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Abstract #2694

Effect of RF Pulse Duration on T2 Quantification Using Multi-Echo Spin Echo Sequences

Oliver Bieri1, Klaus Scheffler1

1Division of Radiological Physics, University of Basel Hospital, Basel, Switzerland

Besides spin density, relaxation times (T1,T2) are the most basic intrinsic tissue parameters in MR imaging. Typically, a Carr-Purcell-Meiboom-Gill (CPMG) pulse train is used as a gold standard for T2 quantification of tissues or pathologies of interest. It will be shown that finite RF effects may lead to a general overestimation of the true T2 value of tissues by 5-10% using multi-echo SE sequences.