Abstract #0020

Overhauser Enhanced MR Elastography at Very Low Field

Najat Salameh¹,², Mathieu Sarracanie,²³, Brandon Dean Armstrong,²³, Arnaud Comment⁴, Matthew S. Rosen,²³

¹Institut de Physique des Systmes Biologiques, EPFL, Lausanne, Switzerland; ²Martinos Center for Biomedical Imaging, Charlestown, MA, United States; ³Department of Physics, Harvard University, Cambridge, MA, United States; ⁴Institut de Physique des Systmes Biologiques, Ecole Polytechnique Fdrale de Lausanne, Lausanne, Switzerland

MR Elastography (MRE) suffers from a major limitation: its low sensitivity due to the use of long TE's leading to long acquisition times. This drawback hinders its use in daily routine by radiologists. The aim of the present study was to show the feasibility of enhancing the signal via the Overhauser effect to shorten MRE acquisition times.