title: Dimensional error of three-dimensional images generated by different software.
abstract: The aim of this study was to evaluate the accuracy of three-dimensional (3D) reconstructions generated by different software, computed tomography (CT) scanners and slice thicknesses. Ten human dry mandibles were scanned by CT and cone beam CT (CBCT). Digital files were processed in different software systems and 3D reconstructions were performed. Linear measures were made and compared. The results showed significant differences in linear distances between the human dry mandibles and their 3D reconstructions. The relative error from CBCT images ranged from 3.10 to 4.82% and from 3.40 to 5.92% in CT images. It is important to consider that the performance of the software is not just related to the algorithm used, but mostly with its handling, that can facilitate or not the measurement by the operator. In conclusion, the discrepancies were not greater than 0.58 mm, so they should not affect the image quality.
authors.affiliation: a Propedeutics and Integrated Clinic Department, School of Dentistry, Federal University of Bahia , Salvador , Bahia , Brazil .
authors.forename: Poliana Andrade
authors.initials: PA
authors.lastname: Pimentel
authors.affiliation: a Propedeutics and Integrated Clinic Department, School of Dentistry, Federal University of Bahia , Salvador , Bahia , Brazil .
authors.forename: Rodrigo Tavares
authors.initials: RT
authors.lastname: Bomfim
authors.affiliation: a Propedeutics and Integrated Clinic Department, School of Dentistry, Federal University of Bahia , Salvador , Bahia , Brazil .
authors.forename: Lucio Costa Safira
authors.initials: LC
authors.lastname: Andrade
authors.affiliation: a Propedeutics and Integrated Clinic Department, School of Dentistry, Federal University of Bahia , Salvador , Bahia , Brazil .
authors.forename: Eduardo Gomes
authors.initials: EG
authors.lastname: Ferraz
authors.affiliation: a Propedeutics and Integrated Clinic Department, School of Dentistry, Federal University of Bahia , Salvador , Bahia , Brazil .
authors.forename: Patricia Leite
authors.initials: PL
authors.lastname: Ribeiro Lamberti
authors.affiliation: b Department of Stomatology , School of Dentistry at Bauru, University of São Paulo , Bauru , Brazil , and.
authors.forename: Izabel Regina Fischer
authors.initials: IR
authors.lastname: Rubira-Bullen
authors.affiliation: a Propedeutics and Integrated Clinic Department, School of Dentistry, Federal University of Bahia , Salvador , Bahia , Brazil .|c Health Department , State University of Feira de Santana , Feira de Santana , Bahia , Brazil.
authors.forename: Viviane Almeida
authors.initials: VA
authors.lastname: Sarmento
mesh_terms: D054893:Cone-Beam Computed Tomography / Q000379:methods* / Q000592:standards*; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods* / Q000592:standards*; D008334:Mandible / Q000000981:diagnostic imaging; D015203:Reproducibility of Results; D012984:Software
keywords: Biomedical software; computed tomography; cone beam computed tomography; three-dimensional reconstructions