Journal article
Effects of Exposure Parameters and Voxel Size for Cone-Beam Computed Tomography on the Image Matching Accuracy with an Optical Dental Scan Image: An In Vitro Study
BioMed research international, Vol.2021(1), p.6971828
2021
DOI: 10.1155/2021/6971828
PMCID: PMC8213486
PMID: 34222482
Abstract
This study is aimed at assessing the effects of exposure parameters and voxel size for cone-beam computed tomography (CBCT) on the image matching accuracy with an optical dental scan image. CBCT and optical scan images of a dry human mandible were obtained. Different CBCT settings were used: tube voltage, 60, 80, and 100 kVp; tube current, 6 and 8 mA; and voxel size, 100, 200, and 300 mu m. Image matching between the CBCT and optical scan images was performed using implant planning software by dental professionals (n=18). The image matching accuracy in each combination of CBCT settings was evaluated by assessing the linear discrepancy between the three-dimensionally reconstructed radiological image and the registered optical scan image using an image analysis software program. The Kruskal-Wallis test and a post hoc Mann-Whitney U test with Bonferroni correction were used to compare the accuracy of image registration between the groups (alpha=0.05). Overall, the image matching accuracy was not significantly different between tube voltage and current settings; however, significantly higher image registration errors were found at the combination of 100 kVp tube voltage/8 mA tube current (F=8.44, P<0.001). Changes in voxel sizes did not significantly interfere with the image registration results. No interaction was found among voltage, current, and voxel size in terms of image registration accuracy (F=2.022, P=0.091). Different exposure parameter settings in tube voltage and tube current did not significantly influence the image matching accuracy between CBCT and optical dental scan images; however, a high radiation dose could be inappropriate. The image matching accuracy was not significantly affected by changing the voxel sizes of CBCT.
Details
- Title: Subtitle
- Effects of Exposure Parameters and Voxel Size for Cone-Beam Computed Tomography on the Image Matching Accuracy with an Optical Dental Scan Image: An In Vitro Study
- Creators
- Hang-Nga Mai - Kyungpook Natl Univ, Inst Translat Res Dent, 2177 Dalgubeoldae Ro, Daegu 41940, South KoreaDu-Hyeong Lee - Kyungpook Natl Univ, Inst Translat Res Dent, 2177 Dalgubeoldae Ro, Daegu 41940, South Korea
- Resource Type
- Journal article
- Publication Details
- BioMed research international, Vol.2021(1), p.6971828
- DOI
- 10.1155/2021/6971828
- PMID
- 34222482
- PMCID
- PMC8213486
- NLM abbreviation
- Biomed Res Int
- ISSN
- 2314-6133
- eISSN
- 2314-6141
- Publisher
- Hindawi Publishing Group
- Number of pages
- 6
- Grant note
- 2020R1I1A1A01062967 / Bio & Medical Technology Development Program of the National Research Foundation - Korean Government 202011A02 / Ministry of Food and Drug Safety; Ministry of Food & Drug Safety (MFDS) Ministry of Health & Welfare, Republic of Korea Korea Medical Device Development Fund grant - Korea government (the Ministry of Science and ICT) Ministry of Trade, Industry and Energy
- Language
- English
- Date published
- 2021
- Academic Unit
- Prosthodontics
- Record Identifier
- 9984914020602771
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