Validation of a 3D CBCT-based protocol for the follow-up of mandibular condyle remodeling
Three-dimensional models of mandibular condyles provide a way for condylar remodeling follow-up. The overall aim was to develop and validate a user-friendly workflow for cone beam CT (CBCT)-based semi-automatic condylar registration and segmentation. A rigid voxel-based registration (VBR) technique...
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| Veröffentlicht in: | Dento-maxillo-facial radiology 2020-01, Vol.49 (3), p.20190364-20190364 |
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| container_title | Dento-maxillo-facial radiology |
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| creator | Verhelst, Pieter-Jan Shaheen, Eman de Faria Vasconcelos, Karla Van der Cruyssen, Fréderic Shujaat, Sohaib Coudyzer, Walter Salmon, Benjamin Swennen, Gwen Politis, Constantinus Jacobs, Reinhilde |
| description | Three-dimensional models of mandibular condyles provide a way for condylar remodeling follow-up. The overall aim was to develop and validate a user-friendly workflow for cone beam CT (CBCT)-based semi-automatic condylar registration and segmentation.
A rigid voxel-based registration (VBR) technique for registration of two post-operative CBCT-scans was tested. Two modified mandibular rami, with or without gonial angle, were investigated as the volume of interest for registration. Inter- and intraoperator reproducibility of this technique was tested on 10 mandibular rami of orthognathic patients by means of intraclass correlation coefficients (ICC's) and descriptive statistics of the transformation values from the VBR. The difference in reproducibility between the two modified rami was evaluated using a paired
-test (
< 0.05). For the segmentation, eight fresh frozen cadaver heads were scanned with CBCT and micro-CT. These data were used to test the inter- and intraoperator reproducibility (ICC's) and accuracy (Bland-Altman plot) of a newly designed workflow based on semi-automated contour enhancement.
Excellent ICC's (0.94-0.99) were obtained for the voxel-based registration technique using both modified rami. If the gonial angle was not included in the volume of interest, there was a trend of increased operator error suggested by significant higher interoperator differences in translation values (
= 0,0036). The segmentation workflow proved to be highly reproducible with excellent ICC's (0.99), low absolute mean volume differences between operators (23.19 mm
), within operators (28.93 mm
) and low surface distances between models of different operators ( |
| doi_str_mv | 10.1259/dmfr.20190364 |
| format | Article |
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A rigid voxel-based registration (VBR) technique for registration of two post-operative CBCT-scans was tested. Two modified mandibular rami, with or without gonial angle, were investigated as the volume of interest for registration. Inter- and intraoperator reproducibility of this technique was tested on 10 mandibular rami of orthognathic patients by means of intraclass correlation coefficients (ICC's) and descriptive statistics of the transformation values from the VBR. The difference in reproducibility between the two modified rami was evaluated using a paired
-test (
< 0.05). For the segmentation, eight fresh frozen cadaver heads were scanned with CBCT and micro-CT. These data were used to test the inter- and intraoperator reproducibility (ICC's) and accuracy (Bland-Altman plot) of a newly designed workflow based on semi-automated contour enhancement.
Excellent ICC's (0.94-0.99) were obtained for the voxel-based registration technique using both modified rami. If the gonial angle was not included in the volume of interest, there was a trend of increased operator error suggested by significant higher interoperator differences in translation values (
= 0,0036). The segmentation workflow proved to be highly reproducible with excellent ICC's (0.99), low absolute mean volume differences between operators (23.19 mm
), within operators (28.93 mm
) and low surface distances between models of different operators (<0.20 mm). Regarding the accuracy, CBCT-models slightly overestimate the condylar volume compared to micro-CT.
