Influence of the media format on learning the physics of MRI

Magnetic resonance imaging is a rapidly developing imaging modality, both technologically and in its clinical applications. This development is due to the singularity of its foundations at the intersection of nuclear physics, mathematics, chemistry, biology and physiology. These technical characteristics differentiate it from other medical imaging methods. The possibilities are numerous: morphological imaging with high tissue contrast, functional imaging, motion, flow, perfusion or even chemical composition.

The physics of MRI, however, is a complex and difficult subject for radiology interns to grasp. Nevertheless, it’s essential to understand the physical principles of MRI in order to correctly interpret the studies. However, learning these technical bases is challenging, given the complex interplay of the mechanisms involved in MRI, which require specialized knowledge in various fields such as nuclear physics, mathematics, chemistry, biology and physiology.

An article focusing on educational resources in MRI physics, specifically the effect of media format was published recently. It highlights the most effective method for engaging learners and providing educational content in x-ray physics to enhance learning and understanding of these fundamental principles.

First step, a survey was carried out to evaluate the needs. Based on the results of the survey, three different types of support were identified:

1. text with images
2. text with animations
3. commented video

Visually appealing resources are popular

The results of the experimental study demonstrate a demand for visually appealing resources with simplified details and associated practice questions. Participants demonstrated significant learning improvement in all media formats, but felt that video was the most engaging media type.

e-MRI: an interactive course to understand and assimilate the technical bases of MRI

IMAIOS has designed an online course to explain in the simplest way possible how magnetic resonance imaging works. The objective of this educational media is to explain how an image is obtained, starting from quantum physics to advanced applications and the latest technological developments in MRI. 

This interactive course is intended for MRI professionals and students, physicians, techniciens or physicists and is organized in two parts: 

• The first part develops the different steps to obtain an MRI image
• The second part is devoted to advanced techniques

Choosing an electronic format, an internet site, enhances interactivity and leads to educational innovation, and a wider distribution of information that can be updated in real time.

e-MRI is designed to be approached step by step: the sixteen chapters follow each other and allows the student to acquire the fundamental notions on the functioning and physics of MRI in a progressive way. The most complex notions are identified and detailed. The illustrations, animations and interactive experiments have all been designed specifically for this medium, in the most didactic spirit possible.

Each chapter details the pedagogical objectives, the key points to remember as well as references to deepen and complement the concepts covered. 

To understand the phenomenon of magnetic resonance, the precession frequency is described, followed by an animation which allows to visualize the physical principle.

For complex concepts, the explanatory text is always accompanied by one or more animations in order to be better assimilated. Here for example, the excitation and relaxation phases are animated:

The e-MRI program has received scientific awards from the French Society of Radiology (Hermann Fischgold Award), the European Society of Radiology (Cum Laude Award, European Congress of Radiology) and the North American Society of Radiology (Certificate of Merit, Radiological Society of North America).