"pINOT": Time-resolved parallel magnetic resonance imaging with a reduced dynamic field of view

Lei Hou Hamilton, Javier Acebron Fabregat, David Moratal, Senthil Ramamurthy, Stamatios Lerakis, W. James Parks, Denver Sallee, Marijn E. Brummer

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

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.

Original languageEnglish
Pages (from-to)1062-1074
Number of pages13
JournalMagnetic Resonance in Medicine
Volume65
Issue number4
DOIs
StatePublished - Apr 2011
Externally publishedYes

Keywords

  • Noquist
  • dynamic imaging
  • image reconstruction
  • magnetic resonance imaging
  • parallel imaging

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