ISMRM Workshops: Learn, Share Research & Network

ISMRM Workshop on

Low Field MRI

17-18 March 2022

Online Virtual Workshop

Thank you for a great workshop!

Session recordings are available to attendees.

Organizers

Co-Chairs:
Adrienne Campbell-Washburn, Ph.D.
Orlando Simonetti, Ph.D.

Registration

Regististration is Closed

Supporters & Declarations

Magnetic Resonance in Medicine virtual issue on
Low-field MRI

For Attendees

Program: Scroll Down or Open Separately

Abstracts & Videos for Posters

Breakout Room Assignments

Guidelines for Presenters & Posters

Overview & Program

Workshop Overview

This workshop will address the growing interest in low field MRI (<1.5T). This workshop will be timely as more research is now underway at lower field (eg. Hyperfine system, ViewRay system, ramped-down clinical systems). The primary focus of this workshop will be on "high-performance" low-field MRI for specialized clinical applications, and the secondary focus will be on MR value/accessibility offered by low field.

Early in the development of MRI, there were debates on the “ideal” field strength, and the decision was dominated by the inherent SNR advantage of higher field. At that time, MRI engineering was immature, and by comparison, new low-field systems can benefit from modern magnet and gradient design, plus advanced image acquisition/reconstruction techniques, to recover SNR and imaging speed. Combining contemporary imaging techniques with unique clinical application opportunities and lower costs makes low field MRI attractive in clinical environments. This workshop will cover a breadth of topics in low field imaging, including:

  • Unique physical properties of low field;
  • Application of long readouts and novel k-space sampling to recover SNR;
  • Advanced image reconstructions and processing applied to low field;
  • Contrast agent performance;
  • Receiver array design for low field;
  • Flexibility in magnet design for low field;
  • MRI-guided interventions safely using commercial metallic tools;
  • MRI-guided radiotherapy procedures;
  • Imaging of patients with active and passive metallic implants;
  • Imaging near air-tissue interfaces (e.g., lung, airway, intestines, cranial sinuses);
  • Lower-cost system design for routine imaging; and
  • Point-of-care imaging.

The workshop will include invited talks, abstract presentations, a denoising challenge, and demonstrations of diagnostic and interventional MRI using high-performance low field MRI systems.

Target Audience:

This low field MRI workshop is targeted primarily at physicists and engineers interested in the unique opportunities that could be afforded by a high-performance low-field MRI system.

Educational Objectives:

Upon completion of this activity, participants should be able to:

  • Describe the unique physical properties of lower fields;
  • Describe new clinical applications enabled by low field: interventional MRI, implant imaging, and near-air applications;
  • Describe the potential of low field for lower-cost system design; and
  • Describe engineering challenges at low field.

Program

Videos and abstracts linked below are available to registered attendees only.

  • Username: Your Member ID Number
  • Password: Your last name; case-Sensitive, no spaces, no special characters or diacritical marks

Program   |   Abstracts for Posters

Day 1 - Thursday, 17 March 2022

Watch the recording of the day's sessions.

Session 1: Opening Plenary - Presented Live

Moderators: Adrienne Campbell-Washburn, Ph.D. & Orlando Simonetti, Ph.D.

The Evolution of Field Strength

Jürgen K. Hennig, Ph.D.
University Medical Center Freiburg
Freiburg, Germany

State of the Field(s)

Matthew S. Rosen, Ph.D.
A.A. Martinos Center for Biomedical Imaging
Charlestown, MA, USA

Improving MR Value in Low-Resource Settings

Johnes Obungoloch, Ph.D.
Mbarara University of Science & Technology
Mbarara, Uganda

Panel Discussion

Session 1 Speakers

Session 2: Dissemination of Low Field Technology

Moderators: Charlotte Sappo, B.Sc. & Nicole E. Seiberlich, Ph.D.

Pre-Recorded Presentations
Video recordings should be viewed before the meeting. They will not be played during the live meeting—speakers will be available for a brief recap and Q&A.

