title: Magnetic Resonance-Derived Improvements in PET Imaging.
abstract: Simultaneous PET-MR imaging improves deficiencies in PET images. The primary areas in which magnetic resonance (MR) has been applied to guide PET results are in correction for patient motion and in improving the effects of PET resolution and partial volume averaging. MR-guided motion correction of PET has been applied to respiratory, cardiac, and gross body movements and shown to improve lesion detectability and contrast. Partial volume correction or resolution improvement of PET governed by MR imaging anatomic information improves visualization of structures and quantitative accuracy. Evaluation in clinical applications is needed to determine their true impacts.
authors.affiliation: Joint Department of Biomedical Engineering, The University of North Carolina, Campus Box 7575, 152 MacNider Hall, Chapel Hill, NC 27599-7575, USA; Joint Department of Biomedical Engineering, North Carolina State University, Campus Box 7115, 911 Oval Drive, Raleigh, NC 27695-7115, USA. Electronic address: dslalush@ncsu.edu.
authors.forename: David S
authors.initials: DS
authors.lastname: Lalush
mesh_terms: D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D064847:Multimodal Imaging / Q000379:methods*; D049268:Positron-Emission Tomography / Q000379:methods*
keywords: MR-based PET reconstruction; PET motion correction; PET partial volume correction; PET-MR imaging