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Abstract #2249

Rapid Whole-Heart 3D Cine Using a Golden Ratio Stack of Spirals Trajectory

Javier Montalt-Tordera1, Grzegorz Kowalik1, Alexander Gotschy2,3, Jennifer Steeden1, and Vivek Muthurangu1
1Institute of Cardiovascular Science, UCL, London, United Kingdom, 2Great Ormond Street Hospital, London, United Kingdom, 3Institute for Biomedical Engineering, ETH Zurich, Zurich, Switzerland

A free-breathing three-dimensional cine imaging sequence was developed using a stack of spirals trajectory with golden angle rotations for efficient k-space sampling. Parallel imaging and compressed sensing were used in reconstruction for data acceleration. Respiratory motion artefact was avoided by binning k-space data into multiple respiratory phases. The proposed imaging protocol was tested on 10 patients and compared with a standard 2D breath-held short-axis stack. The proposed method was faster to acquire and generally able to provide correct quantitative measurements, but image quality needs to be improved and reconstruction time is too long for clinical practice.

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