This study provides a validated user-friendly and reproducible method of creating three-dimensional-surface models of mandibular condyles out of longitudinal CBCT-scans.</description><identifier>ISSN: 0250-832X</identifier><identifier>EISSN: 1476-542X</identifier><identifier>DOI: 10.1259/dmfr.20190364</identifier><identifier>PMID: 31674794</identifier><language>eng</language><publisher>England: The British Institute of Radiology</publisher><subject>Cone-Beam Computed Tomography ; Follow-Up Studies ; Humans ; Imaging, Three-Dimensional ; Mandibular Condyle - diagnostic imaging ; Mandibular Condyle - surgery ; Medicin och hälsovetenskap ; Reproducibility of Results ; Spiral Cone-Beam Computed Tomography</subject><ispartof>Dento-maxillo-facial radiology, 2020-01, Vol.49 (3), p.20190364-20190364</ispartof><rights>2020 The Authors. Published by the British Institute of Radiology. 2020 The Authors</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c475t-f2409e91978befff075c12061b7146d0d1b289a81c8c5f1f5813433a996beacc3</citedby><cites>FETCH-LOGICAL-c475t-f2409e91978befff075c12061b7146d0d1b289a81c8c5f1f5813433a996beacc3</cites><orcidid>0000-0002-2127-441X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,552,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31674794$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttp://kipublications.ki.se/Default.aspx?queryparsed=id:143154478$$DView record from Swedish Publication Index$$Hfree_for_read</backlink></links><search><creatorcontrib>Verhelst, Pieter-Jan</creatorcontrib><creatorcontrib>Shaheen, Eman</creatorcontrib><creatorcontrib>de Faria Vasconcelos, Karla</creatorcontrib><creatorcontrib>Van der Cruyssen, Fréderic</creatorcontrib><creatorcontrib>Shujaat, Sohaib</creatorcontrib><creatorcontrib>Coudyzer, Walter</creatorcontrib><creatorcontrib>Salmon, Benjamin</creatorcontrib><creatorcontrib>Swennen, Gwen</creatorcontrib><creatorcontrib>Politis, Constantinus</creatorcontrib><creatorcontrib>Jacobs, Reinhilde</creatorcontrib><title>Validation of a 3D CBCT-based protocol for the follow-up of mandibular condyle remodeling</title><title>Dento-maxillo-facial radiology</title><addtitle>Dentomaxillofac Radiol</addtitle><description>Three-dimensional models of mandibular condyles provide a way for condylar remodeling follow-up. The overall aim was to develop and validate a user-friendly workflow for cone beam CT (CBCT)-based semi-automatic condylar registration and segmentation.
A rigid voxel-based registration (VBR) technique for registration of two post-operative CBCT-scans was tested. Two modified mandibular rami, with or without gonial angle, were investigated as the volume of interest for registration. Inter- and intraoperator reproducibility of this technique was tested on 10 mandibular rami of orthognathic patients by means of intraclass correlation coefficients (ICC's) and descriptive statistics of the transformation values from the VBR. The difference in reproducibility between the two modified rami was evaluated using a paired
-test (
< 0.05). For the segmentation, eight fresh frozen cadaver heads were scanned with CBCT and micro-CT. These data were used to test the inter- and intraoperator reproducibility (ICC's) and accuracy (Bland-Altman plot) of a newly designed workflow based on semi-automated contour enhancement.
Excellent ICC's (0.94-0.99) were obtained for the voxel-based registration technique using both modified rami. If the gonial angle was not included in the volume of interest, there was a trend of increased operator error suggested by significant higher interoperator differences in translation values (
= 0,0036). The segmentation workflow proved to be highly reproducible with excellent ICC's (0.99), low absolute mean volume differences between operators (23.19 mm
), within operators (28.93 mm
) and low surface distances between models of different operators (<0.20 mm). Regarding the accuracy, CBCT-models slightly overestimate the condylar volume compared to micro-CT.
