Effect of Tube Current on Linear Measurement Accuracy of Cone Beam Computed Tomography Images

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dc.contributor.authorSener, Elif
dc.contributor.authorOnem, Erinc
dc.contributor.authorMert, Ali
dc.contributor.authorBaksi, B. Guniz
dc.date.accessioned2019-10-27T10:46:37Z
dc.date.available2019-10-27T10:46:37Z
dc.date.issued2018
dc.departmentEge Üniversitesien_US
dc.description.abstractObjective: To compare the accuracy of linear bone measurements on Cone Beam Computed Tomography (CBCT) images obtained using different tube currents. Methods: Twelve reference points were prepared by using burs and heated gutta-percha on each of the ten dry mandibles for horizontal and vertical measurements on anterior and posterior segments. Images were obtained with Kodak 9000 3D cbct system at 5 different tube currents (2 mA, 3.2 mA, 6.3 mA, 10 mA and 15 mA). Three radiologists did total of 1200 linear measurements. True lengths were determined with a digital caliper. Height and width measurements from each of the mA settings were compared to the gold standard using Bland and Altman plots. Overall comparison of the measurements was done using repeated measures ANOVA. Correlation between individual measurements of each observer was assessed with Pearson's correlation analysis. Results: No differences were found in the height and width measurements for both anterior (p>0.05) and posterior (p>0.05) measurements for different mA settings. Increase in mA caused an increase in the geometric accuracy of cbct images (p>0.05). Mean deviations from the gold standard ranged between -0.7 and +0.12 mm among the lowest and highest tube settings. The correlation between observers' measurements ranged between 0.97 and 0.98 for increasing tube settings. Conclusion: Tube current may be reduced as low as 2mA without jeopardizing linear measurement accuracy.en_US
dc.identifier.doi10.2174/1573405613666170331102713
dc.identifier.endpage333en_US
dc.identifier.issn1573-4056
dc.identifier.issn1875-6603
dc.identifier.issn1573-4056en_US
dc.identifier.issn1875-6603en_US
dc.identifier.issue2en_US
dc.identifier.startpage327en_US
dc.identifier.urihttps://doi.org/10.2174/1573405613666170331102713
dc.identifier.urihttps://hdl.handle.net/11454/31324
dc.identifier.volume14en_US
dc.identifier.wosWOS:000425530100017en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherBentham Science Publ Ltden_US
dc.relation.ispartofCurrent Medical Imaging Reviewsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectTube currenten_US
dc.subjectlinear measurementen_US
dc.subjectaccuracyen_US
dc.subjectcone beam CTen_US
dc.subjectcomputed tomographyen_US
dc.subjectbone measurementsen_US
dc.titleEffect of Tube Current on Linear Measurement Accuracy of Cone Beam Computed Tomography Imagesen_US
dc.typeArticleen_US

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