A k-Space Analysis of MR Tagging

William S. Kerwin, Jerry L. Prince

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


We present a k-space approximation that directly relates a pulse sequence to its residual pattern of z-directed magnetization Mz, in a manner akin to the k-space approximation for small tip-angle excitation. Our approximation is particularly useful for the analysis and design of tagging sequences, in which Mz is the important quantity - as opposed to the transverse magnetization components Mx and My considered in selective excitation. We demonstrate that our approximation provides new insights into tagging, can be used to design novel tag patterns, and, more generally, may be applied to selective presaturation sequences for purposes other than tagging.

Original languageEnglish (US)
Pages (from-to)313-322
Number of pages10
JournalJournal of Magnetic Resonance
Issue number2
StatePublished - Feb 2000


  • Presaturation
  • Pulse sequences
  • Small tip-angle approximation
  • Tagging
  • k space

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Nuclear and High Energy Physics
  • Condensed Matter Physics


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