Effective dose of cone beam computed tomography (CBCT) of the facial skeleton : a systematic review

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Effective dose of cone beam computed tomography (CBCT) of the facial skeleton : a systematic review

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Publication Article, review peer-reviewed scientific
Title Effective dose of cone beam computed tomography (CBCT) of the facial skeleton : a systematic review
Author(s) Al-Okshi, Ayman ; Lindh, Christina ; Salé, Hanna ; Gunnarsson, Mikael ; Rohlin, Madeleine
Date 2015
English abstract
Objective: To estimate effective dose of cone beam CT (CBCT) of the facial skeleton with focus on measurement methods and scanning protocols. Methods: A systematic review, which adhered to the preferred reporting items for systematic reviews (PRISMA) Statement, of the literature up to April 2014 was conducted. Data sources included MEDLINE®, The Cochrane Library and Web of Science. A model was developed to underpin data extraction from 38 included studies. Results: Technical specifications of the CBCT units were insufficiently described. Heterogeneity in measurement methods and scanning protocols between studies made comparisons of effective doses of different CBCT units and scanning protocols difficult. Few studies related doses to image quality. Reported effective dose varied across studies, ranging between 9.7 and 197.0 mSv for field of views (FOVs) with height #5cm, between 3.9 and 674.0 mSv for FOVs of heights 5.1–10.0 cm and between 8.8 and 1073.0 mSv for FOVs .10 cm. There was an inconsistency regarding reported effective dose of studies of the same CBCT unit with the same FOV dimensions. Conclusion: The review reveals a need for studies on radiation dosages related to image quality. Reporting quality of future studies has to be improved to facilitate comparison of effective doses obtained from examinations with different CBCT units and scanning protocols. A model with minimum data set on important parameters based on this observation is proposed. Advances in knowledge: Data important when estimating effective dose were insufficiently reported in most studies. A model with minimum data based on this observation is proposed. Few studies related effective dose to image quality.
DOI http://dx.doi.org/10.1259/bjr.20140658 (link to publisher's fulltext)
Publisher British Institute of Radiology
Host/Issue British Journal of Radiology;1045
Volume 88
ISSN 0007-1285
Pages 20140658
Language eng (iso)
Subject(s) Medicine
Research Subject Categories::ODONTOLOGY
Handle http://hdl.handle.net/2043/19754 (link to this page)

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