Vasconcelos Karla de Faria, Rovaris Karla, Nascimento Eduarda Helena Leandro, Oliveira Matheus Lima, Távora Débora de Melo, Bóscolo Frab Norberto
a Department of Oral Diagnosis, Division of Oral Radiology , Piracicaba Dental School, University of Campinas , Piracicaba , Brazil.
Acta Odontol Scand. 2017 Nov;75(8):573-576. doi: 10.1080/00016357.2017.1359331. Epub 2017 Jul 28.
To evaluate the performance of conventional radiography and photostimulable phosphor (PSP) plate in the detection of simulated internal root resorption (IRR) lesions in early stages.
Twenty single-rooted teeth were X-rayed before and after having a simulated IRR early lesion. Three imaging systems were used: Kodak InSight dental film and two PSPs digital systems, Digora Optime and VistaScan. The digital images were displayed on a 20.1″ LCD monitor using the native software of each system, and the conventional radiographs were evaluated on a masked light box. Two radiologists were asked to indicate the presence or absence of IRR and, after two weeks, all images were re-evaluated. Cohen's kappa coefficient was calculated to assess intra- and interobserver agreement. The three imaging systems were compared using the Kruskal-Wallis test.
For interexaminer agreement, overall kappa values were 0.70, 0.65 and 0.70 for conventional film, Digora Optima and VistaScan, respectively. Both the conventional and digital radiography presented low sensitivity, specificity, accuracy, positive and negative predictive values with no significant difference between imaging systems (p = .0725).
The performance of conventional and PSP was similar in the detection of simulated IRR lesions in early stages with low accuracy.
评估传统X线摄影和光激励荧光板（PSP）在早期检测模拟牙根内吸收（IRR）病变中的性能。
对20颗单根牙在模拟早期IRR病变前后进行X线检查。使用了三种成像系统：柯达InSight牙科胶片以及两种PSP数字系统，Digora Optime和VistaScan。数字图像使用每个系统的原生软件在20.1英寸液晶显示器上显示，传统X线片在暗盒上进行评估。两名放射科医生被要求指出是否存在IRR，两周后，对所有图像进行重新评估。计算Cohen's kappa系数以评估观察者内和观察者间的一致性。使用Kruskal-Wallis检验对三种成像系统进行比较。
对于检查者间的一致性，传统胶片、Digora Optima和VistaScan的总体kappa值分别为0.70、0.65和0.70。传统X线摄影和数字X线摄影的敏感性、特异性、准确性、阳性和阴性预测值均较低，成像系统之间无显著差异（p = 0.0725）。
在早期检测模拟IRR病变方面，传统X线摄影和PSP的性能相似，但准确性较低。
