Constraining the initial phase in water-fat separation

Mark Bydder, Takeshi Yokoo, Huanzhou Yu, Michael Carl, Scott B. Reeder, Claude B. Sirlin

Research output: Contribution to journalArticle

27 Scopus citations

Abstract

An algorithm is described for use in chemical shift-based water-fat separation to constrain the phase of both species to be equal at an echo time of zero. This constraint is physically reasonable since the initial phase should be a property of the excitation pulse and receiver coil only. The advantages of phase constrained water-fat separation, namely, improved noise performance and/or reduced data requirements (fewer echos), are demonstrated in simulations and experiments.

Original languageEnglish (US)
Pages (from-to)216-221
Number of pages6
JournalMagnetic Resonance Imaging
Volume29
Issue number2
DOIs
StatePublished - Feb 1 2011

Keywords

  • Chemical shift
  • Dixon
  • Phase
  • Water-fat separation

ASJC Scopus subject areas

  • Biophysics
  • Biomedical Engineering
  • Radiology Nuclear Medicine and imaging

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    Bydder, M., Yokoo, T., Yu, H., Carl, M., Reeder, S. B., & Sirlin, C. B. (2011). Constraining the initial phase in water-fat separation. Magnetic Resonance Imaging, 29(2), 216-221. https://doi.org/10.1016/j.mri.2010.08.011