Double contrast technique for MRI-guided vascular interventions

US7623903B2 · kind B2 · utility

Inventors

• Frank Wacker · Berlin, DE
• Jeffrey L. Duerk · Avon Lake, US
• Jonathan S. Lewin · Atlanta, US
• Robbert M. Maes · Schagerbrug, NL

Key dates

• Filing date: May 19, 2003
• Grant date: Nov 24, 2009
• Expiry date: Feb 26, 2026

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/286
• WIPO field: Measurement
• WIPO sector: Instruments

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.