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Abstract #0089

The Age effect on Multi-parametric Magnetic Resonance Imaging changes in Multiple Sclerosis lesions

Elda Fischi-Gomez1,2, Mário João Fartaria2,3,4, Guillaume Bonnier1, and Cristina Granziera1,5

1Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States, 2Signal Processing Laboratory (LTS 5), École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland, 3Advanced Clinical Imaging Technology, Siemens Healthcare AG, Lausanne, Switzerland, 4Department of Radiology, Centre Hospitalier Universitaire Vaudois (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland, 5Neurology Department and Neuroimaging Laboratory, Basel University Hospital, Basel, Switzerland

We assessed the effect of age on the longitudinal evolution of intralesional neurite density and orientation dispersion indices, magnetization transfer ratio and T1 relaxometry in a cohort of relapsing-remitting MS patients. While we observed a decrease of neurite dispersion in lesions and stable neurite density, MTR and qT1, age did not seem to influence those longitudinal changes in MS lesions.

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