A novel fast algorithm for parallel excitation: pulse design in MRI. Academic Article

abstract

• Spatially selective excitations with parallel transmitters have been regarded as a key in solving several high field MRI problems such as inhomogeneity correction and reducing specific absorption rate. However, three-dimensional pulse design in general is very time consuming which may prevent it from real-time applications. In this work, we explore the sparsity in the pulse design system equation. The size of system equation is reduced after a sparse transform and therefore design speed can be significantly increased. Computer simulations in several common scenarios show that the proposed design method can achieve up to an order of magnitude speedup than the conventional design methods while maintaining similar excitation accuracy.

authors

• Ji, Jim

published proceedings

• Annu Int Conf IEEE Eng Med Biol Soc

author list (cited authors)

• Feng, S., & Ji, J.

citation count

• 3

complete list of authors

• Feng, Shuo||Ji, Jim

publication date

• August 2012

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference  Journal

keywords

• Algorithms
• Magnetic Resonance Imaging
• Models, Theoretical

PubMed Central ID

• 23366088

Digital Object Identifier (DOI)

• 10.1109/EMBC.2012.6346127

start page

• 1102

end page

• 1105

volume

• 2012

URL

• http://dx.doi.org/10.1109/embc.2012.6346127