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. 1995 Oct;197(1):311-3.
doi: 10.1148/radiology.197.1.7568844.

Synchronization device for electrocardiography-gated echo-planar imaging

J Felblinger  1 , J F Debatin, C Boesch, R Gruetter, G C McKinnon
Affiliations

Synchronization device for electrocardiography-gated echo-planar imaging

J Felblinger et al. Radiology. 1995 Oct.

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.

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