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Abstract #0750

Hybrid US/MR System for Real-Time Compensation of Breathing Motion Artifacts in Cardiovascular MRI at 3 Tesla

Daniel Giese1, Andre Bongers2, Jrgen Jenne2, Matthias Gnther2, Bernd Jung1, Daniela Foell3, Maxim Zaitsev1, Jrgen Hennig1, Wim de Boer4, Michael Markl1

1Dept. of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, Freiburg, Germany; 2mediri GmbH, Heidelberg, Germany; 3Cardiology and Angiology, University Hospital Freiburg, Freiburg, Germany; 4Institut fr Experimentelle Kernphysik, Universitt Karlsruhe (TH), Karlsruhe, Germany

Real-time prospective motion compensation in cardiac MR at 3 Tesla using B-mode ultrasound imaging in combination with a tracking algorithm is presented. We present first results of a hybrid MR/US system with low-latency real-time feedback to the MR sequence at 3 Tesla. In-Vivo results using single heartbeat gating show no disadvantages compared to single-heartbeat MR navigators.