Artículos de revistas
Image Quality In Partially Erased Denoptix® Storage Phosphor Plates
Registro en:
Brazilian Oral Research. , v. 22, n. 1, p. 78 - 83, 2008.
18068324
2-s2.0-44449101641
Autor
Pereira de Castro Lopes S.L.
da Cruz A.D.
Ferreira R.I.
Boscolo F.N.
de Almeida S.M.
Institución
Resumen
This study aimed at investigating the effect of the partial erasing of DenOptix® system storage phosphor plates on the image quality of digital radiographs. Standardized digital radiographs were acquired of a phantom mandible, using size 2 intraoral DenOptix® storage phosphor plates (n = 10). Subsequently, the active areas of the plates were placed in a viewing box with a constant light intensity of 1,700 lux for 130 seconds to achieve complete erasing (control plate), as well as for 0, 5, 10, 1S, 20, 25, 34, 66, and 98 seconds, to compose the experimental group of partially erased plates. The same exposure settings were repeated using the control and experimental plates, which were scanned at a resolution of 300 dpi. Five radiologists independently examined the pairs of digital radiographs obtained with the control and partially erased plates, in random order, and indicated the best image for oral diagnosis. Cochran-Mantel-Haenszel's chi-square test, at a significance level of 5%, was used to compare the percentages of superior quality images in each combination of control and partially erased plates, subjectively assessed. No significant differences were found between radiographic images acquired with control and partially erased plates, except for the combination of 0 second (30%) versus 130 seconds (70%), p = 0.0047. It can be concluded that, under adequate light intensity conditions, erasing intraoral DenOptix® storage phosphor plates may require time intervals of as little as 5 seconds. 22 1 78 83 Akdeniz, B.G., Gröndahl, H.G., Kose, T., Effect of delayed scanning of storage phosphor plates (2005) Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 99 (5), pp. 603-607 Akdeniz, B.G., Gröndahl, H.G., Degradation of storage phosphor images due to scanning delay (2006) Dentomaxillofac Radiol, 35 (2), pp. 74-77 Almeida, S.M., Oliveira, A.E.F., Ferreira, R.I., Bóscolo, F.N., Image quality in digital radiographic systems (2003) Braz Dent J, 14 (2), pp. 136-141 Borg, E., Attaelmanan, A., Gröndahl, H.G., Subjective image quality of solid-state and photostimulable phosphor systems for digital intra-oral radiography (2000) Dentomaxillofac Radiol, 29 (2), pp. 70-75 Ferreira, R.I., Haiter-Neto, F., Tabchoury, C.P.M., Paiva, G.A.N., Bóscolo, F.N., Assessment of enamel demineralization using conventional, digital, and digitized radiography (2006) Braz Oral Res, 20 (2), pp. 114-119 Wenzel, A., Gröndahl, H.G., Direct digital radiography in the dental office (1995) Int Dent J, 45 (1), pp. 27-34 Oliveira, A.E., Almeida, S.M., Paganini, G.A., Haiter Neto, F., Bóscolo, F.N., Comparative study of two digjtal radiographic storage phosphor systems (2000) Braz Dent J, 11 (2), pp. 111-116 Borg, E., Attaelmanan, A., Gröndahl, H.G., Image plate systems differ in physical performance (2000) Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 89 (1), pp. 118-124 Martins, M.G.B.Q., Haiter Neto, F., Whaites, E.J., Analysis of digital images acquired using different phosphor storage plates (PSPs) subjected to varying reading times and storage conditions (2003) Dentomaxillofac Radiol, 32 (3), pp. 186-190 (1998) DenOptix digital imaging system - user manual and installation guide, , Gendex Dental X-Ray Division, Des Plaines: The Division; Menig, J.J., The DenOptix digital radiographic system (1999) J Clin Orthod, 33 (7), pp. 407-410 Berkhout WE, Beuger DA, Sanderink GC, van der Stelt PF. The dynamic range of digital radiographic systems: dose reduction or risk of overexposure? Dentomaxillofac Radiol. 2004;33(1):1-SHildebolt, C.F., Couture, R.A., Whiting, B.R., Dental photostimulable phosphor radiography (2000) Dent Clin North Am, 44 (2), pp. 273-297 Martins, M.G.B.Q., Whaites, E.J., Ambrosano, G.M.B., Haiter Neto, F., What happens if you delay scanning Digora phosphor storage plates (PSPs) for up to 4 hours? (2006) Dentomaxillofac Radiol, 35 (3), pp. 143-146 Gröndahl, H.G., Wenzel, A., Borg, E., Tammisalo, E., An image plate system for digital intra-oral radiography (1996) Dent Update, 23 (8), pp. 334-337