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Conference Paper: Factors affecting artifact of micro-CT scanning for implant

TitleFactors affecting artifact of micro-CT scanning for implant
Authors
KeywordsImplants
Micro-CT
Physical and Radiology
Issue Date2012
PublisherSage Publications, Inc. The Journal's web site is located at http://www.sagepub.com/journalsProdDesc.nav?prodId=Journal201925
Citation
The Annual Meeting of the International Association for Dental Research (IADR) Southeast Asian Division, Hong Kong, China, 3-4 November 2012. In Journal of Dental Research, 2012, v. 91 n. Special Issue C: abstract no. 169410 How to Cite?
AbstractObjectives: To investigate the impact of cover screw, resin embedment and tube angulation on artifact of micro-CT scanning for implant. Methods: A total of twelve implants were randomly divided into 4 groups: 1) implants with cover screw and resin embedment; 2) implants with cover screw but no resin embedment; 3) implants with no cover screw but with resin embedment; 4) implants with no cover screw or or resin embedment. The implants were scanned with micro-CT at 0°, 45° and 90° tube angulation. Images were assessed and the ratio of artifact volume to total volume (AV/TV) was calculated. A multiple regression analysis in stepwise model was used to determine the significance of different factors. One-way ANOVA was performed to identify which combination of factors could minimize the artifact. Results: In the regression analysis, tube angulation was identified as the best predictor for artifact among the factors. Resin embedment also had significant effect on artifact volume while cover screw had not. ANOVA analysis indicated that non-embedded implants produced minimal artifact when the axis of implant was parallel to the center of x-ray source of micro-CT. Conclusions: Tube angulation and resin embedment affected the artifact volume of micro-CT scanning for implant while cover screw did not.
DescriptionSession: Implantology
Persistent Identifierhttp://hdl.handle.net/10722/184871
ISSN
2015 Impact Factor: 4.602
2015 SCImago Journal Rankings: 1.714

 

DC FieldValueLanguage
dc.contributor.authorLi, Jen_US
dc.contributor.authorPow, EHNen_US
dc.contributor.authorZheng, Len_US
dc.contributor.authorMa, Len_US
dc.contributor.authorCheung, LKen_US
dc.contributor.authorKwong, DLWen_US
dc.date.accessioned2013-07-15T10:15:44Z-
dc.date.available2013-07-15T10:15:44Z-
dc.date.issued2012en_US
dc.identifier.citationThe Annual Meeting of the International Association for Dental Research (IADR) Southeast Asian Division, Hong Kong, China, 3-4 November 2012. In Journal of Dental Research, 2012, v. 91 n. Special Issue C: abstract no. 169410en_US
dc.identifier.issn0022-0345-
dc.identifier.urihttp://hdl.handle.net/10722/184871-
dc.descriptionSession: Implantology-
dc.description.abstractObjectives: To investigate the impact of cover screw, resin embedment and tube angulation on artifact of micro-CT scanning for implant. Methods: A total of twelve implants were randomly divided into 4 groups: 1) implants with cover screw and resin embedment; 2) implants with cover screw but no resin embedment; 3) implants with no cover screw but with resin embedment; 4) implants with no cover screw or or resin embedment. The implants were scanned with micro-CT at 0°, 45° and 90° tube angulation. Images were assessed and the ratio of artifact volume to total volume (AV/TV) was calculated. A multiple regression analysis in stepwise model was used to determine the significance of different factors. One-way ANOVA was performed to identify which combination of factors could minimize the artifact. Results: In the regression analysis, tube angulation was identified as the best predictor for artifact among the factors. Resin embedment also had significant effect on artifact volume while cover screw had not. ANOVA analysis indicated that non-embedded implants produced minimal artifact when the axis of implant was parallel to the center of x-ray source of micro-CT. Conclusions: Tube angulation and resin embedment affected the artifact volume of micro-CT scanning for implant while cover screw did not.-
dc.languageengen_US
dc.publisherSage Publications, Inc. The Journal's web site is located at http://www.sagepub.com/journalsProdDesc.nav?prodId=Journal201925-
dc.relation.ispartofJournal of Dental Researchen_US
dc.rightsJournal of Dental Research. Copyright © Sage Publications, Inc.-
dc.subjectImplants-
dc.subjectMicro-CT-
dc.subjectPhysical and Radiology-
dc.titleFactors affecting artifact of micro-CT scanning for implanten_US
dc.typeConference_Paperen_US
dc.identifier.emailPow, EHN: ehnpow@hku.hken_US
dc.identifier.emailZheng, L: lwzheng@hku.hken_US
dc.identifier.emailMa, L: lima@hku.hken_US
dc.identifier.emailCheung, LK: lkcheung@hkucc.hku.hken_US
dc.identifier.emailKwong, DLW: dlwkwong@hku.hken_US
dc.identifier.authorityPow, EHN=rp00030en_US
dc.identifier.authorityZheng, L=rp01411en_US
dc.identifier.authorityCheung, LK=rp00013en_US
dc.identifier.authorityKwong, DLW=rp00414en_US
dc.identifier.hkuros215131en_US
dc.identifier.volume91en_US
dc.identifier.issueSpecial Issue C: abstract no. 169410en_US
dc.publisher.placeUnited States-

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