Improved regularized reconstruction for simultaneous multi-slice cardiac MRI T1 mapping
Ömer Burak Demirel (University of Minnesota Twin Cities)
Sebastian Weingärtner (TU Delft - ImPhys/Weingärtner group, University of Minnesota Twin Cities)
Steen Moeller (University of Minnesota Twin Cities)
Mehmet Akçakaya (University of Minnesota Twin Cities)
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Abstract
Myocardial T1 mapping is a quantitative MRI technique that has found great clinical utility in the detection of various heart disease. These acquisitions typically require three breath-holds, leading to long scan durations and patient discomfort. Simultaneous multi-slice (SMS) imaging has been shown to reduce the scan time of myocardial T1 mapping to a single breath-hold without sacrificing coverage, albeit at reduced precision. In this work, we propose a new reconstruction strategy for SMS imaging that combines the advantages of two different k-space interpolation strategies, while allowing for regularization, in order to improve the precision of accelerated myocardial T1 mapping.