1. Method for determination of spatial sensitivity profiles of RF transmit and/or receive coils in an examination volume of a magnetic resonance imaging device, comprising the following steps: a) excitation of nuclear magnetization within said examination volume by a sequence of RF pulses and switched magnetic field gradients, wherein said sequence comprises RF pulses with at least two different excitation flip angles; b) acquiring magnetic resonance signals from said examination volume; c) processing said magnetic resonance signals so as to form at least two magnetic resonance images each corresponding to one of said excitation flip angles; d) computing said spatial sensitivity profiles in the positions of the pixels or voxels of said magnetic resonance images based upon the dependence of the pixel or voxel values on the respective excitation flip angles.