Title:
デチューナブルコイル・アセンブリおよびMRI用RFコイルのデチューニング方法
Document Type and Number:
Japanese Patent JP2004528893
Kind Code:
A
Abstract:
A detunable coil assembly includes a main coil which resonates at a specified resonance frequency and a switchable detuning coil which, when switched on, becomes inductively coupled to the main coil and serves to detune it from its resonance frequency. The detuning coil and the main coil are electrically insulated from each other. The main coil may be of a multiply tuned kind and it may be detuned from more than one of its specified resonance frequencies at the same time by switching on the detuning coil.
Inventors:
Wong, Wai, Ha
Russ, Alan, Earl.
Russ, Alan, Earl.
Application Number:
JP2002579831A
Publication Date:
September 24, 2004
Filing Date:
March 13, 2002
Export Citation:
Assignee:
Varian Incorporated
International Classes:
G01R33/34; A61B5/055; G01R33/36; (IPC1-7): A61B5/055; G01R33/34; G01R33/36
Attorney, Agent or Firm:
Inaoka cultivation
Mio Kawasaki
Mio Kawasaki