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Proceedings Paper

Fast wavelet-based magnetic resonance imaging
Author(s): Ahmed H. Tewfik; Hichem H. Garnaoui; Xiaoping Hu
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Paper Abstract

A novel fast magnetic resonance imaging (MRI) technique is proposed. The technique is based on a proper design of the excitation profile. In particular, the excitation profile is chosen to be highly regular along its boundaries. It is shown that the free induction decay (FID) signals that result from such excitations decay much faster than those produced by traditional MRI approaches as long as the underlying magnetization and a number of its derivatives are continuous. The proposed technique exploits this fact together with an exact model of the slow decaying components of the FID signal (those produced by discontinuities in the magnetization or its derivatives) to produce fast high quality reconstructions of the underlying magnetization. Experimental results obtained with a 4 Tesla whole body scanner are included to demonstrate the viability of this approach.

Paper Details

Date Published: 13 April 1993
PDF: 12 pages
Proc. SPIE 1838, 21st AIPR Workshop on Interdisciplinary Computer Vision: An Exploration of Diverse Applications, (13 April 1993); doi: 10.1117/12.142787
Show Author Affiliations
Ahmed H. Tewfik, Univ. of Minnesota (United States)
Hichem H. Garnaoui, Univ. of Minnesota (United States)
Xiaoping Hu, Univ. of Minnesota (United States)

Published in SPIE Proceedings Vol. 1838:
21st AIPR Workshop on Interdisciplinary Computer Vision: An Exploration of Diverse Applications
Jane Harmon, Editor(s)

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