Ludlow J B, Davies K L, Tyndall D A
Department of Diagnostic Sciences, University of North Carolina School of Dentistry, Chapel Hill 27599-7454, USA.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1995 Dec;80(6):735-43. doi: 10.1016/s1079-2104(05)80259-8.
This in vitro investigation compares biplanar (sagittal and coronal) temporomandibular joint images produced by multidirectional tomographic and panoramic techniques for diagnostic accuracy in the detection of simulated degenerative lesions. A series of dentin chips placed at four locations on the head of a temporomandibular joint condyle in a dried human skull were imaged with tomographic and panoramic modalities. Equal numbers of images with and without chips were scored by four examiners with the use of confidence levels for presence or absence of the lesion. To assess intra-examiner reliability, each examiner viewed one of the modalities twice. Responses were assessed by generating receiver operating characteristic curves and analyzing the area (A(z)) under the curves with analysis of variation methods. Biplanar tomography provided significantly more accurate assessment of condylar lesions than biplanar panoramic images (p = 0.007). No statistical difference by location (p = 0.592) was found. The effects of observer and repeated observation were marginally significant at p = 0.046 and p = 0.030, respectively.
这项体外研究比较了多向断层扫描和全景技术所产生的双平面（矢状面和冠状面）颞下颌关节图像在检测模拟退行性病变时的诊断准确性。在一个干燥的人类头骨的颞下颌关节髁突头部的四个位置放置一系列牙本质碎片，用断层扫描和全景成像方式进行成像。有和没有碎片的图像数量相等，由四名检查者使用病变存在或不存在的置信水平进行评分。为了评估检查者内部的可靠性，每位检查者对其中一种成像方式进行了两次观察。通过生成受试者工作特征曲线并使用方差分析方法分析曲线下面积（A(z)）来评估反应。与双平面全景图像相比，双平面断层扫描对髁突病变的评估明显更准确（p = 0.007）。未发现位置上的统计学差异（p = 0.592）。观察者和重复观察的影响分别在p = 0.046和p = 0.030时具有边缘显著性。
