[The valuation of paranasal sinus coronal CT scanning in endoscopy sinus surgery].

We applied coronal CT scanning of paranasal sinus to 260 patients with chronic sinusitis before they were performed endoscopy sinus surgery. The correct diagnostic rate was 99.2% in our study. The positive findings of CT were compared with that from normal person. By analyzing, we consider that coronal CT scanning can clearly reveal various anatomic variation for all sinuses, also, it is valuable in evaluating the difficulties of endoscopic sinus surgery and preventing dangerous operative complications.