比较观察者通过彩色编码减影X线片评估牙槽骨变化的可靠性。
Comparison of observer reliability in assessing alveolar bone changes from color-coded with subtraction radiographs.
作者信息
Shi X Q, Eklund I, Tronje G, Welander U, Stamatakis H C, Engström P E, Engström G N
机构信息
Department of Oral Radiology, Karolinska Institutet, Stockholm, Sweden.
出版信息
Dentomaxillofac Radiol. 1999 Jan;28(1):31-6. doi: 10.1038/sj.dmfr.4600401.
OBJECTIVES
To assess intra- and interobserver agreement on marginal changes in periodontal bone from color-coded compared with subtraction radiographs.
METHODS
Sequential radiographs from patients undergoing periodontal treatment were acquired using direct digital intra-oral radiography. Fifty-one pairs of color-coded and subtraction radiographs were produced and evaluated twice by six dentists for changes in marginal bone. Intra- and interobserver agreement were calculated.
RESULTS
Intra-observer agreement was significantly higher for the color-coded radiographs (P < 0.05). Interobserver agreement was significantly higher for color-coded radiographs at the second (P < 0.001) but not the first (P = 0.34) evaluation.
CONCLUSIONS
Color coding of radiographic differences by means of image addition may be a feasible alternative to the subtraction technique for evaluating periodontal bone changes.
目的
评估与减影X线片相比，彩色编码X线片在牙周骨边缘变化方面观察者内和观察者间的一致性。
方法
采用直接数字化口腔内X线摄影术获取接受牙周治疗患者的系列X线片。制作了51对彩色编码X线片和减影X线片，并由6名牙医对边缘骨变化进行了两次评估。计算观察者内和观察者间的一致性。
结果
彩色编码X线片的观察者内一致性显著更高（P < 0.05）。在第二次评估时，彩色编码X线片的观察者间一致性显著更高（P < 0.001），但在第一次评估时并非如此（P = 0.34）。
结论
通过图像叠加对X线片差异进行彩色编码可能是一种可行的替代减影技术的方法，用于评估牙周骨变化。
Zotero 插件