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RADIOLOGY WEBSITES : MRI Basics
Few Useful Websites on MRI Basics
1. Interactive course about MRI physicsa at http://www.e-mri.org/ is a web site putting the spotlight on the basic principles of MRI. It is fashioned by Denis Hoa, Antoine Micheau, Gerald Gahide at Campus Medica. Its content is interactive, with animations, experiments, and quizzes, that enable easy learning MRI physics! This site is free of charge and no registration is required.Educative sections dealing with Nuclear Magnetic Resonance,Basic principles, Magnetic field gradients, Fourier Transform 2D, Image Quality and Artifacts, and Image quality. Expected in 2006/2007, are sections planned for Fat signal suppression, 3D imaging,Flow imaging, Diffusion imaging, Functional MRI, Parallel imaging, MRI Contrast Agents and MR Spectroscopy
2. Basics of MRI at http://www.cis.rit.edu/htbooks/mri/inside.htm is an online textbook written by JP Hornak from the Rochester Institute of Technology. This textbook designed for the medical student and Radiology professionals, has 14 chapters covering the mathematics of MRI, spin physics, basic imaging techniques and hardware. Sections on image artifacts and advanced imaging techniques are also featured. Multimedia features like animated graphics richly supplement the text. Besides all this, a handy glossary and a index of symbols are also available.
3. MRI Physics put Simply at http://simplyphysics.com deals online with a basic account of the physics related to MR Imaging. What's more, this website has a Shockwave movie on MRI-Basics with a colorful, animated introduction to the basic principles of MRI. Also available is from this site is a guide to Cardiac MRI.
4. MRI Acronym Registration Service is available at http://mars.ummc.umaryland.edu/mars/Default.html. Acronyms have been the bane of MR. To mitigate this very problem, the MARS site (as it is popularly called) deals with the basic concepts and a brief description of a large number of acronyms currently used in MR. The acronyms are alphabetically arranged and a diagrammatic description is available for most MRI sequence acronym.
5. MRI Safety is available at http://www.mrisafety.com/. This site developed and maintained by F.G. Shellock provides up-to-date information on MRI safety-related topics. Impressively, latest information is provided for screening patients with implants, materials, and medical devices. A key feature of the site is the List, which is a searchable database that contains over 600 implants and other objects tested for MRI Safety. Moreover, there is a summary section, which is a presentation of over 100 peer-reviewed articles on MRI bioeffects and safety. There is also a CME section that provides articles and tests on MRI safety topics.
6. MRI Safety page at http://kanal.arad.upmc.edu/MR_Safety/ is a database of Safety related issues. The site crafted and fashioned by Emanuel Kanal, Director, Clinical and Educational MR at University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania has a searchable database by virtue of a a search engine as an added feature. Useful URLs within the site include http://radserv.arad.upmc.edu/MR_Safety/mrsearch.html and http://radserv.arad.upmc.edu/MR_Safety/Links.html
7. Papers and Information on Magnetic Resonance Imaging at http://porkpie.loni.ucla.edu/BMD_HTML/SharedCode/MRIPapersAndInfo.html#Anchor is a website dealing with important topics in MRI. This is a short list of reference papers at Readings in MRI section. Similarly, basic MR physics, basics of functional MR Imaging and determinants of MR image quality are the other material available. An article, "introduction to rapid MR imaging" reviews the techniques, applications of rapid MRI imaging. For the MRI diehards there is a technical (implying mathematical!) paper on motion compensation in MR imaging.
8. The Home of EPI and Slice Selection at http://www.magres.nottingham.ac.uk/ is the website focussing on the development of the techniques and hardware of MRI, particularly echo-planar imaging Interestingly, the group has been responsible for many developments in the history and evolution of MRI.
9. Adelaide MRI at http://www.users.on.net/vision/index.htm is an admirable collection of web base resources on MRI issues prepared by Greg Brown. The site is a comprehensive MRI portal catering to a variety of topics within the speciality of MRI, covering sections such as MRI professional societies, MR education resources, MR manufacturers pages, MRI papers, downloadable documents and MRI Safety links.
10. MRI Artifacts from http://www1.stpaulshosp.bc.ca/stpaulsstuff/MRartifacts.html is an illustrative presentation on artifacts encountered in MR Imaging. The compilation of MR Artefacts by Patola W & Coulter B from St. Paul's Hospital at Vancouver, portrays nearly 40 artifacts as images with descriptive text.
Endpiece
A stylish and concise download of Basic MRI physics is available from Siemens at http://www.med.siemens.com/med/e/gg/mr/mrpz/list.html. This is a useful item for students who are just beginning to grasp the fundamentals of MR physics. Similarly, Basic Magnetization Physics as a central theme is available in a text material at http://spinwarp.ucsd.edu/basicmr/BasicMRPhysics.html.
A Primer on Medical Device Interactions with MRI Systems is available at http://www.fda.gov/cdrh/ode/primerf6.html. An useful set of reviewed MRI Links are available as MRI Education : Welcome to Magnetic Resonance Imaging Education Resources on the Internet at http://www.mrieducation.com/web.htm.
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