title: Synchronization device for electrocardiography-gated echo-planar imaging.
abstract: An electrocardiography (ECG) synchronization technique allowed triggering of 1.5-T echo-planar acquisitions of the heart, with high gradient slew rates. In 51 volunteers (37 men and 14 women, aged 21-48 years), the ECG signal was amplified, filtered, and converted into an optical signal directly above the heart and was transmitted optically outside the bore. Reliable and artifact-free ECG tracings were obtained in all cases, regardless of the gradient switching speed.
authors.affiliation: Magnetic Resonance (MR) Center, University and Inselspital, Berne, Switzerland.
authors.forename: J
authors.initials: J
authors.lastname: Felblinger
authors.forename: J F
authors.initials: JF
authors.lastname: Debatin
authors.forename: C
authors.initials: C
authors.lastname: Boesch
authors.forename: R
authors.initials: R
authors.lastname: Gruetter
authors.forename: G C
authors.initials: GC
authors.lastname: McKinnon
mesh_terms: D000328:Adult; D004562:Electrocardiography / Q000295:instrumentation*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000295:instrumentation*; D008297:Male; D008875:Middle Aged