Abstract #2825

Contrast optimization using Fast Field Cycling techniques and fast low angle sequences

Nicolas Chanet¹ and Ludovic De Rochefort¹

¹IR4M (Imagerie par Résonance Magnétique Médicale et Multi-modalités), Univ. Paris-Sud, CNRS, UMR8081, Université Paris-Saclay, Orsay, France

Fast Field Cycling MRI offers the possibility to explore new contrasts generated from NMR dispersion (NMRD) profiles of tissue or contrast agents. Here, it is shown that dreMR contrast can be generated and optimized in fast low flip angle sequences extending the range of sequences that can be used with this new degree of freedom. The expression of a generalized Ernst angle maximizing signal with dreMR pulses is derived as well as the angle maximizing the dispersive contrast.

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