We examined undersampled real-time bSSFP reconstructions for fetal cardiac imaging. Two compressed sensing reconstructions, ICTGV and L plus S, were compared to k-t SENSE with respect to spatial and temporal blurring with and without fetal motion. Results with a digital fetal cardiac MRI phantom demonstrated ICTGV was able to capture expansion and contraction of the fetal heart even during periods of fetal motion while k-t SENSE and L plus S were not. Digital phantom results were confirmed on a 1.5T MRI scanner with implementation of ICTGV and acquisitions demonstrating pulsation of the fetal heart during periods of fetal motion.
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