title: Study of the magnetic interaction of a 4-coil array and copper shielding with a PET/MRI using the finite-element method.
abstract: The effect of the shielding in a PET-MRI system was numerically estimated by calculating the RF magnetic field, B1, produced by a coil array of 4 independent elements at the resonant frequency of 171 MHz (4T for protons). The array coil is located inside a μPET camera to simultaneously acquire PET and MR images of a rat brain. Profiles showed a good uniformity despite the shielding that is interacting between the coil array and the μPET camera. These limitations are currently being dealt with the fabrication of a birdcage coil design.
authors.affiliation: Laboratorio de Imagen y Resonancia Magnética, Universidad Autonoma Metropolitana Iztapalapa, Mexico, DF, 09340 Mexico. solisnajera@gmail.com
authors.forename: S E
authors.initials: SE
authors.lastname: Solis
authors.forename: A O
authors.initials: AO
authors.lastname: Rodriguez
authors.forename: D
authors.initials: D
authors.lastname: Tomasi
mesh_terms: D016477:Artifacts; D003198:Computer Simulation; D017076:Computer-Aided Design; D003300:Copper; D004867:Equipment Design; D019544:Equipment Failure Analysis; D020342:Finite Element Analysis; D007089:Image Enhancement / Q000295:instrumentation*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008280:Magnetics / Q000295:instrumentation*; D008962:Models, Theoretical; D049268:Positron-Emission Tomography / Q000295:instrumentation*; D011835:Radiation Protection / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
chemical_list: D003300:Copper