Ting Song1,2, Vincent B. Ho2,3,
Glenn Slavin1, Maureen N. Hood2,3, Jeffrey A. Stainsby4
1GE Healthcare Applied Science
Laboratory, Bethesda, MD, United States; 2Radiology, Uniformed
Services University of the Health Sciences, Bethesda, MD, United States; 3Radiology,
National Navy Medical Center, Bethesda, MD, United States; 4GE
Healthcare Applied Science Laboratory, Toronto, ON, Canada
A
cardiac T1 mapping sequence using a modified Look-Locker with saturation
recovery acquisition provides increased flexibility with respect to sampling
of the signal recovery curve over more traditional inversion recovery T1
mapping methods. In this work we explore different sampling patterns on
phantoms and human subjects. A sampling scheme requiring half the data
samples and thus half the breath hold time is compared to previous methods.
An SNR sensitivity analysis was performed to confirm the accuracy of the
reduced data sampling method at clinically relevant SNR and tissue T1 values.