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Abstract #1181

Practical Requirements for Bi-exponential T2* fitting in Achilles tendon Measured by Variable Echo Time Sequence

Vladimir Juras 1,2 , Vladimir Mlynarik 1 , Pavol Szomolanyi 1,2 , Marek Chmelik 1 , and Siegfried Trattnig 1

1 High Field MR Centre, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria, 2 Department of Measurement Science, Slovak Academy of Sciences, Bratislava, Slovakia

The results of this study provide a guide how to perform the bi-exponential T2* fitting in Achilles tendon. Besides the usual conditions used in bi-exponential fitting (such as SNR and R2 threshold), other conditions such as limits for the ratio of T2*s and T2*l obtained by fitting should also be considered for calculating reasonable T2* values. The results of this study can be extended also to other tissues (menisci, ligaments, nerves) and is method independent (works with radial 2D and 3D-UTE, AWSOS, SPRITE).

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