ISMRM23 - MSK

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

MSK

ISMRT Education Session

ORGANIZERS: George Bouzalis, Huijun (Vicky) Liao, Kate Negus, James Whittaker

Saturday, 03 June 2023

Constitution Hall 106

13:45 - 15:15

Moderators: George Bouzalis & Jacob Cameron

Session Number: ISMRT-03

CE Credit

Session Number: ISMRT-03

Overview

Target Audience
Radiographers, MR technologists, radiologists, clinicians, and scientists interested in recent advances in MSK imaging.

Educational Objectives
As a result of attending this course, participants should be able to:
- Identify techniques for neurgraphy imaging;
- Explain the advances in whole lower limb Imaging; and
- Describe the advanced methods/technique for MSK imaging processing.

13:45		MR Neurography of Peripheral Nerves View Presentation Video Ben Kennedy Keywords: Neuro: Nerves, Musculoskeletal: Muscular, Image acquisition: Sequences Musculoskeletal nerve neuropathies, neuritis and palsies have often been diagnosed clinically and sent for MRI scans to investigate their appearance and if any other gross pathology abutting the nerves is a cause for the patient symptoms. For many years we have been able to visualize these nerves in their main branches, however the site of change can be extremely subtle in signal change and in most cases do not enhance after the administration of intravenous Gadolinium. Dedicated 3D Nerve sequences have changed diagnostic confidence in these cases and continued to evolve in sensitivity with improved sequence structure and parameters.
14:15		Imaging Fascia. Acquisition & Post Processing Including MASDEA (Multiplied, Added, Subtracted & Divided Echo Acquisition) View Presentation Video paul condron Keywords: Musculoskeletal: Tendons, Image acquisition: Sequences, Musculoskeletal: Skeletal The aim of this study was to provide high resolution and high contrast images of lower limb fascia. Both 3D radial ZTE and 3D cones dual echo (DE) UTE sequences identified and measured fascia in concurrence with current literature and autopsy measurements.We applied the theories of echo subtraction and division to amplify the contrast of short TE tissues (aponeuroses, fascia, ligaments) compared to longer TE tissues (fat and muscle). This method increased the contrast of fascia, addressed the issue of high fat signal, provided a T2* map of the lower limb and produced cortical bone images.
14:45		Quantitative MRI Joint Mapping View Presentation Video Hollis Potter Keywords: Musculoskeletal: Joints The utility of quantitative MR in detecting early matrix depletion in tissues pertinent to musculoskeletal application will be discussed, including hyaline cartilage, fibrocartilage, ligament, muscle and tendon. The clinical application of both traditional and newer techniques, including ultrashort TE and zero echo time (ZTE) imaging will be discussed, including the use of in silico modelling and load bearing joint assessment. Various limitations of particular pulse sequences will be discussed, as well as the use of deep learning/denoising techniques to reduce scan acquisition time and facilitate image segmentation and analysis.