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System and method for magnetic-resonance-guided electrophysiologic and ablation procedures

  • US 7,155,271 B2
  • Filed: 04/28/2003
  • Issued: 12/26/2006
  • Est. Priority Date: 11/04/1998
  • Status: Expired due to Term
First Claim
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1. A method for performing an electrophysiological procedure on a mammalian patient having a heart, comprising:

  • placing the patient such that the heart is in a main magnetic field of an MRI scanner;

    introducing an MR-compatible catheter into the heart;

    attenuating a frequency induced in the catheter by the MRI scanner, wherein the attenuated frequency corresponds to a radio frequency emitted by the scanner;

    acquiring a magnetic resonance image of the heart;

    using the magnetic resonance image to determine a location of said MR-compatible electrode catheter in the heart, andat substantially the same time that the image is acquired, using said MR-compatible electrode catheter to acquire electrical signals of the heart.

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