Antiparallel approach to endo AVF placement

Fluoroscopic image demonstrating the "antiparallel" approach of a 4 French EndoAVF system. The arterial catheter is positioned at the target zone from access in the ulnar artery and the venous catheter from above via the brachial vein. Also note the new configuration of the venous RF electrode in the 'saddle-shaped' arterial catheter backstop.