The present invention describes a magnetic resonance imaging method
wherein spatially resolved frequency sensitive image data are collected
by means of free precession sequences employing very small radio
frequency (RF) excitation pulses per unit time which result in highly
frequency selective steady-state signals dominated by linear properties
of the system, for which the superposition principle holds. By
appropriate linear combination of steady state signals of N different
frequencies, N resonance lines can be acquired simultaneously. This
method allows spectroscopic recordings with very low RF power deposition
which renders the method suitable for applications at high static
magnetic field strengths.