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Abstract #3272

Novel Ultrasound Real-time Feedback Slice Tracking with Spatially Resolved MR-compatible Ultrasound for Cardio-vascular MRI

Lindsey A Crowe1, Francesco Santini2,3, Gibran Manasseh1, Matthieu Destrade1,4, Iris Friedli1, Oliver Bieri2,3, Rares Salomir1, and Jean-Paul Vallée1

1Department of Radiology, Geneva University Hospitals, Geneva, Switzerland, 2Department of Radiology, Division of Radiological Physics, University of Basel Hospital, Basel, Switzerland, 3Department of Biomedical Engineering, University of Basel, Basel, Switzerland, 4HEI, école d’Yncréa Hauts-de-France, France

Spatially resolved MR-compatible ultrasound was used to detect a respiratory-mimicking motion for prospective correction of cine MR data acquisitions. A scaling factor relating the motion between the two modalities was derived in real-time and was chosen to compare motion-corrected MR images to a static phantom ‘breath-hold’ and an uncorrected cine image series.

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