A comparison of cephalometric analysis using radiographs and craniofacial computed tomography in patients with obstructive sleep apnea syndrome: preliminary report

Olszewska, Ewa; Sieskiewicz, Andrzej; Rozycki, Janusz; Rogalewski, Marek; Tarasow, Eugeniusz; Rogowski, Marek; Kulikowska, Justyna
April 2009
European Archives of Oto-Rhino-Laryngology;Apr2009, Vol. 266 Issue 4, p535
Academic Journal
The aim of this study was to describe the similarities and differences as well as the convenience in using of cephalometric radiographs and craniofacial computed tomography in obstructive sleep apnea syndrome (OSAS) patients and to demonstrate the relationship between the severity of sleep-disordered breathing and severity of cephalometric abnormalities. A total of 28 randomly selected patients with snoring, and varying degrees of sleep-disordered breathing were included in this study. A control group included 22 patients. These patients had no snoring or clinical evidence of sleep-disordered breathing as evaluated by polysomnographic test. No patients had prior pharyngeal or maxillomandibular surgery. All patients were evaluated by otolaryngological examination and had polysomnography, cephalometric radiographs and craniofacial CT scans. In study group the evaluation between cephalometric analysis on radiographs and CT scans was made. The comparison between the control and the study group was also assessed as far as cephalometric data are concerned. The cephalometric parameters revealed major differences between controls and patients with OSAS regarding the size and position of soft palate and uvula, volume and position of tongue, hyoid position, mandibulo-maxillary protrusion and size of the pharyngeal airway space. OSAS is associated with statistically significant changes in cephalometric measurements. Lateral cephalometric analysis and craniofacial CT scans add further information to the anatomical assessment of patients with OSAS. We found craniofacial CT scan measurements to be easier and more accurate especially when applying to soft tissues. We believe that this method may also be useful for patient classification to surgical procedures.


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