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

Motion compensated projection reconstruction.

T Schäffter1, V Rasche, I C Carlsen

  • 1Philips Research Laboratories, Division Technical Systems, Hamburg, Germany. T.Schaeffter@pfh.research.philips.com

Magnetic Resonance in Medicine
|May 20, 1999
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

How annulus defects can act as initiation sites for herniation.

European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·2022
Same author

Tiny golden angle stack-of-stars (tygaSoS) free-breathing functional lung imaging.

Magnetic resonance imaging·2021
Same author

Disc wall structural abnormalities can act as initiation sites for herniation.

European cells & materials·2020
Same author

Efficient 3D Low-Discrepancy k -Space Sampling Using Highly Adaptable Seiffert Spirals.

IEEE transactions on medical imaging·2018
Same author

Patient-specific registration of 3D CT angiography (CTA) with X-ray fluoroscopy for image fusion during transcatheter aortic valve implantation (TAVI) increases performance of the procedure.

Clinical research in cardiology : official journal of the German Cardiac Society·2018
Same author

Image-guidance for transcatheter aortic valve implantation (TAVI) and cerebral embolic protection.

International journal of cardiology·2017
Same journal

A Comparison of Tissue Property Values Estimated Using Conventional Cardiac MRF and MT-Cardiac MRF.

Magnetic resonance in medicine·2026
Same journal

Dependence of the Extra-Cellular Diffusion Coefficient on the Fractions of Neurites and Cell Bodies in Gray Matter.

Magnetic resonance in medicine·2026
Same journal

Triple-Pulse <sup>23</sup>Na MRI Sequence (TriNa) for Simultaneous Acquisition of Spin-Density-Weighted and Fluid-Attenuated Images.

Magnetic resonance in medicine·2026
Same journal

Evaluation of Phantom Doping Materials in Quantitative Susceptibility Mapping.

Magnetic resonance in medicine·2026
Same journal

Design of an 8-Channel Transmit 32-Channel Receive 11.7T Head Coil and Evaluation of SNR Gains.

Magnetic resonance in medicine·2026
Same journal

The Potential for Absolute Temperature Imaging Based on Brain Metabolites Using an FID-Shifting Approach in Gradient Echo Planar Spectroscopic Imaging (GREPSI).

Magnetic resonance in medicine·2026
See all related articles

Patient motion during magnetic resonance imaging (MRI) causes image artifacts. This study introduces a new MRI reconstruction technique to estimate and compensate for motion using only acquired data, significantly reducing blurring artifacts.

Area of Science:

  • Medical Imaging
  • Biomedical Engineering
  • Radiology

Background:

  • Real-time Magnetic Resonance Imaging (MRI) applications are advancing.
  • Patient motion during MRI scans remains a significant challenge, causing image artifacts despite faster acquisition techniques.

Purpose of the Study:

  • To examine the effects of patient motion on MRI images acquired using a radial trajectory.
  • To develop and validate a novel MRI reconstruction method for motion artifact reduction.

Main Methods:

  • Analysis of motion effects within a radial MRI acquisition scheme.
  • Development of a motion estimation technique solely from acquired projection data.
  • Integration of a motion compensation algorithm into the MRI reconstruction process.

Related Experiment Videos

Main Results:

  • Motion can be accurately estimated without supplementary measurements, using only the raw projection data.
  • The novel reconstruction technique significantly reduces blurring artifacts caused by patient motion.
  • The method demonstrates effectiveness in various motion scenarios, including kinetic joint studies.

Conclusions:

  • A new MRI reconstruction method effectively compensates for patient motion artifacts in radial acquisitions.
  • This technique allows for improved image quality in real-time MRI applications, particularly for dynamic studies.