The Variation in 3D Face Shapes of Dutch Children for Mask Design

Goto, Lyè; Lee, Wonsup; Huysmans, Toon; Molenbroek, J.F.M.; Goossens, Richard

doi:10.3390/app11156843

Cited by 13 publications

(7 citation statements)

References 37 publications

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“…HBM-Rugle incorporates mHBM software and has additional functions for user convenience, including setting coordinate systems and size adjustment of input data. The robustness of the fitting accuracy of this software has been verified in several studies 52,[54][55][56][57][58][59][60] .…”

Section: Methodsmentioning

confidence: 84%

“…By analyzing the coordinate values of the vertices that make up the mesh models using a multivariate analysis method, such as principal component analysis (PCA), variations in the entire surface shape can be analyzed, and virtual shapes at arbitrary positions in the distribution can be calculated and visualized 53 . Nowadays, mesh models created using template fitting have been widely used for shape analyses in various fields 52,[54][55][56][57][58][59][60] .…”

mentioning

confidence: 99%

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Global patterns of the cranial form of modern human populations described by analysis of a 3D surface homologous model

Matsumura

Tanijiri²,

Kouchi

et al. 2022

Sci Rep

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This study assessed the regional diversity of the human cranial form by using geometric homologous models based on scanned data from 148 ethnic groups worldwide. This method adopted a template-fitting technique for a nonrigid transformation via the iterative closest point algorithm to generate the homologous meshes. Through the application of principal component analysis to 342 sampled homologous models, the largest variation was detected in overall size, and small South Asian crania were clearly verified. The next greatest diversity was found in the length/breadth proportion of the neurocranium, which showed the contrast between the elongated crania of Africans and the globular crania of Northeast Asians. Notably, this component was slightly correlated with the facial profile. Well-known facial features, such as the forward projection of the cheek among Northeast Asians and compaction of the European maxilla, were reconfirmed. These facial variations were highly correlated with the calvarial outline, particularly the degree of frontal and occipital inclines. An allometric pattern was detected in facial proportions in relation to overall cranial size; in larger crania, the facial profiles tend to be longer and narrower, as demonstrated among many American natives and Northeast Asians. Although our study did not include data on environmental variables that are likely to affect cranial morphology, such as climate or dietary conditions, the large datasets of homologous cranial models will be usefully available for seeking various attributions to phenotypic skeletal characteristics.

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Section: Methodsmentioning

confidence: 84%

mentioning

confidence: 99%

Global patterns of the cranial form of modern human populations described by analysis of a 3D surface homologous model

Matsumura

Tanijiri²,

Kouchi

et al. 2022

Sci Rep

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show abstract

“…The main parts of this software were originally developed at the Digital Human Research Center of the National Institute of Advanced Industrial Science and Technology [18]. The robustness of the fitting accuracy of this software has been verified in several studies [19–26].…”

Section: Methodsmentioning

confidence: 99%

Specific pelvic shape in patients with developmental dysplasia of the hip on 3D morphometric homologous model analysis

Sasaki,

Suzuki,

Tokita

et al. 2024

Preprint

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PurposeTo clarify the morphological factors of the pelvis in patients with developmental dysplasia of the hip (DDH), three-dimensional (3D) pelvic morphology was analyzed using a template-fitting technique.MethodsThree-dimensional pelvic data of 50 patients with DDH (DDH group) and 3D pelvic data of 50 patients without obvious pelvic deformity (Normal group) were used. All patients were female. A template model was created by averaging the normal pelvises into a symmetrical and isotropic mesh. Next, 100 homologous models were generated by fitting the pelvic data of each group of patients to the template model. Principal component analysis was performed on the coordinates of each vertex (15,235 vertices) of the pelvic homologous model. In addition, a receiver-operating characteristic (ROC) curve was calculated from the sensitivity of DDH positivity for each principal component, and principal components for which the area under the curve was significantly large were extracted (p<0.05). Finally, which components of the pelvic morphology frequently seen in DDH patients are related to these extracted principal components was evaluated.ResultsThe first, third, and sixth principal components showed significantly larger areas under the ROC curves. The morphology indicated by the first principal component was associated with a decrease in coxal inclination in both the coronal and horizontal planes. The third principal component was related to the sacral inclination in the sagittal plane. The sixth principal component was associated with narrowing of the superior part of the pelvis.ConclusionThe most important factor in the difference between normal and DDH pelvises was the change in the coxal angle in both the coronal and horizontal planes. That is, in the anterior and superior views, the normal pelvis is a triangle, whereas in DDH, it was more like a quadrilateral.

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“…To create a setting for simulation of interface fitting and placement, and NIV in children, a 3D-printed pediatric head–lung model was developed. For the design of the model as used in this study, we obtained the 3D anthropometric data from the open-source database DINED ( http://dined.io.tudelft.nl ) ( 23 ), comprising a principal component analysis and regression model between age and the 3D head and face shape of 302 Dutch children ( 14 ), to create an enriched statistical shape model (SSM) of a 1-year old child (mean age: 12.3 ± 2.9 months) with the following dimensions: a sellion-promentale length of 66.8 ± 4.6 mm, a mouth width of 33.5 ± 4.0 mm, a nose width of 25.4 ± 1.3 mm, and a nose length of 27.5 ± 1.6 mm. The 3D-printed pediatric head–lung model consists of a hard and sturdy interior, surrounded by a soft silicone layer that mimics human skin.…”

Section: Methodsmentioning

confidence: 99%

Reduced Air Leakage During Non-Invasive Ventilation Using a Simple Anesthetic Mask With 3D-Printed Adaptor in an Anthropometric Based Pediatric Head–Lung Model

et al. 2022

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Non-invasive ventilation (NIV) is increasingly used in the support of acute respiratory failure in critically ill children admitted to the pediatric intensive care unit (PICU). One of the major challenges in pediatric NIV is finding an optimal fitting mask that limits air leakage, in particular for young children and those with specific facial features. Here, we describe the development of a pediatric head–lung model, based on 3D anthropometric data, to simulate pediatric NIV in a 1-year-old child, which can serve as a tool to investigate the effectiveness of NIV masks. Using this model, the primary aim of this study was to determine the extent of air leakage during NIV with our recently described simple anesthetic mask with a 3D-printed quick-release adaptor, as compared with a commercially available pediatric NIV mask. The simple anesthetic mask provided a better seal resulting in lower air leakage at various positive pressure levels as compared with the commercial mask. These data further support the use of the simple anesthetic mask as a reasonable alternative during pediatric NIV in the acute setting. Moreover, the pediatric head–lung model provides a promising tool to study the applicability and effectiveness of customized pediatric NIV masks in the future.

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The Variation in 3D Face Shapes of Dutch Children for Mask Design

Cited by 13 publications

References 37 publications

Global patterns of the cranial form of modern human populations described by analysis of a 3D surface homologous model

Global patterns of the cranial form of modern human populations described by analysis of a 3D surface homologous model

Specific pelvic shape in patients with developmental dysplasia of the hip on 3D morphometric homologous model analysis

Reduced Air Leakage During Non-Invasive Ventilation Using a Simple Anesthetic Mask With 3D-Printed Adaptor in an Anthropometric Based Pediatric Head–Lung Model

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