27th ISMRM Annual Meeting • 11-16 May 2019 • Montréal, QC, Canada

Educational Course
MR Physics & Techniques for Clinicians (4)

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MR Physics & Techniques for Clinicians (4)
Weekday Course

ORGANIZERS: Bernd Jung, Marcus Alley, Dong-Hyun Kim

Thursday, 16 May 2019
Room 710A  16:00 - 18:00 Moderators:  Marcus Alley, Do-sik hwang

Skill Level: Basic to Intermediate

Session Number: TH-01

This two-hour course will be a basic and comprehensive review of MRI physics and techniques. The presentations will be non-mathematical and suitable for clinicians and physicists new to the field. The course will cover the basic principles of MR physics (signal generation, encoding, and relaxation) and image quality.

Target Audience
This course is primarily designed for the clinician who will benefit from an understanding of the "hows" and "whys" of MR imaging. While it requires no prior experience with MR, those with some familiarity and experience will also benefit. Those interested may include: radiologists and clinicians relatively new to MR imaging (including residents and fellows), experienced radiologists and clinicians wanting a refresher course in MR physics, and physicists and engineers wanting an introduction to the field.

Educational Objectives
As a result of attending this course, participants should be able to:
- Define and describe the fundamental principles of MR imaging including the definition of spin magnetization;
- Explain the Larmor relationship, relaxation phenomena, and the process of using the spin magnetization to produce an image; and
- Describe how changing acquisition parameters impacts on the image quality and understand the parameter relationships.


  Contrast Agents
Val Runge
The gadolinium chelates (the GBCAs) are critical to disease diagnosis by MR, indeed to clinical medicine worldwide, and have proven to be overall a very safe class of contrast media. This review focuses on the current knowledge regarding accumulation of gadolinium in the brain (dentate nucleus and other structures) and body, with clinical recommendations based on that and other safety data, including in depth discussion of the European Medicines Agency (EMA) ruling. Also, it is important to recognize that the discussion of dechelation and long term deposition in the brain and body of insoluble Gd and Gd bound to macromolecules (not as the injected chelate) involves only the linear Gd chelates.

  High Field Imaging
Harald Quick
With more than 80 installed MRI systems worldwide operating at a magnetic field strength of 7 Tesla or higher, ultra-high field (UHF) MRI has been established as a platform for clinically oriented research in recent years. Profound technical and methodological developments have helped to overcome the inherent physical challenges of UHF radiofrequency (RF) signal homogenization in the human body. The ongoing development of dedicated transmit/receive RF coil arrays was pivotal in realizing UHF body MRI, beyond mere brain imaging applications. Against this backdrop, UHF MRI recently has demonstrated capabilities and potentials for clinical diagnostics in a variety of studies.

  Artifacts to Artefacts
Vikas Gulani
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The International Society for Magnetic Resonance in Medicine is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians.