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Imaging Sci Dent. 2014 Dec;44(4):301-305. English. Original Article. https://doi.org/10.5624/isd.2014.44.4.301
Gang TI , Huh KH , Yi WJ , Lee SS , Heo MS , Choi SC .
Department of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea. raychoi@snu.ac.kr
Abstract

PURPOSE: The purpose of this study was to compare the accuracy of postoperative maxillary cyst (POMC) diagnosis by panoramic radiographs versus computed tomography (CT) and by oral and maxillofacial radiologists versus non-specialists. MATERIALS AND METHODS: Sixty-five maxillary sinuses with POMCs and 63 without any lesion were assessed using panoramic radiographs and CT images by five oral and maxillofacial radiologists and five non-specialists on a five-point scale. The areas under receiver operating characteristic (ROC) curves were analyzed to determine the differences in diagnostic accuracy between the two imaging modalities and between the two groups of observers. The intra-observer agreement was determined, too. RESULTS: The diagnostic accuracy of CT images was higher than that of panoramic radiographs in both groups of observers (p<0.05). The diagnostic accuracy of oral and maxillofacial radiologists for each method was higher than that of non-specialists (p<0.05). CONCLUSION: The use of CT improves the diagnosis of POMC, and radiological training and experience leads to more accurate evaluation.

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