Low-field MR has recently attracted considerable attention because of reduced overall cost, lower field inhomogeneity, a lower specific absorption rate, and the potential for a more widespread global use. Owing to the simplicity and scalability of our recently developed free-running framework (FRF) for cardiovascular imaging, we here present the first results obtained with FRF at 0.55T. We demonstrate that FRF is scalable to this field strength by successfully reconstructing 5D cardiac- and respiratory motion-resolved whole heart images without the need of any gating or triggering devices, while reducing scan planning to a single mouse-click.
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