Standard ECG-gated phase-contrast (PC) and cine MRI methods are likely to produce non-diagnostic image quality and/or poor reproducibility in patients with atrial fibrillation due to irregular heart rhythm. One approach to address this problem is to develop highly-accelerated real-time PC and cine MRI acquisitions which are insensitive to arrhythmia. In response, we developed such methods using radial k-space sampling and compressed sensing. In this study, we sought to evaluate the inter-scan reproducibility of highly accelerated real-time PC and cine MRI methods for imaging blood flow and function in the left atrium.
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