Decoupling of multiple channels of an MRI RF coil array

Decoupling of multiple channels of an MRI RF coil array

  • CN 103,026,251 A
  • Filed: 04/26/2011
  • Published: 04/03/2013
  • Est. Priority Date: 05/27/2010
  • Status: Active Application
First Claim
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1. a radio frequency coil assemblies (18), it comprises:

  • A plurality of coil parts (18 1, 18 2..., 18 N), it is (14) middle emitting radio frequency signal to the inspection area, receives the magnetic resonance signal of inducting with excite magnetic resonances and/or from described inspection area;

    Mostly be most I=N (N-1)/2 decoupling elements (40 N, x) Decoupling network (40), each decoupling elements (40 N, x) to a pair of homologous lines coil element (18 n, 18 x) carry out the electrolysis coupling;

    Inductive coupling loop (51 n, 100 n), it is with described homologous lines coil element (18 n) be inductively coupled to corresponding Decoupling network port (64 n);

    And Transmission line (52 n), it is with each inductive coupling loop (51 n) be electrically connected to and be positioned at the described corresponding Decoupling network port (64 that described Decoupling network (40) is located n), described transmission line has the electrical distance of k λ

    /2, wherein k=0,1,2,3 ..., and λ

    is the wavelength at the magnetic resonance signal of described transmission line internal motivation and/or reception.

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