title: Simultaneous PET and MR imaging.
abstract: We have developed a prototype PET detector which is compatible with a clinical MRI system to provide simultaneous PET and MR imaging. This single-slice PET system consists of 48 2 x 2 x 10 mm3 LSO crystals in a 38 mm diameter ring configuration that can be placed inside the receiver coil of the MRI system, coupled to three multi-channel photomultipliers housed outside the main magnetic field via 4 m long and 2 mm diameter optical fibres. The PET system exhibits 2 mm spatial resolution, 41% energy resolution at 511 keV and 20 ns timing resolution. Simultaneous PET and MR phantom images were successfully acquired.
authors.affiliation: Crump Institute for Biological Imaging, Department of Molecular and Medical Pharmacology, UCLA School of Medicine 90095, USA.
authors.forename: Y
authors.initials: Y
authors.lastname: Shao
authors.forename: S R
authors.initials: SR
authors.lastname: Cherry
authors.forename: K
authors.initials: K
authors.lastname: Farahani
authors.forename: K
authors.initials: K
authors.lastname: Meadors
authors.forename: S
authors.initials: S
authors.lastname: Siegel
authors.forename: R W
authors.initials: RW
authors.lastname: Silverman
authors.forename: P K
authors.initials: PK
authors.lastname: Marsden
mesh_terms: D004867:Equipment Design; D008279:Magnetic Resonance Imaging / Q000295:instrumentation* / Q000379:methods; D055095:Optics and Photonics; D019047:Phantoms, Imaging; D012680:Sensitivity and Specificity; D014055:Tomography, Emission-Computed / Q000295:instrumentation* / Q000379:methods