만성 부비동염의 진단에서 단순 X선촬영상과 전산화 단층촬영상의 비교검토

Plain paranasal sinus X-ray (PNS X-ray) technique is known to be an inexpensive but not an effective way of diagnosing chronic paranasal sinusitis. On the other hand, paranasal sinus CT (PNS CT) has been a generally used technique for an effective diagnosis and treatment of chronic paranasal sinusitis. We decided to study the effectiveness of plain PNS X-ray technique in diagnosis of chronic paranasal sinusitis compared to PNS CT. We selected 44 patients (88 nasal cavities, 70 cases with polyps and 18 cases without polyps) for research. Both plain PNS X-ray and CT images were taken within a week’s period and each image was examined by three otolaryngelogist^ independently. The results diagnosed by plain X-ray images were compared to those diagnosed by CT images to see how accurate plain X-ray technique is. We also checked the sensitivity and specificity of plain X-ray technique. The sensitivity of plain X-ray image was 94.0% in the maxillary sinus and the specificity was 89.1 % in the frontal sinus. Matching rate was high in maxillary sinus, frontal sinus, ethmoid sinus, sphenoid sinus in decreasing order. We could not find any significant difference between the groups with polyps and without polyps. We concluded that PNS CT is necessary for preoperative evaluation of patients with chronic paranasal sinusitis.