Rapid Variable Flip-angle T2 Quantification (RavFa-T2) of the Myocardium using Steady-state Free Precession: A Two-Center Study
Céline Marquet1,2,3, Jihye Jang1,2,4, Andrew J. Powell1,2, Brian Fonseca5,6, Lorna P. Browne5,6, and Mehdi H. Moghari5,6
1Harvard Medical School, Boston, MA, United States, 2Boston Children’s Hospital, Boston, MA, United States, 3Technical University of Munich, Munich, Germany, 4Philips Healthcare, Boston, MA, United States, 5University of Colorado, Aurora, CO, United States, 6Children’s Hospital Colorado, Aurora, CO, United States
We developed a novel method (RavFa-T2) for T2 quantification of myocardium using transient steady-state free precession (SSFP) with a variable flip angle scheme. RavFa-T2 was systematically analyzed based on a phantom and a two-center patient study. We show that RavFa-T2 yields accurate T2 estimates for the myocardium compared to the state-of-the-art method T2-Prep and reduces scan time to ≤4 seconds.
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