Catheter exchange in tortuous vessels during selective cerebral angiography.
Inability to advance double-curved catheters beyond the origin of tortuous arch vessels in a common problem in femorocerebral angiography in the aged or hypertensive patient. The authors describe a simple technique involving the use of an exchange guide wire and straight catheter which has proved to be safe and successful in such circumstances.
D002404:Catheterization / Q000379:methods*; D002533:Cerebral Angiography / Q000379:methods*; D006801:Humans