Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Reexamination Certificate
2003-05-19
2009-11-24
Le, Long V (Department: 3768)
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
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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Duerk Jeffrey L.
Lewin Jonathan S.
Maes Robbert M.
Wacker Frank K.
Cattungal Sanjay
Kraguljac & Kalnay LLC
Le Long V
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