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SINAPSE experts from around Scotland have developed ten online modules designed to explain medical imaging. They are freely available and are intended for non-specialists. **Unfortunately these do not currently work in browsers**

Edinburgh Imaging Academy at the University of Edinburgh offers the following online programmes through a virtual learning environment:

Neuroimaging for Research MSc/Dip/Cert

Imaging MSc/Dip/Cert

PET-MR Principles & Applications Cert

Applied Medical Image Analysis Cert

Online Short Courses

On the application of a non-CPMG single-shot fast spin-echo sequence to diffusion tensor MRI of the human brain

Author(s): M. E. Bastin, P. Le Roux

The strong sensitivity of Carr-Purcell-Meiboom-Gill (CPMG) fast spin-echo (FSE) sequences, such as rapid acquisition with relaxation enhancement (RARE), to the phase of the prepared transverse magnetization means that artifact-free single-shot diffusion-weighted images can currently only be obtained with a 30-50% reduction in the signal-to-noise ratio (SNR). However, this phase sensitivity and signal loss can be addressed in FSE sequences that use quadratic phase modulation of the radio-frequency (RF) refocusing pulses to generate a sustained train of stable echoes. Here the first application of such a non-CPMG single-shot FSE (ssFSE) sequence to diffusion tensor MR imaging (DT-MRI) of the human brain is described. This approach provides high SNR diffusion-weighted images that have little or no susceptibility to poor B-0 magnetic field homogeneity and the strong eddy currents typically present in DT-MRI experiments. (C) 2002 Wiley-Liss, Inc.

Full version: Available here

Click the link to go to an external website with the full version of the paper

ISBN: 0740-3194
Publication Year: 2002
Periodical: Magnetic Resonance in Medicine
Periodical Number: 1
Volume: 48
Pages: 6-14
Author Address: