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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.

Abstract

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.

摘要

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。

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