MAGNETIC RESONANCE IMAGING SYSTEM

The invention relates to a magnetic resonance imaging (MRI) system 1 comprising a magnet unit 4 that carries out an MRI sequence for generating MRI signals of a patient 2, excites a resonator device 8, 38 attached to the patient or to an object not being the patient and comprising a resonator element having piezoelectric properties and a coil element connected to the resonator element, and receives resonator device signals from the resonator device. A processor 5 reconstructs an MR image of the patient based on the MRI signals and determines a property of the patient or the object, to which the resonator device is attached, based on the received resonator device signals. This allows determining the property of the patient or the object by the MRI system without necessarily requiring, besides the resonator device, additional hardware, i.e. the property can be determined without requiring sophisticated additional hardware.