This study provides a validated user-friendly and reproducible method of creating three-dimensional-surface models of mandibular condyles out of longitudinal CBCT-scans.</description><subject>Cone-Beam Computed Tomography</subject><subject>Follow-Up Studies</subject><subject>Humans</subject><subject>Imaging, Three-Dimensional</subject><subject>Mandibular Condyle - diagnostic imaging</subject><subject>Mandibular Condyle - surgery</subject><subject>Medicin och hälsovetenskap</subject><subject>Reproducibility of Results</subject><subject>Spiral Cone-Beam Computed Tomography</subject><issn>0250-832X</issn><issn>1476-542X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>D8T</sourceid><recordid>eNp1kUlvFDEQhS0EIkPgyBX5yKWD9-WCBBOWSJFySVA4WW4vSYO7PdjdRPn3eJSZLAdOVSp_75VLD4C3GB1hwvUHP8ZyRBDWiAr2DKwwk6LjjFw-BytEOOoUJZcH4FWtvxBCjHLxEhxQLCSTmq3Azx82Dd7OQ55gjtBCegzXn9fnXW9r8HBT8pxdTjDmAufr0GpK-aZbNlt6tJMf-iXZAl2e_G0KsIQx-5CG6eo1eBFtquHNrh6Ci69fztffu9OzbyfrT6edY5LPXSQM6aCxlqoPMUYkucMECdxLzIRHHvdEaauwU45HHLnClFFqtRZ9sM7RQ9Dd-dabsFl6synDaMutyXYwu9Hv1gXT1mnNGq__y7dz_YNoL8SMYs6YVE378U7bgDF4F6a52PTU4snLNFybq_zXSCQUkrQZvN8ZlPxnCXU241BdSMlOIS_VEIqx4App8XCXK7nWEuL9GozMNnqzjd7so2_8u8d_u6f3WdN_csysrA</recordid><startdate>20200101</startdate><enddate>20200101</enddate><creator>Verhelst, Pieter-Jan</creator><creator>Shaheen, Eman</creator><creator>de Faria Vasconcelos, Karla</creator><creator>Van der Cruyssen, Fréderic</creator><creator>Shujaat, Sohaib</creator><creator>Coudyzer, Walter</creator><creator>Salmon, Benjamin</creator><creator>Swennen, Gwen</creator><creator>Politis, Constantinus</creator><creator>Jacobs, Reinhilde</creator><general>The British Institute of Radiology</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>5PM</scope><scope>ADTPV</scope><scope>AOWAS</scope><scope>D8T</scope><scope>ZZAVC</scope><orcidid>https://orcid.org/0000-0002-2127-441X</orcidid></search><sort><creationdate>20200101</creationdate><title>Validation of a 3D CBCT-based protocol for the follow-up of mandibular condyle remodeling</title><author>Verhelst, Pieter-Jan ; Shaheen, Eman ; de Faria Vasconcelos, Karla ; Van der Cruyssen, Fréderic ; Shujaat, Sohaib ; Coudyzer, Walter ; Salmon, Benjamin ; Swennen, Gwen ; Politis, Constantinus ; Jacobs, Reinhilde</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c475t-f2409e91978befff075c12061b7146d0d1b289a81c8c5f1f5813433a996beacc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Cone-Beam Computed Tomography</topic><topic>Follow-Up Studies</topic><topic>Humans</topic><topic>Imaging, Three-Dimensional</topic><topic>Mandibular Condyle - diagnostic imaging</topic><topic>Mandibular Condyle - surgery</topic><topic>Medicin och hälsovetenskap</topic><topic>Reproducibility of Results</topic><topic>Spiral Cone-Beam Computed Tomography</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Verhelst, Pieter-Jan</creatorcontrib><creatorcontrib>Shaheen, Eman</creatorcontrib><creatorcontrib>de Faria Vasconcelos, Karla</creatorcontrib><creatorcontrib>Van der Cruyssen, Fréderic</creatorcontrib><creatorcontrib>Shujaat, Sohaib</creatorcontrib><creatorcontrib>Coudyzer, Walter</creatorcontrib><creatorcontrib>Salmon, Benjamin</creatorcontrib><creatorcontrib>Swennen, Gwen</creatorcontrib><creatorcontrib>Politis, Constantinus</creatorcontrib><creatorcontrib>Jacobs, Reinhilde</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>SwePub</collection><collection>SwePub Articles</collection><collection>SWEPUB Freely available online</collection><collection>SwePub Articles full text</collection><jtitle>Dento-maxillo-facial radiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Verhelst, Pieter-Jan</au><au>Shaheen, Eman</au><au>de