Meeting Banner
Abstract #0494

Doppler Ultrasound Triggering for Cardiac Magnetic Resonance Imaging at 7 Tesla

Fabian Kording1, Christian Ruprecht1, Bjoern Schoennagel1, Mathias Kladeck Kladeck1, Jin Yamamura1, Gerhard Adam1, Juliane Goebel2,3, Kai Nassenstein2, Stefan Maderwald3, Harald Quick3,4, and Oliver Kraff3

1Department of Diagnostic and Interventional Radiology, University Medical Center Hamburg, Hamburg, Germany, 2Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital, University Duisburg-Essen, Essen, Germany, 3Erwin L. Hahn Institute for Magnetic Resonance Imaging, University Duisburg-Essen, Essen, Germany, 4High Field and Hybrid MR Imaging, University Hospital, University Duisburg-Essen, Essen, Germany, Essen, Germany

Cardiac synchronization for magnetic resonance imaging at ultra-high-field MRI remains a challenge as disturbances in the inherent electrical measurement of the ECG increase with field strength. An ultrasound transducer and transmission line was developed and the feasibility of Doppler Ultrasound as an alternative method for cardiac synchronization was evaluated in terms of safety concerns, signal and image quality. The transmission line and transducer did not disturb the transmit RF field or image homogeneity and were approved for RF safety. Doppler Ultrasound was successfully applied for cardiac synchronization without signal disturbances and represents a promising alternative for ultra-high field CMR.

This abstract and the presentation materials are available to members only; a login is required.

Join Here