Anders M Dale1,3

  • 1Department of Radiology, University of California San Diego, La Jolla, California, USA.

Journal of Magnetic Resonance Imaging : JMRI
|February 14, 2018
PubMed
Summary
This summary is machine-generated.

This study demonstrates that high-temporal resolution motion correction in resting-state fMRI (rs-fMRI) using simultaneous multi-slice (SMS) echo planar imaging (EPI) navigators significantly improves accuracy. This advanced technique reduces motion-induced artifacts, enhancing functional connectivity data quality.

Keywords:
functional MRImotion artifactmotion correctionrigid-boysimultaneous multi-slice

More Related Videos

Echo Particle Image Velocimetry
16:31

Echo Particle Image Velocimetry

Published on: December 27, 2012

15.1K
Human Fetal Blood Flow Quantification with Magnetic Resonance Imaging and Motion Compensation
06:56

Human Fetal Blood Flow Quantification with Magnetic Resonance Imaging and Motion Compensation

Published on: January 7, 2021

2.9K

Related Experiment Videos

Last Updated: Feb 14, 2026

Author Spotlight: Optimized Lung MRI Protocol with Computationally Efficient Reconstruction Methods
05:07

Author Spotlight: Optimized Lung MRI Protocol with Computationally Efficient Reconstruction Methods

Published on: September 6, 2024

777
Echo Particle Image Velocimetry
16:31

Echo Particle Image Velocimetry

Published on: December 27, 2012

15.1K
Human Fetal Blood Flow Quantification with Magnetic Resonance Imaging and Motion Compensation
06:56

Human Fetal Blood Flow Quantification with Magnetic Resonance Imaging and Motion Compensation

Published on: January 7, 2021

2.9K

Area of Science:

  • Neuroimaging
  • Medical Physics
  • Biomedical Engineering

Background:

  • Subject motion introduces spurious covariance in functional connectivity time-series.
  • These motion artifacts can lead to distance-dependent spurious correlations, compromising data integrity.

Purpose of the Study:

  • To assess the feasibility of using an extended Kalman filter (EKF) framework for high temporal resolution motion correction in rs-fMRI.
  • To leverage simultaneous multi-slice (SMS) echo planar imaging (EPI) shots as individual navigators for motion estimation.

Main Methods:

  • A prospective feasibility study was conducted with three human volunteers.
  • rs-fMRI data acquired using a 3T GE DISCOVERY MR750 scanner with a simultaneous multi-slice (SMS) factor of 6.
  • Motion estimation was performed using both conventional volume-wise registration and a novel high-temporal resolution approach, with Normalized Mean Squared Error (NMSE) used for comparison.

Main Results:

  • High-temporal motion estimation consistently outperformed volume-wise estimation across all volunteers.
  • NMSE values for high-temporal motion correction ranged from 0.060 to 0.150 for in-plane and through-plane rotations.
  • Volume-wise motion estimation resulted in significantly higher NMSE values, ranging from 0.080 to 0.464.

Conclusions:

  • Accurate, high-temporal resolution rigid-body motion estimates are achievable for rs-fMRI.
  • Utilizing simultaneous multi-slice EPI sub-TR shots provides an effective method for motion correction.
  • This approach enhances the reliability of functional connectivity analyses by mitigating motion-related artifacts.