Patent ID: 8723519

Claim:
A method of performing nuclear magnetic resonance imaging of a body comprising at least two populations of nuclei characterized by different spin resonance frequencies, the method comprising the steps of: (a) immerging said body (B) in a static magnetic field (B 0 ) for aligning nuclear spins along a magnetization axis; (b) exposing it to a transverse radio-frequency pulsed field (B 1 ) for flipping said nuclear spins, said radio-frequency pulsed field comprising a train of elementary pulses, each having a constant frequency and amplitude, and a continuous linear phase; and (c) detecting a signal emitted by nuclear spins excited by said radio-frequency pulsed field; wherein said also comprises, prior to performing steps (a)-(c), computing a set of optimal parameters (N, τ i , φ i , ω i ) of said train of elementary pulses for minimizing the differences between the actual values of the spin-flip angles (FA j ) of nuclei belonging to each of said populations and predetermined target values thereof; said predetermined target values being different for nuclei belonging to different populations.