Clinical Application of 64-slice Spiral CT in Diagnosis of Obstructive Sleep Apnea Hypopnea Syndrome

Objective:To explore the morphological changes of upper respiratory tract in patients with obstructive sleep apnea hypopnea syndrome (OSAHS) by using 64-slice spiral CT.Methods:Thirty-eight patients with OSAHS and 20 controls were scanned by 64-slice spiral CT.The lengths of soft palate and uvula,distance of pharynx and palatopharynx,and the minimum section of glossopharynx were measured.Results:The lengths of soft palate and the uvula were larger in OSAHS group than in the normal control group.Distance of pharynx and palatopharynx,and the minimum section of glossopharynx were less in OSAHS group than in the normal control group.The difference between the two groups was significant (independent t test,P0.05).Conclusion:Measurements of upper airway morphology with 64-slice spiral CT are important in investigating the anatomic changes of of OSAHS.