Surface coil cardiac tagging and 31P spectroscopic localization with B1‐insensitive adiabatic pulses

Kristy Hendrich, Ya Xu, Seong‐Gi ‐G Kim, Kamil Ugurbil

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

A technique is presented for MRI tagging in the presence of inhomogeneous B1 fields. A rectangular tagging grid is produced with B1‐insensitive adiabatic pulses in a magnetization preparation period that precedes image acquisition. Phantom results demonstrate that the method is well‐suited to surface coil experiments. The technique is applied to a canine model of myocardial ischemia to track the spatially dependent wall motion of the left ventricle during the cardiac cycle. Transmural 31P spectra are acquired from the same double‐tuned surface coil, with tagging and spectroscopy performed for the first time, during normal, ischemic, and recovery conditions for the same animal.

Original languageEnglish (US)
Pages (from-to)541-545
Number of pages5
JournalMagnetic resonance in medicine
Volume31
Issue number5
DOIs
StatePublished - May 1994

Keywords

  • P spectroscopic localization
  • canine myocardial ischemia
  • cardiac tagging
  • surface coil

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