Hanson, Lars G.

Online Research Database In Technology

                       General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.  • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal   If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.     Downloaded from orbit.dtu.dk on: Apr 10, 2018Day 1 of MRI and NMR education: Interactive visualization of MR basicsHanson, Lars G.Publication date:2017Document VersionPeer reviewed versionLink back to DTU OrbitCitation (APA):Hanson, L. G. (2017). Day 1 of MRI and NMR education: Interactive visualization of MR basics. Poster sessionpresented at  ISMRM 25th Annual Meeting & Exhibition, Honolulu, United States.7/2/2018 indexsmart.mirasmart.com/ISMRM2017/PDFfiles/3818.htmlhttp://indexsmart.mirasmart.com/ISMRM2017/PDFfiles/3818.html 1/13818Day 1 of MRI and NMR education: Interactive visualization of MR basicsLars G. HansonCenter for Magnetic Resonance, DTU Elektro, Technical University of Denmark, Kgs. Lyngby, Denmark, Danish Research Centre for MR, Centre for Functionaland Diagnostic Imaging and Research, Copenhagen University Hospital, Hvidovre, DenmarkSynopsisIt is challenging to teach and learn the very basics of Magnetic Resonance as used in NMR and MRI. A simple approach is demonstrated that providesaccurate understanding of basic MR phenomena, also for non-technical students. An interactive free simulation tool is used that invites studentexploration of Compass and Nuclear MR via browser or app. This CompassMR simulator o ers you a unique opportunity to  nally make anybodyintuitively understand MR in minutes, even your parents who always wanted to know what you are doing.PurposeStudents of MR are provided with a basic understanding, and MR educators with tools for teaching it.Outline of ContentAfter introducing nuclear magnetization and polarization, compass needle dynamics are taken as a starting point for introducing MR, excitation,detection, FIDs, FFT and relaxation. The di erence to nuclear MR follows from spin, that results in precession and modi ed on- and o -resonancedynamics that are also explored.SummaryFreely available material for introducing MR is demonstrated. It includes the CompassMR web-based simulator [1] that runs on most smart devices, andprovides users with a good MR understanding in minutes, and educators with a valuable tool. It o ers a good starting point for use of the more advancedBloch Simulator [2]. References to typically unnecessary, and oft-misinterpreted quantum mechanics, are avoided [3,4].AcknowledgementsNo acknowledgement found.References[1] The CompassMR simulator and app, HTML5/JavaScript-based, http://drcmr.dk/CompassMR [2] The Bloch Simulator for continued MR education, Flash/ActionScript-based, http://drcmr.dk/bloch [3] Hanson, LG. Is Quantum Mechanics necessary for understanding Magnetic Resonance? Concepts in Magn Reson, 32A(5):329, 2008 [4] Hanson LG. The Ups and Downs of Classical and Quantum Formulations of MR, in „Anthropic Awareness: The Human Aspects of Scienti c Thinking inNMR...”, edited by Csaba Szantay Jr., Elsevier 2015.1,21 2FiguresThe CompassMR web page and app, http://drcmr.dk/CompassMR  Proc. Intl. Soc. Mag. Reson. Med. 25 (2017)3818

Day 1 of MRI and NMR education: Interactive visualization of MR basics

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Day 1 of MRI and NMR education: Interactive visualization of MR basics

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