Comparison of radiation absorbed dose in target organs in maxillofacial imaging with panoramic, conventional linear tomography, cone beam computed tomography and computed tomography. (English)

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  • Additional Information
    • Publication Year:
      2009
    • Author-Supplied Keywords:
      Absorbed dose
      Cone bean computed tomography
      Thermoluminescent dosimetry (TLD)
    • NAICS/Industry Codes:
      NAICS/Industry Codes 621512 Diagnostic Imaging Centers
      811219 Other Electronic and Precision Equipment Repair and Maintenance
      541380 Testing Laboratories
    • Abstract:
      Background and Aim: The objective of this study was to measure and compare the tissue absorbed dose in thyroid gland, salivary glands, eye and skin in maxillofacial imaging with panoramic, conventional linear tomography, cone beam computed tomography (CBCT) and computed tomography (CT). Materials and Methods: Thermoluminescent dosimeters (TLD) were implanted in 14 sites of RANDO phantom to measure average tissue absorbed dose in thyroid gland, parotid glands, submandibular glands, sublingual gland, lenses and buccal skin. The Promax (PLANMECA, Helsinki, Finland) unit was selected for Panoramic, conventional linear tomography and cone beam computed tomography examinations and spiral Hispeed/Fxi (General Electric,USA) was selected for CT examination. The average tissue absorbed doses were used for the calculation of the equivalent and effective doses in each organ. Results: The average absorbed dose for panoramic ranged from 0.038 mGY (Buccal skin) to 0.308 mGY (submandibular gland), linear tomography ranged from 0.048 mGY (Lens) to 0.510 mGY (submandibular gland), CBCT ranged from 0.322 mGY (thyroid glad) to 1.144 mGY (parotid gland) and in CT ranged from 2.495 mGY (sublingual gland) to 3.424 mGY (submandibular gland). Total effective dose in CBCT is 5 times greater than panoramic and 4 times greater than linear tomography, and in CT, 30 and 22 times greater than panoramic and linear tomography, respectively. Total effective dose in CT is 6 times greater than CBCT. Conclusion: For obtaining 3-dimensional (3D) information in maxillofacial region, CBCT delivers the lower dose than CT, and should be preferred over a medical CT imaging. Furthermore, during maxillofacial imaging, salivary glands receive the highest dose of radiation. [ABSTRACT FROM AUTHOR]
    • Abstract:
      Copyright of Journal of Dental Medicine is the property of Tehran University of Medical Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
    • ISSN:
      1024641X
    • Accession Number:
      59513094
  • Citations
    • ABNT:
      M., P. et al. Comparison of radiation absorbed dose in target organs in maxillofacial imaging with panoramic, conventional linear tomography, cone beam computed tomography and computed tomography. (English). Journal of Dental Medicine, [s. l.], v. 22, n. 3, p. 113, 2009. Disponível em: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=edb&AN=59513094. Acesso em: 22 out. 2020.
    • AMA:
      M. P, A. S, M. HP, M. D. Comparison of radiation absorbed dose in target organs in maxillofacial imaging with panoramic, conventional linear tomography, cone beam computed tomography and computed tomography. (English). Journal of Dental Medicine. 2009;22(3):113. Accessed October 22, 2020. http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=edb&AN=59513094
    • APA:
      M., P., A., S., M., H. P., & M., D. (2009). Comparison of radiation absorbed dose in target organs in maxillofacial imaging with panoramic, conventional linear tomography, cone beam computed tomography and computed tomography. (English). Journal of Dental Medicine, 22(3), 113.
    • Chicago/Turabian: Author-Date:
      M., Panjnoush, Shokri A., Hosseini Pouya M., and Deevband M. 2009. “Comparison of Radiation Absorbed Dose in Target Organs in Maxillofacial Imaging with Panoramic, Conventional Linear Tomography, Cone Beam Computed Tomography and Computed Tomography. (English).” Journal of Dental Medicine 22 (3): 113. http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=edb&AN=59513094.
    • Harvard:
      M., P. et al. (2009) ‘Comparison of radiation absorbed dose in target organs in maxillofacial imaging with panoramic, conventional linear tomography, cone beam computed tomography and computed tomography. (English)’, Journal of Dental Medicine, 22(3), p. 113. Available at: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=edb&AN=59513094 (Accessed: 22 October 2020).
    • Harvard: Australian:
      M., P, A., S, M., HP & M., D 2009, ‘Comparison of radiation absorbed dose in target organs in maxillofacial imaging with panoramic, conventional linear tomography, cone beam computed tomography and computed tomography. (English)’, Journal of Dental Medicine, vol. 22, no. 3, p. 113, viewed 22 October 2020, .
    • MLA:
      M., Panjnoush, et al. “Comparison of Radiation Absorbed Dose in Target Organs in Maxillofacial Imaging with Panoramic, Conventional Linear Tomography, Cone Beam Computed Tomography and Computed Tomography. (English).” Journal of Dental Medicine, vol. 22, no. 3, Nov. 2009, p. 113. EBSCOhost, search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=edb&AN=59513094.
    • Chicago/Turabian: Humanities:
      M., Panjnoush, Shokri A., Hosseini Pouya M., and Deevband M. “Comparison of Radiation Absorbed Dose in Target Organs in Maxillofacial Imaging with Panoramic, Conventional Linear Tomography, Cone Beam Computed Tomography and Computed Tomography. (English).” Journal of Dental Medicine 22, no. 3 (November 2009): 113. http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=edb&AN=59513094.
    • Vancouver/ICMJE:
      M. P, A. S, M. HP, M. D. Comparison of radiation absorbed dose in target organs in maxillofacial imaging with panoramic, conventional linear tomography, cone beam computed tomography and computed tomography. (English). Journal of Dental Medicine [Internet]. 2009 Nov [cited 2020 Oct 22];22(3):113. Available from: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=edb&AN=59513094