The Cost vs. Performance Trade-Off

Lawrence L. Wald, Ph.D.
A.A. Martinos Center for Biomedical Imaging
Charlestown, MA, USA

Autonomous Exams for Low-Cost Systems

Sairam Geethanath, Ph.D.
Columbia University
New York, NY, USA

Ethical, Legal & Social Implications (ELSI) of Portable MRI Research

Francis X. Shen, J.D., Ph.D.
University of Minnesota
Minneapolis, MN, USA

An FDA Perspective on Low Field MRI Systems

Jana G. Delfino, Ph.D.
Food & Drug Administration
Silver Spring, MD, USA

Panel Discussion

Session 2 Speakers

Session 3: Example Cases from Low Field

Moderators: W. Taylor Kimberly, M.D., Ph.D. & Ashkan A. Malayeri, M.D.

Abdominal MRI at 0.55T

Vikas Gulani, M.D., Ph.D.
University of Michigan
Ann Arbor, MI, USA

Neuroimaging at 0.055T

Ed X. Wu, Ph.D.
University of Hong Kong
Hong Kong, China

Cardiopulmonary MRI at 0.55T

Wiphada Patricia Bandettini, M.D.
National Institutes of Health
Bethesda, MD, USA

Radioablation at 0.35T

Nicolaus H. Andratschke, M.D.
Universitätsspital Zürich
Zürich, Switzerland

Panel Discussion

Session 3 Speakers

Break

Session 4: Acquisition Strategies

Moderators: Jürgen K. Hennig, Ph.D. & John Mugler, III, Ph.D.

Pre-Recorded Presentations
Video recordings should be viewed before the meeting. They will not be played during the live meeting—speakers will be available for a brief recap and Q&A.

Optimizing Data Sampling for Lower Field

Craig H. Meyer, Ph.D.
University of Virginia
Charlottesville, VA, USA

Sequences & RF Pulses in a World Without SAR Constraints

William A. Grissom, Ph.D.
Vanderbilt University
Nashville, TN, USA

Quantitative MRI for Lower Field

Mark A. Griswold, Ph.D.
Case Western Reserve University
Cleveland, OH, USA

Panel Discussion

Session 4 Speakers

Session 5: Low Field MRI Hardware

Moderators: Natalia Gudino, Ph.D. & Andrew Webb, Ph.D.

Pre-Recorded Presentations
Video recordings should be viewed before the meeting. They will not be played during the live meeting—speakers will be available for a brief recap and Q&A.

Designing Receiver Coils for Low Field

Charlotte Sappo, B.Sc.
Vanderbilt University
Nashville, TN, USA

Flexible Magnet Design at Low Field

Thomas O'Reilly, B.Sc.
Leiden University Medical Centre
Leiden, The Netherlands

OSI2 ONE: An Open-Source Low-Field MR Scanner

Lukas Winter, Ph.D.
Physikalisch Technische Bundesanstalt
Berlin, Germany

Hardware Requirements for Point-of-Care & Portable Imaging

Clarissa Z. Cooley, Ph.D.
Massachusetts General Hospital
Charlestown, MA, USA

Panel Discussion

Session 5 Speakers

Session 6: Abstract Power Pitches

Moderator: Rizwan Ahmad, Ph.D. & Mark A. Griswold, Ph.D.

Power Pitches (No CME Available)

Lung Nodule Imaging Using High-Performance 0.55T MRI
View Abstract

Bjorn Wieslander, M.D., Ph.D.
National Institutes of Health
Bethesda, MD, USA

Imaging Lung Water Using Low Field Strength 0.55T Ultrashort Echo Time MRI
View Abstract

Felicia Seemann, Ph.D.
National Institutes of Health
Bethesda, MD, USA

MRI of Acute Stroke: Equivalent Diagnostic Accuracy in 0.5T Versus 1.5T/3T
View Abstract

Kathryn Wagner, B.Mus.
Dalhousie University
Halifax, NS, Canada

Real-Time Water Fat Imaging at 0.55T with Spiral Out-In-Out-In Sampling
View Abstract

Ye Tian, Ph.D.
University of Southern California
Los Angeles, CA, USA

Point-of-Care Knee Imaging Using a 64mT Portable MRI Scanner: First Results
View Abstract

Jennifer M. Watchmaker, M.D., Ph.D.
Icahn School of Medicine at Mount Sinai
New York, NY, USA

Residential MRI: Development of a Mobile Anywhere-Everywhere MRI Lab
View Abstract

