Rapid cine MRI of the human heart using reconstruction by estimation of lines and inhibition of fold-in

Wolfgang G. Rehwald, Raymond J. Kim, Robert M. Judd

Research output: Contribution to journalArticle

Abstract

A fast imaging method is described that yields an approximately six-fold acquisition time reduction relative to conventional techniques. The method involves: 1) acquisition of every sixth k-space line; 2) shifting of acquired k-space lines between odd and even frames; and 3) a single-frame correction image. Reconstruction is achieved by temporal interpolation for k-space lines not acquired combined with subtraction of stationary fold-in artifacts. Seven patients with heart disease and one volunteer were evaluated. SNR was measured in myocardium and the ventricular cavity for both the conventional and new technique. The method is best suited for fast imaging of moving objects confined to a small region within a larger stationary object, such as the heart within the thoracic cavity. It can be implemented in cine and functional imaging sequences and, in principle, in perfusion sequences.

Original languageEnglish (US)
Pages (from-to)844-849
Number of pages6
JournalMagnetic resonance in medicine
Volume47
Issue number5
DOIs
StatePublished - 2002

Keywords

  • Cine MRI
  • Fast imaging
  • MRI
  • RELIF

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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