Ontogeny of cranial base during the first two years of life
| Autor: | Lucile Tuchtan, Marie-Dominique Piercecchi, Clémence Delteil, A. Carballeira Alvarez, C. Mopin, Pascal Adalian |
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| Přispěvatelé: | Anthropologie bio-culturelle, Droit, Ethique et Santé (ADES), Aix Marseille Université (AMU)-EFS ALPES MEDITERRANEE-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2022 |
| Předmět: |
Male
0106 biological sciences Cephalometry Ontogeny [SHS.ANTHRO-BIO]Humanities and Social Sciences/Biological anthropology Population Posterior fossa Biology 010603 evolutionary biology 01 natural sciences 03 medical and health sciences Sphenoid Bone Humans Superimposition Base (exponentiation) education ComputingMilieux_MISCELLANEOUS 030304 developmental biology Skull Base 0303 health sciences education.field_of_study Skull Infant Newborn Brain Infant Anatomy Head circumference Principal component analysis Allometry Tomography X-Ray Computed |
| Zdroj: | Morphologie Morphologie, Elsevier Masson, 2021, ⟨10.1016/j.morpho.2021.03.006⟩ Morphologie, 2021, ⟨10.1016/j.morpho.2021.03.006⟩ |
| ISSN: | 1286-0115 |
| DOI: | 10.1016/j.morpho.2021.03.006 |
| Popis: | Summary The integration of the growth of the brain and the cranial base suggests that each system may influence the other, notably during the first three years of life, although this influence has never been proven to be exclusive. The aim of our work was to analyse the dynamics of normal growth on the one hand, and the development and ontogenetic allometry of the cranial base in the infant on the other hand. Material and method A total of 32 infants (17 males/15 femeles) having been included in the unexpected infant death french protocol were analyzed. Three-dimensional reconstructions of the cranial base were performed from CT scans. The technique combined manual segmentation of regions of interest, contour extraction and surface reconstruction. Nineteen landmarks were positioned on each of the bone surfaces. Results No correlation was observed between sex assigned at birth and shape, weight, crown-heel length, or head circumference. Principal component analysis showed that 85.5% of the variance observed on the first component was secondary to growth. After Procrustes superimposition, 25% of the shape variance observed was explained by the first principal component. It showed anteroposterior lengthening of the cranial base. In addition, the height, width and length of the posterior fossa increased and the relative position of the basion was displaced inferiorly and anteriorly with flexion of the sphenoid angle. Negative allometry was also observed. Conclusion Our study, carried out in a rigorously selected population of infants, presents a fundamental approach to ontogeny through study of shape, growth and ontogenetic allometry. |
| Databáze: | OpenAIRE |
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