Reliability of Different Anterior Cranial Base Reference Areas for Voxel-Based Superimposition

The study aimed to evaluate the reliability and reproducibility and compare the outcomes of two 3D voxel-based superimposition techniques for craniofacial CBCT images, using anterior cranial base areas of different extent as references. Fifteen preexisting pairs of serial CBCTs (initial age: 11.7 ±...

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Main Authors: Mohammed Ghamri, Georgios Kanavakis, Nikolaos Gkantidis
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Journal of Clinical Medicine
Subjects:
Online Access:https://www.mdpi.com/2077-0383/10/22/5429
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author Mohammed Ghamri
Georgios Kanavakis
Nikolaos Gkantidis
author_facet Mohammed Ghamri
Georgios Kanavakis
Nikolaos Gkantidis
author_sort Mohammed Ghamri
collection DOAJ
description The study aimed to evaluate the reliability and reproducibility and compare the outcomes of two 3D voxel-based superimposition techniques for craniofacial CBCT images, using anterior cranial base areas of different extent as references. Fifteen preexisting pairs of serial CBCTs (initial age: 11.7 ± 0.6 years; interval: 1.7 ± 0.4 years) were superimposed on total anterior cranial base (TACB) or middle anterior cranial base (MACB) structures through the Dolphin 3D software. The overlap of the reference structures was assessed visually to indicate reliability. All superimpositions were repeated by the same investigator. Outcomes were compared to assess the agreement between the two methods. Reliability was perfect for the TACB and moderate for the MACB method (<i>p</i> = 0.044). Both areas showed good overall reproducibility, though in individual cases there were notable differences for MACB superimpositions, ranging from −1.84 to 1.64 mm (TACB range: −0.48 to 0.31 mm). The overall agreement in the detected T0/T1 changes was also good, though it was significantly reduced for individual measurements (median < 0.01 mm, IQR: 0.46 mm, range: −2.81 to 0.73 mm). In conclusion, the voxel-based superimposition on TACB was more reliable and showed higher reproducibility than the superimposition on MACB. Thus, the extended anterior cranial base area is recommended for the assessment of craniofacial changes.
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spelling doaj.art-7af62481a5c6450d810497cc3f0008c32023-11-22T23:51:17ZengMDPI AGJournal of Clinical Medicine2077-03832021-11-011022542910.3390/jcm10225429Reliability of Different Anterior Cranial Base Reference Areas for Voxel-Based SuperimpositionMohammed Ghamri0Georgios Kanavakis1Nikolaos Gkantidis2Department of Orthodontics and Dentofacial Orthopedics, University of Bern, 3010 Bern, SwitzerlandDepartment of Pediatric Oral Health and Orthodontics, UZB-University Center for Dental Medicine, University of Basel, 4058 Basel, SwitzerlandDepartment of Orthodontics and Dentofacial Orthopedics, University of Bern, 3010 Bern, SwitzerlandThe study aimed to evaluate the reliability and reproducibility and compare the outcomes of two 3D voxel-based superimposition techniques for craniofacial CBCT images, using anterior cranial base areas of different extent as references. Fifteen preexisting pairs of serial CBCTs (initial age: 11.7 ± 0.6 years; interval: 1.7 ± 0.4 years) were superimposed on total anterior cranial base (TACB) or middle anterior cranial base (MACB) structures through the Dolphin 3D software. The overlap of the reference structures was assessed visually to indicate reliability. All superimpositions were repeated by the same investigator. Outcomes were compared to assess the agreement between the two methods. Reliability was perfect for the TACB and moderate for the MACB method (<i>p</i> = 0.044). Both areas showed good overall reproducibility, though in individual cases there were notable differences for MACB superimpositions, ranging from −1.84 to 1.64 mm (TACB range: −0.48 to 0.31 mm). The overall agreement in the detected T0/T1 changes was also good, though it was significantly reduced for individual measurements (median < 0.01 mm, IQR: 0.46 mm, range: −2.81 to 0.73 mm). In conclusion, the voxel-based superimposition on TACB was more reliable and showed higher reproducibility than the superimposition on MACB. Thus, the extended anterior cranial base area is recommended for the assessment of craniofacial changes.https://www.mdpi.com/2077-0383/10/22/5429imagingthree-dimensionalcone-beam computed tomographyvoxel-based superimpositionanterior cranial base
spellingShingle Mohammed Ghamri
Georgios Kanavakis
Nikolaos Gkantidis
Reliability of Different Anterior Cranial Base Reference Areas for Voxel-Based Superimposition
Journal of Clinical Medicine
imaging
three-dimensional
cone-beam computed tomography
voxel-based superimposition
anterior cranial base
title Reliability of Different Anterior Cranial Base Reference Areas for Voxel-Based Superimposition
title_full Reliability of Different Anterior Cranial Base Reference Areas for Voxel-Based Superimposition
title_fullStr Reliability of Different Anterior Cranial Base Reference Areas for Voxel-Based Superimposition
title_full_unstemmed Reliability of Different Anterior Cranial Base Reference Areas for Voxel-Based Superimposition
title_short Reliability of Different Anterior Cranial Base Reference Areas for Voxel-Based Superimposition
title_sort reliability of different anterior cranial base reference areas for voxel based superimposition
topic imaging
three-dimensional
cone-beam computed tomography
voxel-based superimposition
anterior cranial base
url https://www.mdpi.com/2077-0383/10/22/5429
work_keys_str_mv AT mohammedghamri reliabilityofdifferentanteriorcranialbasereferenceareasforvoxelbasedsuperimposition
AT georgioskanavakis reliabilityofdifferentanteriorcranialbasereferenceareasforvoxelbasedsuperimposition
AT nikolaosgkantidis reliabilityofdifferentanteriorcranialbasereferenceareasforvoxelbasedsuperimposition