ISMRM23 - Fat & Water Imaging in MSK MRI

ISMRM & ISMRT Annual Meeting & Exhibition • 03-08 June 2023 • Toronto, ON, Canada

Fat & Water Imaging in MSK MRI

Sunrise Course

ORGANIZERS: Brian Hargreaves, Iman Khodarahmi

Tuesday, 06 June 2023

715A/B

07:00 - 08:00

Moderators: Kieren Hollingsworth & Dimitrios Karampinos

Skill Level: Intermediate to Advanced

Session Number: S-Tu-04

CME Credit

Session Number: S-Tu-04

Overview
The session reviews the technical and clinical aspects of fat suppression and water-fat quantification. The technical part briefly reviews the available fat suppression methods and discusses the basic and emerging methods of tissue fat-water quantification, focusing on whole-body imaging. The clinical part discusses the appropriate clinical application of the fat suppression techniques along with the clinical applications of fat-water quantification techniques.

Target Audience
MRI scientists interested in fat-water quantification and musculoskeletal radiologists.

Educational Objectives
As a result of attending this course, participants should be able to:
- Explain the technical aspects and pros and cons of different fat suppression techniques; - List various fat-water quantification methods and review their advantages and challenges; and - Identify the appropriate fat suppression and fat-water imaging techniques for various clinical applications.

07:00		Fat & Water Imaging: Technical Advances View Presentation Video Timothy Bray Keywords: Contrast mechanisms: Fat We will review the basic principles of fat quantification with MRI before discussing recent technical advances. Discussion of technical advances will focus on the use of chemical shift encoding within multiparametric acquisitions, providing fat-corrected measurements as well as offering fat as an additional contrast, and the opportunities offered by deep learning in the field of fat quantification. Specific methodological considerations and opportunities in musculoskeletal imaging will be discussed.
07:30		Fat & Water Imaging: Clinical Applications View Presentation Video Patrick Omoumi Keywords: Cross-organ: Tissue characterisation, Musculoskeletal: Skeletal, Image acquisition: Whole Body Fat and water are the most prominent constituents of the musculoskeletal system. While most pathological conditions are characterized by increased water content, fat is the main constituent of bone marrow, some tumors, and tissue degeneration. The Dixon technique, combined with spin-echo pulse sequences, is increasingly used in musculoskeletal protocols. Dixon sequences produce images specific to fat and allow for quantitative assessment of fat content. This imaging technique has proven useful in various clinical applications, including bone marrow imaging, degenerative spine, rheumatology, oncology, and whole-body imaging. This lecture will present the many clinical uses of fat-water imaging.