发明名称 |
ARRANGEMENT TO DETUNE A RECEPTION ANTENNA IN A LOCAL COIL |
摘要 |
An arrangement to detune a reception antenna in a local coil of a magnetic resonance system, with at least one reception antenna that is fashioned as a loop antenna and that has at least one first capacitance. Radio-frequency signals of a magnetic resonance examination are received via the reception antenna. A switchable detuning circuit contains the first capacitance connected to an oscillating circuit and a first inductance. A reception device to receive a control signal is coupled with the oscillating circuit. The reception device switches the oscillating circuit into a high-resistance state given a received control signal so that a receipt of a radio-frequency signal via the reception antenna is prevented. The reception device is fashioned to receive a wirelessly transmitted radio-frequency control signal. The radio-frequency control signal has a frequency that lies outside of the bandwidth of the radio-frequency signal used for magnetic resonance examination.
|
申请公布号 |
US2009237081(A1) |
申请公布日期 |
2009.09.24 |
申请号 |
US20090404793 |
申请日期 |
2009.03.16 |
申请人 |
BIBER STEPHAN;GREIM HELMUT;CHRISTOPHER STAPF JOERG |
发明人 |
BIBER STEPHAN;GREIM HELMUT;CHRISTOPHER STAPF JOERG |
分类号 |
G01R33/36 |
主分类号 |
G01R33/36 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|