Attenuation Correction for Magnetic Resonance Coils in Combined PET/MR Imaging: A Review

PET Clin. 2016 Apr;11(2):151-60. doi: 10.1016/j.cpet.2015.10.004. Epub 2015 Nov 27.

Abstract

With the introduction of clinical PET/magnetic resonance (MR) systems, novel attenuation correction methods are needed, as there are no direct MR methods to measure the attenuation of the objects in the field of view (FOV). A unique challenge for PET/MR attenuation correction is that coils for MR data acquisition are located in the FOV of the PET camera and could induce significant quantitative errors. In this review, current methods and techniques to correct for the attenuation of a variety of coils are summarized and evaluated.

Keywords: Attenuation correction; Image analysis; MR imaging surface coils; PET/MR imaging; PET/MR reconstruction; Scatter correction.

Publication types

  • Research Support, N.I.H., Extramural
  • Review

MeSH terms

  • Artifacts
  • Computer-Aided Design
  • Equipment Design
  • Forecasting
  • Humans
  • Image Enhancement / methods
  • Magnetic Resonance Imaging / instrumentation*
  • Magnetic Resonance Imaging / methods
  • Magnetic Resonance Imaging / trends
  • Multimodal Imaging / instrumentation*
  • Multimodal Imaging / methods
  • Multimodal Imaging / trends
  • Phantoms, Imaging
  • Positron-Emission Tomography / instrumentation*
  • Positron-Emission Tomography / methods
  • Positron-Emission Tomography / trends
  • Scattering, Radiation