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Abstract #0467

Triple Echo Steady State (TESS) Relaxometry

Rahel Heule1, Carl Ganter2, Oliver Bieri1

1Department of Radiology, University of Basel Hospital, Basel, Switzerland; 2Department of Radiology, Klinikum rechts der Isar, Technische Universitt Mnchen, Munich, Germany

A variety of SSFP methods have been proposed so far and are known in the literature for fast relaxometry, but all of them are sensitive to B1, and show some more or less pronounced mixed T2/T1 sensitivity. In this work, a new rapid relaxometry method is introduced based on a triple echo steady state (TESS) approach. Relaxometry with TESS is not biased by T2/T1, is insensitive to B0 heterogeneities, and, surprisingly, for T2 not affected by B1 field errors. As a result, the new proposed method is of high interest for fast and reliable relaxometry in the clinical routine.