Barrier Pierre, Dedouit Fabrice, Braga José, Joffre Francis, Rougé Daniel, Rousseau Hervé, Telmon Norbert
Service de Radiologie Générale, Hôpital de Rangueil, Avenue du Professeur Jean Poulhès, 31403 Toulouse Cedex 4, France.
J Forensic Sci. 2009 Jul;54(4):773-8. doi: 10.1111/j.1556-4029.2009.01074.x. Epub 2009 May 26.
Thanks to recent advances, computed tomography is now seen as a tool of great value in the field of physical anthropology. In this study, we focused on the posterior pelvis and the auricular surface and evaluated the accuracy of 3D reconstructions of the auricular surface, using a methodology derived from a previous study by Lovejoy et al. We also looked for trabecular bone criteria expressing age-related changes. Forty-six coxal bones were scanned, and scoring of macroscopic criteria showed a good agreement between 3D reconstructions and photographs, especially for transverse organization (k = 0.90). The changes occurring in the posterior part of the sacropubic trabecular bundle were evaluated on CT reconstructions via three new criteria, which exhibited a good intra- and inter-observer agreement (k = 0.77-0.89), and were particularly useful in identifying older subjects. We concluded that these CT-evaluated trabecular bone criteria are promising and yield useful information about age at death.
得益于最近的进展，计算机断层扫描现在被视为体质人类学领域极具价值的工具。在本研究中，我们聚焦于骨盆后部和耳状面，并使用洛夫乔伊等人先前研究中衍生出的方法，评估了耳状面三维重建的准确性。我们还寻找了表达年龄相关变化的小梁骨标准。对46块髋骨进行了扫描，宏观标准评分显示三维重建与照片之间具有良好的一致性，尤其是在横向组织方面（κ = 0.90）。通过三个新的标准在CT重建上评估耻骨小梁束后部发生的变化，这些标准在观察者内和观察者间均表现出良好的一致性（κ = 0.77 - 0.89），并且在识别老年受试者方面特别有用。我们得出结论，这些经CT评估的小梁骨标准很有前景，能提供有关死亡年龄的有用信息。
