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Adapted waveform encoding for magnetic resonance imaging

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2 Author(s)
Healy, D.M., Jr. ; Dept. of Math. & Comput. Sci., Dartmouth Coll., Hanover, NH, USA ; Weaver, J.B.

Magnetic resonance imaging is a very flexible modality; the images produced depend critically on the values of many parameters. We have presented adapted waveform encoding as a tool for the intelligent utilization of this flexibility in several specific imaging tasks. We have seen that waveform encoding can be implemented with existing scanners, and have analyzed performance with regard to several figures of merit. We noted several performance advantages which may be attributed to the edge localization properties of the wavelet bases that can be employed in this encoding technique. Finally, a particular instance of the technique was presented in which the encoding basis was chosen to reflect statistical regularities in a particular class of standard diagnostic studies. This basis captures most of the variability of the class in the first basis elements. This can be exploited for reduction of imaging times and for progressive imaging

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Engineering in Medicine and Biology Magazine, IEEE  (Volume:14 ,  Issue: 5 )