Three-dimensional virtual preoperative implant planning P3Dental using computed tomography images
Identifieur interne : 002829 ( Main/Exploration ); précédent : 002828; suivant : 002830Three-dimensional virtual preoperative implant planning P3Dental using computed tomography images
Auteurs : A. M. Marques Da Silva [Brésil] ; E. C. Hoffmann [Brésil] ; E. G. Link [Brésil] ; A. B. Trombetta [Brésil] ; F. Bacim [Brésil] ; J. A. Borges [Brésil]Source :
- IFMBE Proceedings [ 1680-0737 ] ; 2013.
Abstract
Abstract: Introduction: Currently there are few software systems using cone beam computed tomography (CBCT) or conventional computed tomography (CT) images to aid in oral planning surgery and produce surgical drilling guides. Although CBCT allows a lower effective radiation dose, in a short scanning time, with reduced costs, there are several artifacts that affect the image quality producing challenges for virtual surgical planning. This article presents the development of a new independent freeware software system for 3D virtual preoperative implant planning, called P3Dental, based on CT images. Materials and Methods: The methodology requires two CBCT acquisitions – a CBCT image of the patient dental splint with gutta-percha fiducial markers; and a typical CBCT scan protocol, using the dental splint with the fiducial markers preserved in the same position. A semi-automatic local threshold, followed by a top-hat morphological operator was used to extract the markers for the registration process. The generalized Karhunen-Loève transform was used for developing the volumetric rigid registration method. The methodology was tested with five CBCT patient images. Results and Discussion: The linear and angular deviations between fiducial markers in the CBCT images were between 0.5 and 2.0mm in the x axis, and between 0.5 and 5 degrees, respectively. These deviation values are compatible with other in vitro studies, showing the reliability of the software for virtual surgical planning for implantodonty using low dose CBCT images.
Url:
DOI: 10.1007/978-3-642-29305-4_240
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Bacim</name><affiliation wicri:level="2"><country xml:lang="fr">Brésil</country><wicri:regionArea>Prototipos3D, TECNOPUC, Porto Alegre, RS</wicri:regionArea><placeName><region type="state">Rio Grande do Sul</region></placeName></affiliation></author><author><name sortKey="Borges, J A" sort="Borges, J A" uniqKey="Borges J" first="J. A." last="Borges">J. A. Borges</name><affiliation wicri:level="2"><country xml:lang="fr">Brésil</country><wicri:regionArea>Prototipos3D, TECNOPUC, Porto Alegre, RS</wicri:regionArea><placeName><region type="state">Rio Grande do Sul</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="s">IFMBE Proceedings</title><imprint><date>2013</date></imprint><idno type="ISSN">1680-0737</idno><idno type="eISSN">1433-9277</idno><idno type="ISSN">1680-0737</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1680-0737</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Introduction: Currently there are few software systems using cone beam computed tomography (CBCT) or conventional computed tomography (CT) images to aid in oral planning surgery and produce surgical drilling guides. Although CBCT allows a lower effective radiation dose, in a short scanning time, with reduced costs, there are several artifacts that affect the image quality producing challenges for virtual surgical planning. This article presents the development of a new independent freeware software system for 3D virtual preoperative implant planning, called P3Dental, based on CT images. Materials and Methods: The methodology requires two CBCT acquisitions – a CBCT image of the patient dental splint with gutta-percha fiducial markers; and a typical CBCT scan protocol, using the dental splint with the fiducial markers preserved in the same position. A semi-automatic local threshold, followed by a top-hat morphological operator was used to extract the markers for the registration process. The generalized Karhunen-Loève transform was used for developing the volumetric rigid registration method. The methodology was tested with five CBCT patient images. Results and Discussion: The linear and angular deviations between fiducial markers in the CBCT images were between 0.5 and 2.0mm in the x axis, and between 0.5 and 5 degrees, respectively. These deviation values are compatible with other in vitro studies, showing the reliability of the software for virtual surgical planning for implantodonty using low dose CBCT images.</div></front></TEI><affiliations><list><country><li>Brésil</li></country><region><li>Rio Grande do Sul</li></region></list><tree><country name="Brésil"><region name="Rio Grande do Sul"><name sortKey="Marques Da Silva, A M" sort="Marques Da Silva, A M" uniqKey="Marques Da Silva A" first="A. M." last="Marques Da Silva">A. M. Marques Da Silva</name></region><name sortKey="Bacim, F" sort="Bacim, F" uniqKey="Bacim F" first="F." last="Bacim">F. Bacim</name><name sortKey="Borges, J A" sort="Borges, J A" uniqKey="Borges J" first="J. A." last="Borges">J. A. Borges</name><name sortKey="Hoffmann, E C" sort="Hoffmann, E C" uniqKey="Hoffmann E" first="E. C." last="Hoffmann">E. C. Hoffmann</name><name sortKey="Link, E G" sort="Link, E G" uniqKey="Link E" first="E. G." last="Link">E. G. Link</name><name sortKey="Marques Da Silva, A M" sort="Marques Da Silva, A M" uniqKey="Marques Da Silva A" first="A. M." last="Marques Da Silva">A. M. Marques Da Silva</name><name sortKey="Trombetta, A B" sort="Trombetta, A B" uniqKey="Trombetta A" first="A. B." last="Trombetta">A. B. Trombetta</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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