Rohlin M, Kullendorff B, Ahlqwist M, Stenström B
Department of Oral Radiology, Lund University, Sweden.
Dentomaxillofac Radiol. 1991 Aug;20(3):127-31. doi: 10.1259/dmfr.20.3.1807995.
Observer performance in the assessment of the periapical pathology from panoramic and periapical radiography was examined. Five endodontists, five general practitioners and five oral radiologists were asked to assess the periapical status of 117 teeth. The observers assessed the panoramic and periapical radiographs of the teeth, which were evenly distributed throughout the jaws with a 50% probability that either an osteolytic or sclerotic lesion was present. The results of the comparison between panoramic and periapical radiography were influenced by the selection of observers. When the oral radiologists acted as observers, the mean P(A) value for periapical radiography was higher than for panoramic radiography (P less than 0.001), resulting in periapical radiography presenting a higher overall diagnostic accuracy than panoramic radiography for all 15 observers (P less than 0.01). There was, however, no difference between panoramic and periapical radiography when the two groups of endodontists and general practitioners acted as observers. The comparison of the three groups of observers showed no difference between their diagnostic accuracy when assessing panoramic radiographs. With periapical radiography, the oral radiologists demonstrated a higher diagnostic accuracy than the endodontists (P less than 0.05). The observers in each group with the highest diagnostic accuracy also had the highest intra-observer agreement. The mean intra-observer agreement of the five general practitioners was higher than those of the other two groups of observers for panoramic radiography. For periapical radiography, the mean agreement rates of the groups were comparable.
研究了观察者通过全景片和根尖片评估根尖周病变的表现。邀请了5位牙髓病医生、5位全科医生和5位口腔放射科医生评估117颗牙齿的根尖周状况。观察者对这些牙齿的全景片和根尖片进行评估，这些牙齿均匀分布于上下颌，存在骨质溶解或硬化性病变的概率均为50%。全景片和根尖片比较的结果受观察者选择的影响。当口腔放射科医生作为观察者时，根尖片的平均P(A)值高于全景片（P<0.001），这使得对于所有15位观察者而言，根尖片的总体诊断准确性高于全景片（P<0.01）。然而，当两组牙髓病医生和全科医生作为观察者时，全景片和根尖片之间没有差异。三组观察者在评估全景片时，其诊断准确性没有差异。对于根尖片，口腔放射科医生的诊断准确性高于牙髓病医生（P<0.05）。每组中诊断准确性最高的观察者其观察者内一致性也最高。在全景片方面，5位全科医生的平均观察者内一致性高于其他两组观察者。对于根尖片，各组的平均一致性率相当。
