Magnetic Resonance-based Motion Correction for Quantitative PET in Simultaneous PET-MR Imaging

PET Clin. 2017 Jul;12(3):321-327. doi: 10.1016/j.cpet.2017.02.004.

Abstract

Motion degrades image quality and quantitation of PET images, and is an obstacle to quantitative PET imaging. Simultaneous PET-MR offers a tool that can be used for correcting the motion in PET images by using anatomic information from MR imaging acquired concurrently. Motion correction can be performed by transforming a set of reconstructed PET images into the same frame or by incorporating the transformation into the system model and reconstructing the motion-corrected image. Several phantom and patient studies have validated that MR-based motion correction strategies have great promise for quantitative PET imaging in simultaneous PET-MR.

Keywords: Cardiac motion; MR-based motion correction; PET-MR; Respiratory motion.

Publication types

  • Review

MeSH terms

  • Humans
  • Magnetic Resonance Imaging / methods*
  • Magnetic Resonance Spectroscopy
  • Multimodal Imaging / methods*
  • Myocardial Contraction*
  • Organ Motion*
  • Positron-Emission Tomography / methods*
  • Radionuclide Imaging / methods
  • Radiopharmaceuticals
  • Tomography, X-Ray Computed

Substances

  • Radiopharmaceuticals