Hardware Considerations for Diffusion MRI

Nirbhay N. Yadav, Tim Stait-Gardner and William S. Price

in Diffusion MRI

Published on behalf of Oxford University Press

Published in print November 2010 | ISBN: 9780195369779
Published online September 2012 | e-ISBN: 9780199965144 | DOI:
Hardware Considerations for Diffusion MRI

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Much of the analysis from diffusion MRI experiments is conducted under the assumption that pulse sequence elements such as RF and gradient pulses are perfectly reproduced by MRI hardware. Furthermore, many deleterious effects such as eddy currents and mechanical vibration are ignored. This chapter begins with an outline of an ideal diffusion experiment which is followed by a discussion of how hardware limitations result in deviations from the idealized theory. The hardware related issues discussed include radio-frequency (RF) inhomogeneities, gradient system limitations, and eddy currents. Means for accounting for or eliminating these complications are also considered.

Chapter.  9240 words.  Illustrated.

Subjects: Neuroscientific Techniques

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