ISMRM23 - Oncologic Imaging at Low Field

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

Oncologic Imaging at Low Field

Sunrise Course

ORGANIZERS: Jurgen Fütterer, Sonal Krishan

Wednesday, 07 June 2023

713A/B

07:00 - 08:00

Moderators: Adrienne Campbell-Washburn & Sonal Krishan

Skill Level: Intermediate to Advanced

Session Number: S-W-03

CME Credit

Session Number: S-W-03

Overview
This educational session will address the growing interest in low field MRI (<1.5T). The primary focus will be on low-field MRI for oncologic clinical applications.

Target Audience
Physicians and physicists interested in the unique opportunities that could be afforded by a low-field MRI system.

Educational Objectives
As a result of attending this course, participants should be able to:
- Describe new clinical applications enabled by low field;
- Describe the unique physical properties of lower fields; and
- Recognize the challenges of low-field MR imaging.

07:00		Unmet Needs in Abdominal Imaging View Presentation Video Barun Bagga Keywords: Physics & Engineering: Low-field MRI, Body: Body MR is used only as a problem-solving tool in the abdomen due to availability issues. Hardware and software advances have allowed us to rethink the required minimum field strength. Lower baseline and sitting costs make low-field scanners a viable option for abdominal imaging with longer T2/T2*, lesser SAR penalty, and homogeneous magnetic fields. Optimizing sequences using parallel imaging and radial acquisition, we demonstrated comparable quality scores between 0.55T and 1.5T scanners, with an acquisition time of 10 minutes or less for non-contrast abdominal MR. Future applications include prostate cancer screening and 0.55T-optimized deep-learning sequences for T2 and DWI images.
07:30		Lowering the Field and Raising the Bar: Unmet Needs in Lung Imaging View Presentation Video Lea Azour Keywords: Body: Lung We will review current work describing the applications of MRI in the lung, and our work investigating inter-modality concordance of low-field MRI with CT, and the inter-reader reliability, for evaluation of pulmonary parenchymal abnormalities. Secondarily, we will explore the functional imaging data that may be concurrently acquired. Future applications include use of low-field MRI for surveillance of chronic lung disease, derivation of respiratory pattern quantification, and regional and global ventilation perfusion quantification.