PET/MR is a promising multimodality imaging approach. Attenuation is by far the largest correction required for quantitative PET imaging. MR-based attenuation correction have been extensively pursued, especially for brain imaging, in the past several years. In this article, we review atlas and direct imaging MR-based PET attenuation correction methods. The technical principles behind these methods are detailed and the advantages and disadvantages of these methods are discussed.

Original languageEnglish
Pages (from-to)245-255
Number of pages11
JournalMagnetic Resonance Imaging Clinics of North America
Issue number2
StatePublished - May 1 2017


  • Atlas
  • Attenuation correction
  • MR
  • PET
  • UTE
  • ZTE


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