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Hardware Considerations for Diffusion MRI 

Hardware Considerations for Diffusion MRI
Hardware Considerations for Diffusion MRI

Nirbhay N. Yadav

, Tim Stait-Gardner

, and William S. Price

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date: 27 January 2020

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.

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