Abstract #3272

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

Lindsey A Crowe¹, Francesco Santini^2,3, Gibran Manasseh¹, Matthieu Destrade^1,4, Iris Friedli¹, Oliver Bieri^2,3, 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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