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Conference Paper: Factors affecting artifact of micro-CT scanning for implant
Title | Factors affecting artifact of micro-CT scanning for implant |
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Authors | |
Keywords | Implants Micro-CT Physical and Radiology |
Issue Date | 2012 |
Publisher | Sage Publications, Inc. The Journal's web site is located at http://www.sagepub.com/journalsProdDesc.nav?prodId=Journal201925 |
Citation | The 2012 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 Special Issue C, abstract no. 169410 How to Cite? |
Abstract | Objectives: 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. |
Description | Session: Implantology |
Persistent Identifier | http://hdl.handle.net/10722/184871 |
ISSN | 2023 Impact Factor: 5.7 2023 SCImago Journal Rankings: 1.909 |
DC Field | Value | Language |
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dc.contributor.author | Li, J | en_US |
dc.contributor.author | Pow, EHN | en_US |
dc.contributor.author | Zheng, L | en_US |
dc.contributor.author | Ma, L | en_US |
dc.contributor.author | Cheung, LK | en_US |
dc.contributor.author | Kwong, DLW | en_US |
dc.date.accessioned | 2013-07-15T10:15:44Z | - |
dc.date.available | 2013-07-15T10:15:44Z | - |
dc.date.issued | 2012 | en_US |
dc.identifier.citation | The 2012 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 Special Issue C, abstract no. 169410 | en_US |
dc.identifier.issn | 0022-0345 | - |
dc.identifier.uri | http://hdl.handle.net/10722/184871 | - |
dc.description | Session: Implantology | - |
dc.description.abstract | Objectives: 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.language | eng | en_US |
dc.publisher | Sage Publications, Inc. The Journal's web site is located at http://www.sagepub.com/journalsProdDesc.nav?prodId=Journal201925 | - |
dc.relation.ispartof | Journal of Dental Research | en_US |
dc.rights | Journal of Dental Research. Copyright © Sage Publications, Inc. | - |
dc.subject | Implants | - |
dc.subject | Micro-CT | - |
dc.subject | Physical and Radiology | - |
dc.title | Factors affecting artifact of micro-CT scanning for implant | en_US |
dc.type | Conference_Paper | en_US |
dc.identifier.email | Pow, EHN: ehnpow@hku.hk | en_US |
dc.identifier.email | Zheng, L: lwzheng@hku.hk | en_US |
dc.identifier.email | Ma, L: lima@hku.hk | en_US |
dc.identifier.email | Cheung, LK: lkcheung@hkucc.hku.hk | en_US |
dc.identifier.email | Kwong, DLW: dlwkwong@hku.hk | en_US |
dc.identifier.authority | Pow, EHN=rp00030 | en_US |
dc.identifier.authority | Zheng, L=rp01411 | en_US |
dc.identifier.authority | Cheung, LK=rp00013 | en_US |
dc.identifier.authority | Kwong, DLW=rp00414 | en_US |
dc.identifier.hkuros | 215131 | en_US |
dc.identifier.volume | 91 | en_US |
dc.identifier.issue | Special Issue C | en_US |
dc.publisher.place | United States | - |
dc.identifier.issnl | 0022-0345 | - |