A comparative evaluation of the diagnostic efficacy of film and digital sensors for detection of simulated periapical lesions.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod
; 92(1): 93-7, 2001 Jul.
Article
em En
| MEDLINE
| ID: mdl-11458252
ABSTRACT
OBJECTIVE:
The purpose of this study was to evaluate the diagnostic efficacy of Ektaspeed Plus film (EPF), a charge-coupled device (CCD), and photostimulable phosphor (PSP)-based digital images for detection of simulated periapical lesions. STUDYDESIGN:
Lesions were simulated in the periapical areas of 24 human mandibular sections invested in acrylic using burs of sizes #1, 2, 4, and 6 and imaged using EPF, CCD, and PSP sensors. Percent correct response scores, sensitivity, and specificity values were computed for all variables. Repeated-measures analysis of variance and post hoc testing were performed to determine the effects of imaging modality, observer, and lesion sizes with respect to lesion detection.RESULTS:
EPF displayed the highest sensitivity and specificity, followed by PSP and CCD images (P <.001). Percent correct score was the highest for 3 of 4 observers when EPF was used. Analysis of variance revealed significance (P <.001) with respect to all variables. Observers with experience in digital image-viewing performed better than those without such experience (P <.001). Intraobserver agreement was fair (kappa = 0.5).CONCLUSIONS:
EPF outperformed CCD and PSP images when observers could manipulate image characteristics.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Doenças Periapicais
/
Filme para Raios X
/
Radiografia Dentária Digital
Tipo de estudo:
Diagnostic_studies
Limite:
Humans
Idioma:
En
Revista:
Oral Surg Oral Med Oral Pathol Oral Radiol Endod
Ano de publicação:
2001
Tipo de documento:
Article