Myocardial mapping of T1 and T2 with 3D-QALAS - precision of independent and dependent scans in healthy subjects
Sofia Kvernby, Marcel Warntjes, Jan E Engvall, Carl Johan Carlhall, Tino Ebbers
Abstract
Recently, a new method for simultaneous myocardial T1- and T2 relaxation times mapping of the whole left ventricular myocardium in a single breath hold, 3D-QALAS, has been proposed and verified in-vitro . The clinical utility of quantitative methods is dependent on a good precision to allow differentiation between healthy and pathological myocardium. The aim of this study was to investigate the in-vivo precision of 3D-QALAS in healthy volunteers. Ten healthy subjects underwent four scan blocks during the same day on a Philips Ingenia 3T system. Each subject was removed from the bore and reposi
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