title: Modular design of receiver coil arrays.
abstract: We describe a modular and hence flexible system for connecting MR surface coils to create a receiver array. Up to 16 individual coils of different size and shape depending on the application are plugged into a connector box that houses the control electronics. Preamplification, matching and detuning circuitry are housed on a circuit board directly attached to each coil loop. Electrical adjustments for tuning or decoupling for each coil configuration are not needed thanks to effective preamplifier decoupling provided through a Pi matching network. Radio-frequency safety and electrically stable cabling are ensured by multiple radio-frequency traps. Array modules for 1.5 and 3 T have been simulated, constructed, tested, and used for imaging experiments.
authors.affiliation: Institute for Biomedical Engineering, ETH Zurich and University of Zurich, Zurich, Switzerland.
authors.forename: Nicola
authors.initials: N
authors.lastname: De Zanche
authors.forename: Jurek A
authors.initials: JA
authors.lastname: Massner
authors.forename: Christoph
authors.initials: C
authors.lastname: Leussler
authors.forename: Klaas P
authors.initials: KP
authors.lastname: Pruessmann
mesh_terms: D017076:Computer-Aided Design; D004581:Electronics / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008279:Magnetic Resonance Imaging / Q000295:instrumentation*; D008280:Magnetics / Q000295:instrumentation*; D014159:Transducers