RESUMEN
OBJECTIVE: This study aimed to ascertain the safe range from foramen rotundum to the siphon of internal carotid artery using three-dimensional reconstruction technique. METHODS: We scanned skulls of 121 volunteers to get the final results with thin-section computed tomographic image. RESULTS: The distance of AC was measured as 13.22 (3.79) mm (range, 8.33-105.67 mm; 95% CI [confidence interval], 8.55-21.39 mm). The angle to the sagittal plane was measured as 33.54 (9.23) mm (range, 5.38-66.58; 95% CI, 30.88-34.20). The angle to the coronal plane was measured as 53.17 (10.48) mm (range, 5.60-75.02; 95% CI, 51.29-55.06). The angle to the horizontal plane was measured as 9.43 (12.91) mm (range, -28.44 to 82.22; 95% CI, 7.11-11.76). CONCLUSIONS: These above-mentioned results can help locate these structures to help in minimizing surgical trauma to the nerves and blood vessels of the operation through pterygopalatine fossa under nasoendoscope.