+REF+Radiology in India+Radiology World Over+ Radiology Links
Radiology Links

 
RADIOLOGY WEBSITES : MRI PHYSICS WEBSITES

Few Useful Websites on MRI Physics

1. K-Space Tool is an interactive educative feature that focuses on manipulation of K Space data before performing the 2DFT in order to create an image. Available at http://www.revisemri.com/tools/kspace/index.htm , there are graphical representations of Original k-space, and the effects on it by a series of manipulations: low and high pass filters, random and periodic motion artifacts, Random noise, Large and small RF spike near centre and periphery etc.

2. A Traveler's Guide to k-Space: In search of Non-Invasive Angiography
is an educative feature from the Radiology InfoNet Series course available at http://www.radinfonet.com/cme/mistretta/traveler.htm Authored by Charles A. Mistretta, and J.R. Cameron, from the Departments of Medical Physics and Radiology at University of Wisconsin, the educative material of this tricky topic has been written in a refreshing and innovative style.

3. Shared Resources and Tools of the UCLA Brain mapping
are available at http://airto.bmap.ucla.edu/BMCweb/SharedCode/. The UCLA Brain mapping center offers academic discourse and sharing of educative resources on MRI. The topics that are available presently are Papers on MRI, MR Image Quality, Introduction to Rapid MR Imaging, Functional MRI Basics. Breaking the Speed Limit in MRI is an informative and educative material authored by Cohen, M.S., Rosen, B.R., Brady, T.J.et al. The copyrighted material published originally in "MR", is available at http://airto.bmap.ucla.edu/BMCweb/SharedCode/SpeedLimit/SpeedLimit.html

4. Magnetic Resonance - Technology Information Project at http://www.mr-tip.com is a recently developed web portal focusing on the professional needs of the 'MRI Professional'. The Web portal known as MR-TIP.com covers comprehensively the basics to the latest. As an elegant Search engine and a broad database, it offers information on varied topics such as 'Artifacts', 'Contrast Agents', 'Pulse Sequence', 'Device Information', and 'Safety Guidance' and connects to MRI Specific links to more than 1600 publications and resource sites.

5. The M.A.R.S. Project represents MRI Acronym Registration Service. Created by Dr. Moriel NessAiver Assistant Professor of Radiology at the University of Maryland School of Medicine in Baltimore, Maryland, supported by Rao P. Gullapalli, PhD, Arjun V. Kaji, M.D and sponsored by Simply Physics, the MARS website available at http://mars.umaryland.edu/mars/Default.html has been made accessible once again on the Web from November 2003. This site deals with the multitude of MR acronyms available in a directory format at http://www.simplyphysics.com/MARS.HTM

6. The Basis of Contrast in Magnetic Resonance Imaging
is a mathematical treatise, focusing on signal-to-noise, resolution and contrast and how to generate images of the human body. Authored by E. Mark Haacke, Ph.D, from the MRI Institute for Biomedical Research at St. Louis, Missouri and Ramesh Venkatesan, D.Sc of Wipro GE Medical Systems, Bangalore India, this material is available at http://www.mrimaging.com/html/edu/overview.htm

7. Contrast Agents in Magnetic Resonance Imaging
is a concise educative material authored by Andrei Volkov. Available at http://www.cc.utah.edu/~av6a51/mri.htm, the material focuses on Methods of Image Enhancement, Contrast Agents for MRI Paramagnetic Contrast Agents, Gadolinium(III) complexes, Monocrystalline Iron Oxide Nanocompounds, Metalloporphyrines of Iron(III) and Manganese(III)

8. Animated MRI Physics Tutorials are available from Leeds Cardiac Magnetic Resonance a provider of Cardiac MRI services in northern England. The tutorials available at http://www.leedscmr.org/education/mriphysics/index.htm focuses on MRI physics and can be easily considered as a MRI physics revision site. The educative topics available at the moment are What is K-Space? , How K-Space Works, Receiver Bandwidth and Chemical Shift.

9. MRI Contrast Simulators is available from the UCLA Brain Mapping Centre which is fashioned by Mark S. Cohen, PhD http://airto.bmap.ucla.edu/BMCweb/SharedCode/ContrastSim.html#Anchor-SpinEcho-30991. A variety of simulators are available as Spin Echo, a Standalone Simulator, FLASH Simulation, and Contrast Simulations. To use one enters values for the T1 and T2 of the tissues of interest, as well as starting pulse sequence parameters, including TR, TE and Flip Angle

10. The Basics of MRI is an online textbook written by JP Hornak from Rochester Institute of Technology. The Chapter on Advanced Imaging Techniques at http://www.cis.rit.edu/htbooks/mri/chap-12/chap-12.htm covers the physical principles of 3-D Imaging, Flow Imaging, Diffusion Imaging, Chemical Shift Imaging, Echo Planar Imaging, NMR Spectroscopy, Magnetization Transfer Contrast etc.


Endpiece


FONAR MRI Glossary and ACR Glossary of MR Terms
are available from http://fonar.com/glossary.htm and http://www.acr.org/publications/active/mr_gloss.pdf respectively. An interesting piece on University of Nottingham's contributions to the glorious history of MRI is available at http://www.magres.nottingham.ac.uk/history/ .

Dr IK Indrajit MD DNB

Back to Reviewed Links















 





+ Radiology Links

- General Radiology Links
- Radiology Modality
- Organ Radiology