A phantom for simplified image quality control of dental cone beam computed tomography units

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A phantom for simplified image quality control of dental cone beam computed tomography units

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Publication Article, peer reviewed scientific
Title A phantom for simplified image quality control of dental cone beam computed tomography units
Author(s) Torgersen, Gerald ; Hol, Caroline ; Møystad, Anne ; Hellén-Halme, Kristina ; Nilsson, Mats
Date 2014
English abstract
OBJECTIVE: The purpose of this work was to develop an inexpensive phantom for simplified image quality assurance (IQA) together with algorithms for objective evaluation of image quality parameters and to integrate these components into an easy-to-use software package. This should help make quality control of dental cone beam computed tomography (CBCT) units accessible, easy, and affordable for any specialist or general practitioner. STUDY DESIGN: Our study developed an inexpensive polymethyl methacrylate (Plexiglas) phantom containing objects and structures for objective quantification of the most important image-quality parameters in CBCT imaging. It also paired the phantom with a software package, based on open-source software, for automatic processing and analysis. RESULTS: The software produces objectively measured IQA data for low- and high-contrast resolution, uniformity, noise characteristics, and geometric linearity. CONCLUSIONS: The authors consider the phantom and methods presented in this article to be a step toward helping clinical dental personnel perform regular quality assurance on CBCT units.
DOI http://dx.doi.org/10.1016/j.oooo.2014.08.003 (link to publisher's fulltext.)
Publisher Elsevier
Host/Issue Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology;5
Volume 118
ISSN 2212-4403
Pages 603-11
Language eng (iso)
Subject(s) Medicine
Research Subject Categories::ODONTOLOGY
Handle http://hdl.handle.net/2043/20453 (link to this page)

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