Double contrast technique for MRI-guided vascular interventions

Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation

Reexamination Certificate

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C600S407000, C600S410000, C600S420000, C324S307000, C324S309000

Reexamination Certificate

active

07623903

ABSTRACT:
A method to detect the location of a catheter relative to a targeted location in a blood vessel is provided. One example method includes acquiring and displaying magnetic resonance (MR) images while a first MR contrast agent is present and while the operation of that first MR contrast agent is counter-acted by a second MR contrast agent. Both MR contrast agents may be introduced into a blood vessel by the catheter whose position is to be detected.

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