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Abstract #2220

Quantitative Susceptibility Mapping at high and ultra-high field: a reproducibility study

Marta Lancione1,2, Michela Tosetti2,3, Paolo Cecchi4, Graziella Donatelli5, Mirco Cosottini2,4,5, and Mauro Costagli2,3

1IMT School for Advanced Studies, Lucca, Italy, 2IMAGO7 Research Center, Pisa, Italy, 3IRCCS Stella Maris, Pisa, Italy, 4Unit of Neuroradiology, AOUP, Pisa, Italy, 5University of Pisa, Pisa, Italy

The aim of this study is to assess the reproducibility of Quantitative Susceptibility Mapping (QSM), which is crucial to enable the application of this technique in clinical follow-up and multi-center studies. Five healthy subjects underwent multiple QSM acquisition sessions using two MRI systems at different field strength (3T and 7T). Both voxel-wise and automated atlas-based ROI analyses proved the goodness of intra-scanner repeatability and inter-scanner reproducibility, the latter being slightly weaker than the former.

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