In patients presenting cardiac electrical dysfunction, sub-millimetric resolution of CMR would help improving characterisation of the arrhytmogenic substrate. Here, a local coil was placed directly near the anatomic region to image to overpass the lack of sensitivity and selectivity of current conventionnal coils and reduce the voxel size. We implemented a motion compensation method that exploits the signal of micro-coils embodied on a catheter to retrospectively sort radial k-space data prior to ESPIRIT image reconstruction. Using this approach, we present high resolution (300µm), motion-resolved, image of the heart obtained in vivo in pig.
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