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Abstract #2947

The Effect of Heart Rate in Look-Locker Cardiac T1 Mapping

Glenn S. Slavin1, Ting Song1, Jeffrey A. Stainsby2

1Applied Science Laboratory, GE Healthcare, Bethesda, MD, United States; 2Applied Science Laboratory, GE Healthcare, Toronto, ON, Canada

Because inversion times in cardiac Look-Locker acquisitions are a function of heart rate, T1 measurements can be incorrect. Pulse sequence modifications to account for heart rate variability and its effect on the magnetization recovery curve can significantly improve T1 accuracy.