Abstract: An embodiment of the invention relates to a method for providing magnetic resonance images of a foetus or a mother carrying a foetus, the method comprising the steps of: applying an ultrasonic transceiver to the mother's body and inducing an ultrasonic signal into the mother's and foetus's body; receiving a returned ultrasonic signal and providing an output signal; processing the output signal in order to generate a trigger signal indicating the heart activity of the foetus; triggering a magnetic resonance imaging device taking the trigger signal into account; and generating magnetic resonance images of the foetus or the mother by using the triggered magnetic resonance imaging device.

Abstract: The invention relates to a bone cement mixture for producing an MRT-signaling bone cement and to an MRT-signaling bone cement produced from said mixture. The bone cement mixture of the invention includes: (a) at least one type of polymerizable organic monomers and optionally at least one already polymerized polymer component; (b) at least one MRT-signaling component with a magnetic susceptibility and a concentration in the cement mixture sufficient to generate a visible signal in at least one selected MRT sequence; and (c) at least 1 wt. % water, based on the total mass of the bone cement mixture. The bone cement mixture according to the invention is remarkable for its good signals in MRT in at least one measuring sequence, especially in the T1 sequence.