Cranial sutures and craniometric points detected on MRI |
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Authors: | François Cotton Fernando Ramirez Rozzi Bernard Vallee Chahin Pachai Marc Hermier Anne-Marie Guihard-Costa Jean-Claude Froment |
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Affiliation: | (1) Laboratoire dAnatomie de lUFR Laennec, Rue Guillaume Paradin, 69312 Lyon Cedex 08, France;(2) Service de Radiologie, Centre Hospitalier Lyon Sud, 69495 Pierre Bénite Cedex, France;(3) CREATIS, INSA-502, 69621 Villeurbanne Cedex, France;(4) UPR 2147 du CNRS, Dynamique de lévolution humaine Individus, Populations, Espèces , 44 rue de ladmiral Mouchez, 75014 Paris, France;(5) Service de Neurochirurgie, Hôpital Neurologique et Neurochirurgical Pierre Wertheimer, 59 Boulevard Pinel, 69003 Lyon, France;(6) THERALYS, 3 allée Pierre de Coubertin, 69007 Lyon, France;(7) Service de Radiologie, Hôpital Neurologique et Neurochirurgical Pierre Wertheimer, 59 Boulevard Pinel, 69003 Lyon, France |
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Abstract: | The main goal of the study was to determine on MRI the cranial sutures, the craniometric points and craniometric measurements, and to correlate these results with classical anthropometric measurements. For this purpose, we reviewed 150 cerebral MRI examinations considered as normal (Caucasian population aged 2049 years). For each examination we individualized 11 craniometric landmarks (Glabella, Bregma, Lambda, Opisthocranion, Opisthion, Basion, Inion, Porion, Infra-orbital, Eurion) and three measurements. Measurements were also calculated independently on 498 dry crania (Microscribe 3-DX digitizer). To validate the MRI procedure, we measured four dry crania by MRI and with compass or digital caliper gauges. Cranial sutures always appeared without signal (black), whatever the MRI sequence used, and they are better visualized with a 5 mm slice thickness (compact bone overlapping). Slice dynamic analysis and multiplanar reformatting allowed the detection of all craniometric points, some of these being more difficult to detect than others (Porion, Infra-orbital). The measurements determined by these points were as follows: VertexBasion height=135.66±6.56 mm; EurionEurion width=141.17±5.19 mm; GlabellaOpisthocranion length=181.94±6.40 mm. On the midline T1-weighted sagittal image, all median craniometric landmarks can be individualized and the GlabellaOpisthocranion length, VertexBasion height and parenchyma indices can be calculated. Craniometric points and measurements between these points can be estimated with a standard cerebral MRI examination, with results that are similar to anthropometric data. |
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Keywords: | MRI Craniometry Skull Cranial sutures Neuroanatomy |
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