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Electrocardiogram acquisition during MR examinations for patient monitoring and sequence triggering

✍ Scribed by Jacques Felblinger; Christoph Lehmann; Chris Boesch

Book ID
102956615
Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
683 KB
Volume
32
Category
Article
ISSN
0740-3194

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✦ Synopsis

Abstract

We have developed a method for measuring the electrocardiogram (ECG) continuously during MR examinations. In contrast to ECG acquisition by wires, our new method is to amplify and convert the ECG into an optical signal directly above the patient's heart. The optical signal is transmitted out of the magnet bore by optical fiber. The small and fixed dimensions of the ECG amplifier avoid interactions with the MR system because of shorter electrical structures and smaller enclosed areas. Tests of the proposed device in a 1.5 Tesla MR system show that continuous and reliable ECG monitoring and sequence triggering are possible.

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