title: Comparative study of two digital radiographic storage phosphor systems.
abstract: The objective of this study was to evaluate the image quality and dynamic range of two digital radiographic storage phosphor systems: Digora (Soredex, Finland) and DenOptix (Gendex, USA). Four objects were analyzed and eight exposure times employed, totaling 64 images that were analyzed by 5 examiners using a scale from 1 to 4 to classify the images. The scores were submitted to analysis of variance and the results showed statistical differences among the averages attributed to the systems, to the exposition times and to the objects (p 0.01 Pound). Digora presented a larger dynamic range and, in general, a better image quality. Although these 2 systems present the same photon detector, they present different results in relation to the evaluated items.
authors.affiliation: Departamento de Diagnóstico Oral, Universidade Estadual de Campinas, Piracicaba, SP, Brasil.
authors.forename: A E
authors.initials: AE
authors.lastname: Oliveira
authors.forename: S M
authors.initials: SM
authors.lastname: de Almeida
authors.forename: G A
authors.initials: GA
authors.lastname: Paganini
authors.forename: F
authors.initials: F
authors.lastname: Haiter Neto
authors.forename: F N
authors.initials: FN
authors.lastname: Bóscolo
mesh_terms: D015502:Absorptiometry, Photon; D000704:Analysis of Variance; D004867:Equipment Design; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation / Q000379:methods; D008334:Mandible / Q000000981:diagnostic imaging; D015588:Observer Variation; D010483:Periapical Diseases / Q000000981:diagnostic imaging; D011829:Radiation Dosage; D011856:Radiographic Image Enhancement / Q000295:instrumentation / Q000379:methods; D019252:Radiography, Dental, Digital / Q000295:instrumentation / Q000379:methods*; D013997:Time Factors