A general chemical shift decomposition method for hyperpolarized (13) C metabolite magnetic resonance imaging

Magn Reson Chem. 2016 Aug;54(8):665-73. doi: 10.1002/mrc.4435. Epub 2016 Apr 5.


Metabolic imaging with hyperpolarized carbon-13 allows sequential steps of metabolism to be detected in vivo. Potential applications in cancer, brain, muscular, myocardial, and hepatic metabolism suggest that clinical applications could be readily developed. A primary concern in imaging hyperpolarized nuclei is the irreversible decay of the enhanced magnetization back to thermal equilibrium. Multiple methods for rapid imaging of hyperpolarized substrates and their products have been proposed with a multi-point Dixon method distinguishing itself as a robust protocol for imaging [1-(13) C]pyruvate. We describe here a generalized chemical shift decomposition method that incorporates a single-shot spiral imaging sequence plus a spectroscopic sequence to retain as much spin polarization as possible while allowing detection of metabolites that have a wide range of chemical shift values. The new method is demonstrated for hyperpolarized [1-(13) C]pyruvate, [1-(13) C]acetoacetate, and [2-(13) C]dihydroxyacetone. Copyright © 2016 John Wiley & Sons, Ltd.

Keywords: 13C MR; chemical shift; decomposition; hyperpolarized; metabolite imaging.

MeSH terms

  • Acetoacetates / chemistry
  • Algorithms
  • Animals
  • Biotransformation
  • Carbon Isotopes
  • Dihydroxyacetone / chemistry
  • Image Processing, Computer-Assisted
  • Liver / chemistry
  • Liver / metabolism
  • Magnetic Resonance Imaging / methods*
  • Magnetic Resonance Spectroscopy
  • Metabolism*
  • Molecular Imaging / methods*
  • Phantoms, Imaging
  • Pyruvic Acid / chemistry
  • Rats
  • Thermodynamics


  • Acetoacetates
  • Carbon Isotopes
  • acetoacetic acid
  • Pyruvic Acid
  • Carbon-13
  • Dihydroxyacetone