Faria Vasconcelos, Karla</au><au>Van der Cruyssen, Fréderic</au><au>Shujaat, Sohaib</au><au>Coudyzer, Walter</au><au>Salmon, Benjamin</au><au>Swennen, Gwen</au><au>Politis, Constantinus</au><au>Jacobs, Reinhilde</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Validation of a 3D CBCT-based protocol for the follow-up of mandibular condyle remodeling</atitle><jtitle>Dento-maxillo-facial radiology</jtitle><addtitle>Dentomaxillofac Radiol</addtitle><date>2020-01-01</date><risdate>2020</risdate><volume>49</volume><issue>3</issue><spage>20190364</spage><epage>20190364</epage><pages>20190364-20190364</pages><issn>0250-832X</issn><eissn>1476-542X</eissn><abstract>Three-dimensional models of mandibular condyles provide a way for condylar remodeling follow-up. The overall aim was to develop and validate a user-friendly workflow for cone beam CT (CBCT)-based semi-automatic condylar registration and segmentation.
A rigid voxel-based registration (VBR) technique for registration of two post-operative CBCT-scans was tested. Two modified mandibular rami, with or without gonial angle, were investigated as the volume of interest for registration. Inter- and intraoperator reproducibility of this technique was tested on 10 mandibular rami of orthognathic patients by means of intraclass correlation coefficients (ICC's) and descriptive statistics of the transformation values from the VBR. The difference in reproducibility between the two modified rami was evaluated using a paired
-test (
< 0.05). For the segmentation, eight fresh frozen cadaver heads were scanned with CBCT and micro-CT. These data were used to test the inter- and intraoperator reproducibility (ICC's) and accuracy (Bland-Altman plot) of a newly designed workflow based on semi-automated contour enhancement.
Excellent ICC's (0.94-0.99) were obtained for the voxel-based registration technique using both modified rami. If the gonial angle was not included in the volume of interest, there was a trend of increased operator error suggested by significant higher interoperator differences in translation values (
= 0,0036). The segmentation workflow proved to be highly reproducible with excellent ICC's (0.99), low absolute mean volume differences between operators (23.19 mm
), within operators (28.93 mm
) and low surface distances between models of different operators (<0.20 mm). Regarding the accuracy, CBCT-models slightly overestimate the condylar volume compared to micro-CT.
This study provides a validated user-friendly and reproducible method of creating three-dimensional-surface models of mandibular condyles out of longitudinal CBCT-scans.</abstract><cop>England</cop><pub>The British Institute of Radiology</pub><pmid>31674794</pmid><doi>10.1259/dmfr.20190364</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0002-2127-441X</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0250-832X |
| ispartof | Dento-maxillo-facial radiology, 2020-01, Vol.49 (3), p.20190364-20190364 |
| issn | 0250-832X 1476-542X |
| language | eng |
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| source | MEDLINE; SWEPUB Freely available online; Oxford University Press Journals All Titles (1996-Current); EZB-FREE-00999 freely available EZB journals |
| subjects | Cone-Beam Computed Tomography Follow-Up Studies Humans Imaging, Three-Dimensional Mandibular Condyle - diagnostic imaging Mandibular Condyle - surgery Medicin och hälsovetenskap Reproducibility of Results Spiral Cone-Beam Computed Tomography |
| title | Validation of a 3D CBCT-based protocol for the follow-up of mandibular condyle remodeling |
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