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Magn Reson Med. 2011 Apr;65(4):1062-74. doi: 10.1002/mrm.22696. Epub 2010 Nov 30.

"PINOT": time-resolved parallel magnetic resonance imaging with a reduced dynamic field of view.

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  • 1School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA.

Abstract

This article introduces a novel method named "Parallel Imaging and Noquist in Tandem" (PINOT) for accelerated image acquisition of cine cardiac magnetic resonance imaging. This method combines two prior information formalisms, the SPACE-RIP implementation of parallel imaging and the Noquist method for reduced-data image reconstruction with prior knowledge of static and dynamic regions in the field of view. The general theory is presented, and supported by results from experiments using time-resolved two-dimensional simulation data and retrospectively sub-sampled magnetic resonance imaging data with acceleration factors around 4. A signal-to-noise ratio analysis and a comparison study with TSENSE and k-t SENSE show that PINOT performs favorably in preserving edge detail, at a cost in signal-to-noise ratio and computational complexity.

Copyright © 2010 Wiley-Liss, Inc.

PMID:
21413070
[PubMed - indexed for MEDLINE]
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