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Abstract #5591

Magnetic resonance elastography accuracy and precision in rat lung and liver at 1.5 T

Felicia Julea1, Hongchen Wang1, Jin Long Yue1, Tanguy Boucneau1, Claire Pellot-Barakat2, and Xavier Maître1

1Imagerie par Résonance Magnétique Médicale et Multi-Modalités, IR4M, CNRS, University Paris Sud 11, Orsay, France, 2Imagerie Moléculaire In Vivo, IMIV, Inserm, CEA, CNRS, University Paris-Sud 11, Orsay, France

Magnetic Resonance Elastography (MRE) is a non-invasive MRI based technique for quantitatively assessing the mechanical properties of tissues. It was formerly demonstrated in a simulation study that 6 to 9 voxels per wavelength is needed to properly quantify the mechanical properties of the tissue. This study investigates the precision and the accuracy of shear wave velocity in two organs at different mechanical excitation frequency and spatial resolution to validate in vivo the optimal conditions of ERM outcomes.

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