Sexual Dimorphism of the Fetal Ilium: A 3D Geometric Morphometric Approach with Multislice Computed Tomography†
Corresponding Author
Fatima-Zohra Mokrane M.R.
Laboratoire d'Anthropobiologie Médicale et Imagerie de Synthèse AMIS, UMR 5288 CNRS, Université Paul Sabatier, 37allées Jules Guesde, 31000 Toulouse, France
Service de Radiologie, Centre Hospitalier Universitaire Rangueil, Avenue du Professeur Jean Poulhès, 31403 Toulouse Cedex 4, France
Additional information and reprint requests:
Fatima-Zohra Mokrane, M.R.
Service de radiologie
CHU Rangueil
1, avenue du Professeur Jean Poulhès
TSA 50032
31059 Toulouse Cedex 9
France
E-mail: [email protected]
Search for more papers by this authorFabrice Dedouit M.D., Ph.D.
Service de Radiologie, Centre Hospitalier Universitaire Rangueil, Avenue du Professeur Jean Poulhès, 31403 Toulouse Cedex 4, France
Service de Médecine Légale, Centre Hospitalier Universitaire Rangueil, Avenue du Professeur Jean Poulhès, 31403 Toulouse Cedex 4, France
Search for more papers by this authorStéphane Gellée M.R.
Laboratoire d'Anthropobiologie Médicale et Imagerie de Synthèse AMIS, UMR 5288 CNRS, Université Paul Sabatier, 37allées Jules Guesde, 31000 Toulouse, France
Service de Radiologie, Centre Hospitalier Universitaire Purpan, Place Baylac, 31000 Toulouse, France
Search for more papers by this authorNicolas Sans M.D., Ph.D.
Service de Radiologie, Centre Hospitalier Universitaire Purpan, Place Baylac, 31000 Toulouse, France
Search for more papers by this authorHervé Rousseau M.D., Ph.D.
Service de Radiologie, Centre Hospitalier Universitaire Rangueil, Avenue du Professeur Jean Poulhès, 31403 Toulouse Cedex 4, France
Search for more papers by this authorDaniel Rougé M.D., Ph.D.
Service de Médecine Légale, Centre Hospitalier Universitaire Rangueil, Avenue du Professeur Jean Poulhès, 31403 Toulouse Cedex 4, France
Search for more papers by this authorNorbert Telmon M.D., Ph.D.
Service de Médecine Légale, Centre Hospitalier Universitaire Rangueil, Avenue du Professeur Jean Poulhès, 31403 Toulouse Cedex 4, France
Search for more papers by this authorCorresponding Author
Fatima-Zohra Mokrane M.R.
Laboratoire d'Anthropobiologie Médicale et Imagerie de Synthèse AMIS, UMR 5288 CNRS, Université Paul Sabatier, 37allées Jules Guesde, 31000 Toulouse, France
Service de Radiologie, Centre Hospitalier Universitaire Rangueil, Avenue du Professeur Jean Poulhès, 31403 Toulouse Cedex 4, France
Additional information and reprint requests:
Fatima-Zohra Mokrane, M.R.
Service de radiologie
CHU Rangueil
1, avenue du Professeur Jean Poulhès
TSA 50032
31059 Toulouse Cedex 9
France
E-mail: [email protected]
Search for more papers by this authorFabrice Dedouit M.D., Ph.D.
Service de Radiologie, Centre Hospitalier Universitaire Rangueil, Avenue du Professeur Jean Poulhès, 31403 Toulouse Cedex 4, France
Service de Médecine Légale, Centre Hospitalier Universitaire Rangueil, Avenue du Professeur Jean Poulhès, 31403 Toulouse Cedex 4, France
Search for more papers by this authorStéphane Gellée M.R.
Laboratoire d'Anthropobiologie Médicale et Imagerie de Synthèse AMIS, UMR 5288 CNRS, Université Paul Sabatier, 37allées Jules Guesde, 31000 Toulouse, France
Service de Radiologie, Centre Hospitalier Universitaire Purpan, Place Baylac, 31000 Toulouse, France
Search for more papers by this authorNicolas Sans M.D., Ph.D.
Service de Radiologie, Centre Hospitalier Universitaire Purpan, Place Baylac, 31000 Toulouse, France
Search for more papers by this authorHervé Rousseau M.D., Ph.D.
Service de Radiologie, Centre Hospitalier Universitaire Rangueil, Avenue du Professeur Jean Poulhès, 31403 Toulouse Cedex 4, France
Search for more papers by this authorDaniel Rougé M.D., Ph.D.
Service de Médecine Légale, Centre Hospitalier Universitaire Rangueil, Avenue du Professeur Jean Poulhès, 31403 Toulouse Cedex 4, France
Search for more papers by this authorNorbert Telmon M.D., Ph.D.
Service de Médecine Légale, Centre Hospitalier Universitaire Rangueil, Avenue du Professeur Jean Poulhès, 31403 Toulouse Cedex 4, France
Search for more papers by this authorAbstract
Adult sexual dimorphism is well established. However, data regarding fetuses are sparse with contradictory results. Our study aimed to look for fetal sexual dimorphism. Multislice computed tomography (MSCT) examinations and three-dimensional (3D) reconstructions were recorded on 93 fetal iliac bones aged between 21 and 40 weeks of amenorrhea (WA). The collection was divided into two age groups, with a cutoff at 30 WA. The 3D geometric morphometric analysis was based on outline analysis. We used elliptic Fourier analysis (EFA) because of the difficulty of landmark positioning. Step-by-step reconstructions allowed a better comprehension of the fine shape details. Principal component analysis (PCA) and linear discriminant analysis (LDA) were performed on the two age groups. Results did not show any difference between male and female shapes, in both age groups. We demonstrate the feasibility of outline analysis for immature shapes, but sexual dimorphism has not been established in our collection.
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