摘要:
The invention relates to a device to produce mechanical oscillations in a research object using magnetic resonance elastography (MRE) with a membrane that can be set into periodic motion (312) and a transmission element (4, 400) for the transmission of periodic motion of the membrane (312) onto the research object (1), whereby the membrane (312) is connected to the transmission element (4, 400) by means of a mounting medium (311, 320, 321, 322) in such a way that periodic motion of the membrane is transmitted over the mounting medium (311, 320, 321, 322) to the transmission element (4, 400). A second aspect relates to the invention of a device with a step motor to generate periodic motion and a transmission element for the transmission of the periodic motion of the step motor to the research object in order to generate mechanical oscillation therein. The invention also relates to a procedure for the magnetic resonant elastographic determination of biomechanical characteristics of tissue with steps: c) excitation of mechanical oscillations using a frequency of fv in which n is the tissue to be researched; d) proof of mechanical oscillation within the tissue using magnetic resonance, whereby a periodic magnetic field with a repeat time of TR≦1/fv is used on the tissue.
摘要:
A device and method for producing mechanical oscillations in a research object using magnetic resonance elastography (MRE) with a membrane that can be set into periodic motion and a transmission element for the transmission of periodic motion of the membrane onto the research object, whereby the membrane is connected to the transmission element by means of a mounting medium in such a way that periodic motion of the membrane is transmitted over the mounting medium to the transmission element.
摘要:
The invention relates to an arrangement (10) for examination and/or treatment of a human or animal body having a shielded room (20), a magnetic resonance imaging device (MRI) which is arranged within the shielded room, and at least one communication device (30), which is arranged within the shielded room and is suitable for receiving a radio signal for transmission of a voice signal, and has at least one electro-acoustic transducer (40, 41) which is suitable for conversion of an audio signal, which has been transmitted by the radio signal (Fin), to an acoustic signal (EAA). The invention provides that at least one antenna, which is connected to at least one further communication device, is arranged in the shielded room and is connected by radio to the at least one communication device (30) which is arranged within the shielded room.
摘要:
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.