ISMRM21 - Motion Correction Theory & Applications

Motion Correction Theory & Applications

Sunrise Session

ORGANIZERS: Zhaolin Chen, Lijun Bao, Yunhong Shu, Hua Guo

Wednesday, 19 May 2021

Concurrent 7

15:00 - 16:00

Moderators: Lijun Bao

Skill Level: Basic to Advanced

Session Number: S-05a

Parent Session: Hot Topics in Image Acquisition

Session Number: S-05a

Overview
The objective of this course is to give a basic understanding of motion artefacts in MRI. The course will contain two lectures: the first lecture will provide an explanation on the source of motion artefacts and impact in image quality in MRI, and the second lecture will provide state-of-the-art solutions in the current clinical practice.

Target Audience
Scientists who are interested in motion artefact suppression and correction in MRI, and clinicians who are interested in learning about motion artefacts.

Educational Objectives
As a result of attending this course, participants should be able to:
- Explain the source of motion artefacts in MRI and theory behind it;
- Identify various motion correction techniques and their specific advantages and limitations; and
- Describe motion correction and suppression techniques in various clinical applications.

		Basic Theory of Motion Artifacts in MRI Watch the Video Andy Alexander Motion artifacts are one of the most common causes of poor imaging quality in MRI. These artifacts related to the coupling between the spatio-temporal properties of the motion and the trajectory and timing of k-space measurements. This presentation will review the underlying mechanisms of motion artifacts in MRI.
		Motion correction tools for fetal MRI Watch the Video Alena Uus In fetal MRI, motion correction is primarily applied retrospectively and is based on slice-to-volume registration (SVR) methods. This talk summaries the recent advances in SVR-based methods for fetal MRI along with the main challenges and the essential aspects of integration into research and clinical practice.