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Abstract #3392

Comparison of accuracy and reproducibility of MR Fingerprinting with conventional T1 and T2 mapping

Bernhard Strasser 1 , Wolfgang Bogner 1 , Peter Br 1 , Gilbert Hangel 1 , Elisabeth Springer 1 , Vlado Mlynarik 1 , Mark A Griswold 2,3 , Dan Ma 2 , Yun Jiang 2 , Mathias Nittka 4 , Haris Saybasili 4 , and Siegfried Trattnig 1

1 MRCE, Department of Biomedical Imaging and Image-guided Therapy, University of Vienna, Vienna, Vienna, Austria, 2 Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, United States, 3 Radiology, Case Western Reserve University, Cleveland, Ohio, United States, 4 Siemens Healthcare USA, Inc., Chicago, Illinois, United States

Previously, MR Fingerprinting (MRF) has been presented as a new method for simultaneous quantitative mapping of different physical MR properties. In this study, the T1 and T2 values of MRF were compared to conventional T1- and T2-mapping methods in the brains of five volunteers at 1.5T. Each volunteer was measured five times with a TrueFISP and a FISP based spiral MRF sequence, an MP2RAGE and a multi echo spin echo sequence for conventional T1 and T2 maps, respectively. Both MRF sequences showed a similar reproducibility but seemed to slightly underestimate the T2-values in comparison to the conventional sequences.

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