Endoscopic view of balloon catheter dilation of sinus ostia (balloon sinuplasty)Dewey A. Christmas, MD;Joseph P. Mirante, MD;Eiji Yanagisawa, MD Figure. A: This series of photographs details the steps of balloon sinuplasty. B: The sinus guide cannula is placed near the entrance of the frontal recess. C: The fluoroscope (F) is positioned to introduce the sinus guide wire and sinus balloon catheter into the sinus. D: The sinus guide wire (SGW) is introduced through the sinus guide cannula (SGC). E: Endoscopic view of the sinus guide wire entering the frontal sinus after it exits the sinus guide cannula. F: Fluoroscopy shows the sinus guide wire (SGW) and the sinus balloon catheter (SBC) in place. The radiopaque dots mark the proximal and distal ends of the balloon. The radiopaque bar marks the distal opening of the sinus guide cannula (SGC). G: The radiopaque balloon is inflated. H: The inflated balloon extends down into the frontal recess. I: After the balloon is deflated, the .../continued/
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