Phase-sensitive cardiac tagging - REALTAG

J. Andrew Derbyshire, Smita Sampath, Elliot R. McVeigh

Research output: Contribution to journalArticlepeer-review


Fully inverting spins, instead of merely saturating them, provides superior contrast for tagging procedures. The resulting improvement in tag contrast-to-noise ratio (CNR) yields higher-precision tag detection. Also, thinner slices and hence reduced tag separations can be employed, providing displacement and strain measurements with better spatial resolution. Alternatively, the improved tag contrast can be used to obtain cine images covering a greater portion of the cardiac cycle. The use of standard magnitude reconstruction for images of these inversion tags causes rectification of the negative-valued signals from the tags, confounding the image interpretation. Therefore, a phase-sensitive reconstruction scheme of the inverted tags must be employed. Here we demonstrate the implementation of inverted tags with phase-sensitive reconstruction in a ramped-flip-angle, steady-state free precession (SSFP) sequence.

Original languageEnglish (US)
Pages (from-to)206-210
Number of pages5
JournalMagnetic Resonance in Medicine
Issue number1
StatePublished - Jul 2007
Externally publishedYes


  • Cardiac imaging
  • Contrast
  • Myocardial function
  • Myocardial tagging
  • Phase sensitive reconstruction

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology


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