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Abstract #1429

Assessing a radial multi-spin-echo sequence for robustness to motion artefacts in quantitative NMR imaging

Bertrand Coppa1,2, Benjamin Marty1,2, Pierre-Yves Baudin3, Noura Azzabou1,2, and Pierre G Carlier1,2

1NMR Laboratory, Institute of Myology, Paris, France, 2CEA, DRF, I²BM, MIRCen, Paris, France, 3Consultants for Research in Imaging and Spectroscopy, Tournai, Belgium

Fast parametric NMR imaging such as T2 and fat fraction mapping can be performed with a multi-spin-echo (MSE) sequence and an EPG-based model. Here, we compared a radial MSE encoding scheme to a standard Cartesian acquisition to monitor these two parameters in area subject to respiratory motion artifacts. Results show that the radial sequence was less affected from motion than the cartesian one and then improved the confidence of parameters estimation at these locations.

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