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Validity and reproducibility of the 3D VECTRA photogrammetric surface imaging system for the maxillofacial anthropometric measurement on cleft patients

Objectives: To validate the accuracy and reproducibility of linear measurements of three-dimensional (3D) images and to compare the measurements with the direct anthropometry method on cleft lip and palate (CLP) patients. Materials and methods: Nineteen linear facial measurements were derived from 1...

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Main Authors: Othman, Siti Adibah, Saffai, Lyddia, Wan Hassan, Wan Nurazreena
Format: Article
Published: Springer 2020
Subjects:
RK Dentistry
Online Access:http://eprints.um.edu.my/25440/
https://doi.org/10.1007/s00784-019-03150-1
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spelling my.um.eprints.254402020-08-25T04:06:26Z http://eprints.um.edu.my/25440/ Validity and reproducibility of the 3D VECTRA photogrammetric surface imaging system for the maxillofacial anthropometric measurement on cleft patients Othman, Siti Adibah Saffai, Lyddia Wan Hassan, Wan Nurazreena RK Dentistry Objectives: To validate the accuracy and reproducibility of linear measurements of three-dimensional (3D) images and to compare the measurements with the direct anthropometry method on cleft lip and palate (CLP) patients. Materials and methods: Nineteen linear facial measurements were derived from 16 standardized surface landmarks obtained from 37 cleft patients (20 males, 17 females; mean age 23.84 years, standard deviation ± 6.02). They were taken manually with calipers and were compared with the digitally calculated distance on the 3D images captured using the VECTRA-M5 360° Imaging System with pre-marked landmarks. Another pair of 19 linear measurements were computed on the 3D images 2 weeks apart for intra- and inter-observer agreements. Statistical analyses used were paired t test, the Bland-Altman analysis, and the intra-class correlation coefficient (ICC) index. Results: Most of the linear measurements showed no statistically significant differences between the proposed method and direct anthropometry linear measurements. Nevertheless, bias of the 3D imaging system is present in the linear measurements of the nose width and the upper vermillion height. The measurements’ mean biases were within 2 mm, but the 95% limit of agreement was more than 2 mm. Intra- and inter-observer measurements generally showed good reproducibility. Four inter-observer measurements, the upper and lower face heights, nose width, and pronasale to left alar base were clinically significant. Conclusions: Measurements obtained from this 3D imaging system are valid and reproducible for evaluating CLP patients. Clinical relevance: The system is suitable to be used in a clinical setting for cleft patients. However, training of the operator is strictly advisable. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature. Springer 2020 Article PeerReviewed Othman, Siti Adibah and Saffai, Lyddia and Wan Hassan, Wan Nurazreena (2020) Validity and reproducibility of the 3D VECTRA photogrammetric surface imaging system for the maxillofacial anthropometric measurement on cleft patients. Clinical Oral Investigations, 24 (8). pp. 2853-2866. ISSN 1432-6981 https://doi.org/10.1007/s00784-019-03150-1 doi:10.1007/s00784-019-03150-1
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic RK Dentistry
spellingShingle RK Dentistry
Othman, Siti Adibah
Saffai, Lyddia
Wan Hassan, Wan Nurazreena
Validity and reproducibility of the 3D VECTRA photogrammetric surface imaging system for the maxillofacial anthropometric measurement on cleft patients
description Objectives: To validate the accuracy and reproducibility of linear measurements of three-dimensional (3D) images and to compare the measurements with the direct anthropometry method on cleft lip and palate (CLP) patients. Materials and methods: Nineteen linear facial measurements were derived from 16 standardized surface landmarks obtained from 37 cleft patients (20 males, 17 females; mean age 23.84 years, standard deviation ± 6.02). They were taken manually with calipers and were compared with the digitally calculated distance on the 3D images captured using the VECTRA-M5 360° Imaging System with pre-marked landmarks. Another pair of 19 linear measurements were computed on the 3D images 2 weeks apart for intra- and inter-observer agreements. Statistical analyses used were paired t test, the Bland-Altman analysis, and the intra-class correlation coefficient (ICC) index. Results: Most of the linear measurements showed no statistically significant differences between the proposed method and direct anthropometry linear measurements. Nevertheless, bias of the 3D imaging system is present in the linear measurements of the nose width and the upper vermillion height. The measurements’ mean biases were within 2 mm, but the 95% limit of agreement was more than 2 mm. Intra- and inter-observer measurements generally showed good reproducibility. Four inter-observer measurements, the upper and lower face heights, nose width, and pronasale to left alar base were clinically significant. Conclusions: Measurements obtained from this 3D imaging system are valid and reproducible for evaluating CLP patients. Clinical relevance: The system is suitable to be used in a clinical setting for cleft patients. However, training of the operator is strictly advisable. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
format Article
author Othman, Siti Adibah
Saffai, Lyddia
Wan Hassan, Wan Nurazreena
author_facet Othman, Siti Adibah
Saffai, Lyddia
Wan Hassan, Wan Nurazreena
author_sort Othman, Siti Adibah
title Validity and reproducibility of the 3D VECTRA photogrammetric surface imaging system for the maxillofacial anthropometric measurement on cleft patients
title_short Validity and reproducibility of the 3D VECTRA photogrammetric surface imaging system for the maxillofacial anthropometric measurement on cleft patients
title_full Validity and reproducibility of the 3D VECTRA photogrammetric surface imaging system for the maxillofacial anthropometric measurement on cleft patients
title_fullStr Validity and reproducibility of the 3D VECTRA photogrammetric surface imaging system for the maxillofacial anthropometric measurement on cleft patients
title_full_unstemmed Validity and reproducibility of the 3D VECTRA photogrammetric surface imaging system for the maxillofacial anthropometric measurement on cleft patients
title_sort validity and reproducibility of the 3d vectra photogrammetric surface imaging system for the maxillofacial anthropometric measurement on cleft patients
publisher Springer
publishDate 2020
url http://eprints.um.edu.my/25440/
https://doi.org/10.1007/s00784-019-03150-1
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score 13.211869

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