Abstract #1566
In-vivo comparison of Active Tracking based cardiac triggering and ECG-triggering for cardiac MR-thermometry
Ronald Mooiweer1,2, Rainer Schneider3, Axel Joachim Krafft3, Katy Empanger4, Jason Stroup4, Alexander Paul Neofytou1, Rahul K Mukherjee1, Steven Williams1,5, Tom Lloyd4, Mark O'Neill1, Reza Razavi1, Tobias Schaeffter6, Radhouene Neji1,2, and Sébastien Roujol1
1School of Biomedical Engineering and Imaging Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom, 2MR Research Collaborations, Siemens Healthcare Limited, Frimley, United Kingdom, 3Siemens Healthcare GmbH, Erlangen, Germany, 4Imricor Medical Systems, Burnsville, MN, United States, 5University of Edinburgh, Edinburgh, United Kingdom, 6Physikalisch-Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany
Synopsis
Continuous AT was used for cardiac synchronization of MR-thermometry with on-line signal filtering, calibration, and triggering. Experiments in a porcine animal model, where AT-trig was compared to ECG triggering, showed that AT-trig could potentially serve as alternative cardiac triggering strategy in situations where ECG triggering is not effective.
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