Sean Deoni, Ph.D.
Bill & Melinda Gates Foundation
Seattle, WA, USA

Image Quality Transfer for Low-Field MRI
View Abstract

Matteo Figini, Ph.D.
University College London
London, England, UK

EMI-Suppressed Gradient-Free Phase-Encoded Imaging at 47.5mT Using an Optimized SquareRoot Solenoid with Bucking Coil for Encoding & a Nested Saddle Coil for Imaging
View Abstract

Sai Abitha Srinivas, M.Sc.
Vanderbilt University
Nashville, TN, USA

Ramp-Down of a High-Performance 3T MRI: Experiences at 0.75T
View Abstract

Christian Guenthner, M.D.
ETH & University of Zürich
Zürich, Switzerland

Abstract Poster Presentations
     View breakout room assignments

Break

Session 7: Contrast at Lower Fields

Moderators: Peter J. Basser, Ph.D. & Karl F. Stupic, Ph.D.

Pre-Recorded Presentations
Video recordings should be viewed before the meeting. They will not be played during the live meeting—speakers will be available for a brief recap and Q&A.

Ultra-Low to Ultra-High: How Physical Properties & Contrast Mechanisms Vary

José  P. Marques, Ph.D.
Radboud University
Nijmegen, The Netherlands

Ex Vivo Hydrophysiology with Low Field NMR

Nathan Hu Williamson, Ph.D.
National Institutes of Health
Bethesda, MD, USA

Field-Cycling Merging with MRI: Exploring T1 at Low Magnetic Fields

Lionel M. Broche, Ph.D.
University of Aberdeen
Aberdeen, Scotland, UK

Panel Discussion

Session 7 Speakers

Session 8: Live Panel Discussion

Moderators: Krishna Nayak, Ph.D. & Matthew S. Rosen, Ph.D.

Balancing Cost/Performance/Application for Low Field MRI

Jürgen K. Hennig, Ph.D.
José  P. Marques, Ph.D.
Najat Salameh, Ph.D.
Daniel K. Sodickson, M.D., Ph.D.
Joel M. Stein, M.D., Ph.D.

Session 9: Live Scanning

Moderator: Adrienne Campbell-Washburn, Ph.D.

MRI-Guided Catheterization at 0.55T at NIH

Adjournment

Day 2 - Friday, 18 March 2022

Watch the recording of the day's sessions.

Session 10: Live Scanning

Moderator: Andrew Webb, Ph.D.

Low Field MRI System at Leiden

Session 11: Point-of-Care Imaging

Moderators: Clarissa Z. Cooley, Ph.D. & Daniel S. Reich, M.D., Ph.D.

Pre-Recorded Presentations
Video recordings should be viewed before the meeting. They will not be played during the live meeting—speakers will be available for a brief recap and Q&A.

Point-of-Care MRI in the NICU

Charles Dumoulin, Ph.D.
Cincinnati Children's Hospital Medical Center
Cincinnati, OH, USA

Portable Scanners from an International Perspective

Shaoying Huang, Ph.D.
Singapore University of Technology & Design
Singapore

Fast Acquisition Schemes for POC Imaging

Mathieu Sarracanie, Ph.D.
Universität Basel
Allschwil, Switzerland

Use of a 2.1MHz Scanner for Stroke Imaging in the ICU

Zheng Xu, Ph.D.
Chongqing University
Chongqing, China

Panel Discussion

Session 11 Speakers

Session 12: Abstract Power Pitches

Moderators: Kathryn Keenan, Ph.D. & Najat Salameh, Ph.D.

Power Pitches (No CME Available)

A Shielding-Free Ultra-Low-Field 0.055T Brain MRI Scanner
View Abstract

Alex Tze Lun Leong, Ph.D.
University of Hong Kong
Hong Kong, China

An Open-Source Low-Cost Operating Console for Accessible Low-Field MRI (MaRCoS)
View Abstract

Vlad Negnevitsky, Ph.D.
Oxford Ionics
Oxford, England, UK

An Adaptive Target Field Framework for Complete Low Field MRI System Design
View Abstract

Bart de Vos, M.Sc.
Leiden University Medical Center
Leiden, The Netherlands

Low Field T2-Weighted MR Imaging: Neonatal Sequence Optimisation at 64mT
View Abstract

Paul Cawley, M.B.B.S.
King's College London
London, England, UK

Low-Field MRI Denoising with a Deep Complex-Valued Convolutional Neural Network
View Abstract

