- 专利标题: MR SYSTEM WITH PARTIAL SHIELDING CABIN AND METHOD FOR OPERATION
-
申请号: US17690125申请日: 2022-03-09
-
公开(公告)号: US20220291310A1公开(公告)日: 2022-09-15
- 发明人: Jürgen Nistler , Rainer Schneider , Georg Seegerer , Stephan Kannengießer
- 申请人: Siemens Healthcare GmbH
- 申请人地址: DE Erlangen
- 专利权人: Siemens Healthcare GmbH
- 当前专利权人: Siemens Healthcare GmbH
- 当前专利权人地址: DE Erlangen
- 优先权: DE102021202235.9 20210309,DE102021202236.7 20210309
- 主分类号: G01R33/36
- IPC分类号: G01R33/36 ; G01R33/58 ; G01R33/421
摘要:
A magnetic resonance tomography (MRT) unit includes a field magnet, a transmitter, and a transmitting antenna. The MRT unit also has a transmission interference suppression facility with a transmission interference suppression controller, a plurality of sensors, and a transmission interference suppression antenna. The transmission interference suppression facility is configured to pick up, with the sensors, an excitation signal of the transmitter, determine, with the transmission interference suppression controller, a transmission interference suppression signal as a function of the excitation signal of the transmitter, and emit the signal via the transmission interference suppression antenna, so that at a predetermined location outside of the MRT unit, an electromagnetic alternating field of an excitation signal emitted by the transmitter via the transmitting antenna is attenuated. The sensors are arranged in a near field of the transmitting antenna, and the predetermined location of the attenuation is in a far field of the transmitting antenna.