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Automatic orthogonality adjustment device for a quadrature surface coil for magnetic resonance imaging or spectroscopy

  • US 5,610,520 A
  • Filed: 02/24/1994
  • Issued: 03/11/1997
  • Est. Priority Date: 02/24/1994
  • Status: Expired due to Fees
First Claim
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1. A tunable magnetic resonance quadrature coil system, comprising:

  • a first coil;

    a second coil disposed with respect to said first coil such that a net magnetization vector of said second coil is at an approximate right angle to a net magnetization vector of said first coil;

    first and second variable capacitors contributing a first RF value connected in series with said first coil and a third variable capacitor contributing a second RF value connected in series with said second coil, said variable capacitors operable to change the RF values of said first and second coils; and

    a tuner communicating with the first, second and third variable capacitors for automatically tuning the first and second coils, and for automatically optimizing the magnetic field isolation of the first and second coils.

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