Fast wavelet-based magnetic resonance imaging

Ahmed H. Tewfik; Hichem H. Garnaoui; Xiaoping Hu

doi:10.1117/12.142787

13 April 1993 Fast wavelet-based magnetic resonance imaging

Ahmed H. Tewfik, Hichem H. Garnaoui, Xiaoping Hu

Proceedings Volume 1838, 21st AIPR Workshop on Interdisciplinary Computer Vision: An Exploration of Diverse Applications; (1993) https://doi.org/10.1117/12.142787
Event: Applied Imaging Pattern Recognition, 1992, Washington, DC, United States

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.

Citation Download Citation

Ahmed H. Tewfik, Hichem H. Garnaoui, and Xiaoping Hu "Fast wavelet-based magnetic resonance imaging", Proc. SPIE 1838, 21st AIPR Workshop on Interdisciplinary Computer Vision: An Exploration of Diverse Applications, (13 April 1993); https://doi.org/10.1117/12.142787

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