Device and method for active local suppression of reception in magnetic resonance recordings
AssigneeSiemens Healthcare GmbH
InventorsDavid Grodzki, Rainer Schneider
Life of this patent
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Abstract
A magnetic resonance tomography scanner with a noise suppressor for suppressing interferences of reception and a method for operation of the magnetic resonance tomography scanner are provided. The noise suppressor receives an interference signal with a sensor, determines a noise suppression signal with a noise suppression controller, and sends the noise suppression signal using a controllable radio frequency amplifier via a transmit antenna, so that the interference signal on a receive antenna of the magnetic resonance tomography scanner is reduced.
Claims20
A magnetic resonance tomography scanner comprising:
- a noise suppressor configured to suppress receive interferences, wherein the noise suppressor comprises:
- a sensor;
- a noise suppression controller;
- a controllable radio frequency amplifier in signal connection with the noise suppression controller;
- and
- a transmit antenna;
- a receive antenna configured to receiver a magnetic resonance signal,
- wherein the noise suppressor is configured to:
- receive an interference signal with the sensor;
- determine a noises suppression signal with the noise suppression controller as a function of the interference signal;
- and
- emit the noises suppression signal via the controllable radio frequency amplifier and via the transmit antenna, and
- wherein the noise suppression controller is configured to determine the noise suppression signal so that the interference signal on the receive antenna is reduced.
A method for operating a magnetic resonance tomography scanner with a noise suppressor, wherein the noise suppressor includes a sensor, a noise suppression controller, a controllable radio frequency amplifier in signal connection with the noise suppression controller, and a transmit antenna, wherein the magnetic resonance tomography scanner includes a receive antenna for receiving a magnetic resonance signal, the method comprising:
- receiving an interference signal with the sensor using the noise suppressor;
- determining a noise suppression signal with the noise suppression controller as a function of the interference signal so that when the noise suppression signal is emitted, the interference signal on the receive antenna is reduced;
- and
- emitting the noise suppression signal with the controllable radio frequency amplifier via the transmit antenna.
Dependencies are inferred from the claim text.