Quan Dou, B.S.E.
University of Virginia
Charlottesville, VA, USA

Concomitant Field Compensation for 2D Spiral-Ring Turbo Spin-Echo Imaging at 0.55T & 1.5T
View Abstract

Zhixing Wang, M.Sc.
University of Virginia
Charlottesville, VA, USA

On the Feasibility of Hybrid-State-Based Quantitative MRI at 0.55T
View Abstract

Sebastian Flassbeck, Ph.D.
New York University
New York, NY, USA

Simultaneous Mapping of T1, T2, T2* & Fat Fraction at 0.55T with Rosette MRF
View Abstract

Evan Cummings, M.S.
University of Michigan
Ann Arbor, MI, USA

A Preliminary Investigation of Pilot Tone Signal & Cardiac Triggering at 0.55T MRI
View Abstract

Yue Pan, M.Sc.
Ohio State University
Columbus, OH, USA

Abstract Poster Presentations
     View breakout room assignments

Break

Session 13: Reconstruction & Image Processing

Moderators: Justin P. Haldar, Ph.D. & Hui Xue, Ph.D.

Pre-Recorded Presentations
Video recordings should be viewed before the meeting. They will not be played during the live meeting—speakers will be available for a brief recap and Q&A.

Compressed Sensing at Low Field

Rizwan Ahmad, Ph.D.
Ohio State University
Columbus, OH, USA

The Role of AI for Low-Field MRI

Patricia Johnson, Ph.D.
New York University
New York, NY, USA

The Concomitant Field

Matt A. Bernstein, Ph.D.
Mayo Clinic
Rochester, MN, USA

Imaging Implants: Artifacts

Brian A. Hargreaves, Ph.D.
Stanford University
Stanford, CA, USA

Panel Discussion

Session 13 Speakers

Session 14: Filling a Clinical Niche

Moderators: John Mugler, III, Ph.D. & Michael Salerno, M.D., Ph.D.

Pre-Recorded Presentations
Video recordings should be viewed before the meeting. They will not be played during the live meeting—speakers will be available for a brief recap and Q&A.

Can Low Field Disrupt the Clinical Status Quo?

Scott B. Reeder, M.D., Ph.D.
University of Wisconsin
Madison, WI, USA

Unmet Needs in Lung Imaging

Hersh Chandarana, M.D.
New York University Langone Medical Center
New York, NY, USA

The Current Clinical Status of MRI-Guided Radiotherapy

Yingli Yang, Ph.D.
University of California, Los Angeles
Los Angeles, CA, USA

Low Field MRI Safety Considerations for Implants & Devices

Frank G. Shellock, Ph.D., FACR, FISMRM, FACC
University of Southern California
Los Angeles, CA, USA

Panel Discussion

Session 14 Speakers

Session 15: Low Field MRI: Vendor Perspective

Moderators: Peng Hu, Ph.D. & Orlando Simonetti, Ph.D.

Pre-Recorded Presentations
Video recordings should be viewed before the meeting. They will not be played during the live meeting—speakers will be available for a brief recap and Q&A in breakout rooms.

Synaptive Medical, Inc.

Alex G. Panther, M.Sc.

Siemens Healthineers

Don Hardie

Cook Medical

Joshua F. Krieger, B.Sc.

Aspect Imaging

Wendy Slatery

Hyperfine

Recording only

Vendor breakout session
     View breakout room assignments

Break

Session 16: Closing Plenary

Moderators: James G. Pipe, Ph.D. & Daniel K. Sodickson, M.D., Ph.D.

Changing Clinical Routine with Low Field MRI

Kevin N. Sheth, M.D.
Yale University
New Haven, CT, USA

Future Opportunities for Low Field in the Context of Modern MRI

Adrienne Campbell-Washburn, Ph.D.
National Institutes of Health
Bethesda, MD, USA

Panel Discussion

Session 16 Speakers

Session 17: The Future of Low Field MRI

Moderators: Adrienne Campbell-Washburn, Ph.D. & Orlando Simonetti, Ph.D.

Panel Discussion/Open Mic

Kathryn Keenan, Ph.D.
Peng Hu, Ph.D.
John Mugler, III, Ph.D.
Krishna Nayak, Ph.D.
Andrew Webb, Ph.D.

Adjournment

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