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Abstract #3747

Cardiac Functional Assessment Without ECG Using Physiological Self-Navigation

Christoph Kolbitsch1, Claudia Prieto1, Tobias Schaeffter1

1Division of Imaging Sciences & Biomedical Engineering, King's College London, London, United Kingdom

ECG-gated cine MRI provides accurate functional information on the heart, however reliable ECG signals are not always available. We propose a novel framework to assess heart function based on physiological information obtained from MR images without an ECG. A Golden-Angle radial acquisition is used to obtain quantitative cardiac gating signals from blood volume changes in real-time images. This is used for reconstruction of retrospectively gated 2D multi-slice cine images. Finally, information on heart valve closure is used for slice synchronisation. Functional assessment of the left ventricle in five volunteers showed deviations less than 5% compared to standard ECG-gated Cartesian approach.

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Keywords

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