title: A phased array coil for human cardiac imaging.
abstract: A prototype cardiac phased array receiver coil was constructed that comprised a cylindrical array and a separate planar array. Both arrays had two coil loops with the same coil dimensions. Data acquisition with the cylindrical array placed on the human chest, and the planar array placed under the back, yielded an overall enhancement of the signal-to-noise ratio (SNR) over the entire heart by a factor of 1.1-2.85 over a commercially available flexible coil and a commercially available four-loop planar phased array coil. This improvement in SNR can be exploited in cardiac imaging to increase the spatial resolution and reduce the image acquisition time.
authors.affiliation: Department of Biomedical Engineering, John Hopkins University School of Medicine, Baltimore, MD 21205, USA.
authors.forename: C D
authors.initials: CD
authors.lastname: Constantinides
authors.forename: C R
authors.initials: CR
authors.lastname: Westgate
authors.forename: W G
authors.initials: WG
authors.lastname: O'Dell
authors.forename: E A
authors.initials: EA
authors.lastname: Zerhouni
authors.forename: E R
authors.initials: ER
authors.lastname: McVeigh
mesh_terms: D006321:Heart / Q000033:anatomy & histology*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000295:instrumentation* / Q000379:methods; D008955:Models, Cardiovascular; D008961:Models, Structural