Dosimetry of digital panoramic imaging. Part I: Patient exposure
- PMID: 15897284
- DOI: 10.1259/dmfr/28107460
Dosimetry of digital panoramic imaging. Part I: Patient exposure
Abstract
Objectives: To measure patient radiation dose during panoramic exposure with various panoramic units for digital panoramic imaging.
Methods: An anthropomorphic phantom was filled with thermoluminescent dosemeters (TLD 100) and exposed with five different digital panoramic units during ten consecutive exposures. Four machines were equipped with a direct digital CCD (charge coupled device) system, whereas one of the units used storage phosphor plates (indirect digital technique). The exposure settings recommended by the different manufacturers for the particular image and patient size were used: tube potential settings ranged between 64 kV and 74 kV, exposure times between 8.2 s and 19.0 s, at fuse current values between 4 mA and 7 mA. The effective radiation dose was calculated with inclusion of the salivary glands.
Results: Effective radiation doses ranged between 4.7 microSv and 14.9 microSv for one exposure. Salivary glands absorbed the most radiation for all panoramic units. When indirect and direct digital panoramic systems were compared, the effective dose of the indirect digital unit (8.1 microSv) could be found within the range of the effective doses for the direct digital units (4.7-14.9 microSv).
Conclusions: A rather wide range of patient radiation doses can be found for digital panoramic units. There is a tendency for lower effective doses for digital compared with analogue panoramic units, reported in previous studies.
Similar articles
-
Radiation dose reduction in direct digital panoramic radiography.Eur J Radiol. 2009 Jul;71(1):42-8. doi: 10.1016/j.ejrad.2008.03.018. Epub 2008 May 2. Eur J Radiol. 2009. PMID: 18448296
-
Dosimetry of digital panoramic imaging. Part II: Occupational exposure.Dentomaxillofac Radiol. 2005 May;34(3):150-3. doi: 10.1259/dmfr/65011036. Dentomaxillofac Radiol. 2005. PMID: 15897285
-
Assessment of the problem: pediatric doses in screen-film and digital radiography.Pediatr Radiol. 2004 Oct;34 Suppl 3:S173-82; discussion S234-41. doi: 10.1007/s00247-004-1267-8. Pediatr Radiol. 2004. PMID: 15558259 Review.
-
Radiation doses of indirect and direct digital cephalometric radiography.Br Dent J. 2004 Aug 14;197(3):149-52; discussion 140. doi: 10.1038/sj.bdj.4811532. Br Dent J. 2004. PMID: 15311250
-
Radiation dosimetry in specific area radiography.Oral Surg Oral Med Oral Pathol. 1989 Mar;67(3):347-53. doi: 10.1016/0030-4220(89)90368-x. Oral Surg Oral Med Oral Pathol. 1989. PMID: 2648245 Review.
Cited by
-
Panoramic errors in pediatric patients with special needs.Sci Rep. 2023 Jul 20;13(1):11757. doi: 10.1038/s41598-023-38823-1. Sci Rep. 2023. PMID: 37474557 Free PMC article.
-
Diagnostic radiological examinations and risk of intracranial tumours in adults-findings from the Interphone Study.Int J Epidemiol. 2022 May 9;51(2):537-546. doi: 10.1093/ije/dyab140. Int J Epidemiol. 2022. PMID: 34648614 Free PMC article.
-
Ex vivo assessment of the buccal and oral bone by CBCT.J Orofac Orthop. 2023 Jan;84(1):41-48. doi: 10.1007/s00056-021-00335-w. Epub 2021 Aug 9. J Orofac Orthop. 2023. PMID: 34370050 Free PMC article.
-
Modern 3D cephalometry in pediatric orthodontics-downsizing the FOV and development of a new 3D cephalometric analysis within a minimized large FOV for dose reduction.Clin Oral Investig. 2021 Jul;25(7):4651-4670. doi: 10.1007/s00784-021-03779-x. Epub 2021 Jan 25. Clin Oral Investig. 2021. PMID: 33492515
-
Does dose optimisation in digital panoramic radiography affect diagnostic performance?Clin Oral Investig. 2021 Feb;25(2):637-643. doi: 10.1007/s00784-020-03535-7. Epub 2020 Aug 26. Clin Oral Investig. 2021. PMID: 32845471
Publication types
MeSH terms
LinkOut - more resources
Full Text Sources
