分析三维面部形态:欧洲和南非人口亲缘关系、性别、年龄和异体测量比较研究的启示

IF 2.2 3区 医学 Q1 MEDICINE, LEGAL
Thandolwethu Mbali Mbonani, Ericka Noelle L’Abbé, Alison Fany Ridel
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引用次数: 0

摘要

不同的生长模式和多因素机制造成了面部形态的差异。这些面部形态上的差异给颅面重建带来了挑战。三维(3D)成像模式是研究这些差异的宝贵资源。在这项研究中,我们使用几何形态计量学方法评估了法国人和南非白人样本中的人群亲缘关系、性别、年龄和异体测量对面部软硬组织形态矩阵的变化和协变的影响。我们分别对南非白人和法国人进行了 76 次和 108 次锥形束计算机断层扫描。使用 MeVisLab© v. 2.7.1 软件提取了三维解剖结构(硬组织和软组织矩阵),对 43 个颅骨标志、50 个帽状标志和 559 个滑动标志进行了密集标记。几何形态计量分析用于量化因人群亲缘关系、性别、年龄和异体测量而产生的形状差异,并评估硬组织结构与面部软组织之间的协变关系。面部硬组织和软组织矩阵受种群差异、性别二形性和衰老的影响。与性别和年龄相比,人口亲缘关系对变异的影响最大。在法国人中,除眼睛和左外耳道(EAM)外,所有软硬组织基质都具有性别二态性。在南非白人中,口腔、中面部和左外耳道出现了性别二态性。在特定年龄组还观察到明显的形状差异。在南非白人中,下颅骨和上覆软组织与鼻子和前鼻孔密切相关(相关性,r2-PLS = 0.976),其次是右耳和右 EAM(r2-PLS = 0.875)以及左耳和左 EAM(r2-PLS = 0.871)。对于法国人,观察到的相关性相对较弱到中等,矩阵之间的协变不显著,但右耳和右 EAM 之间的相关性除外(r2-PLS = 0.499)。在两种人群中,口腔与中面部矩阵之间的协方差最小(南非人:r2-PLS = 0.464;法国人:r2-PLS = 0.367),但也不显著。这项研究表明,三维成像技术和几何形态计量学方法可以准确量化和直观显示面部形态差异。这些方法还可以评估头骨结构与面部软特征之间的关联。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analyzing 3D facial morphology: Insights from a comparative European and South African study on population affinity, sex, age, and allometry
Variable growth patterns and multifactorial mechanisms cause variation in facial shape. These differences in facial morphology pose challenges for craniofacial reconstruction. Three-dimensional (3D) imaging modalities are a valuable resource for examining these variations. In this study, we used geometric morphometric methods to evaluate the effects of population affinity, sex, age, and allometry on the variation and covariation of hard and soft tissue facial morphology matrices in a sample of French and white South African individuals. Seventy-six and 108 cone-beam computed tomography scans of white South African and French nationals, respectively, were retrospectively acquired. Three-dimensional anatomical structures (hard and soft tissue matrices) were extracted using MeVisLab© v. 2.7.1 software for dense landmarking of 43 craniometric, 50 capulometric, and 559 sliding landmarks. Geometric morphometric analyses were used to quantify shape differences attributed to population affinity, sex, age, and allometry and assess the covariation between hard tissue structures and soft facial tissues. Hard and soft tissue facial matrices were influenced by population differences, sexual dimorphism, and aging. Compared to sex and age, population affinity had the strongest influence on variation. In French individuals, all hard and soft tissue matrices were sexually dimorphic, except for the eyes and left external auditory meatus (EAM). In white South Africans, sexual dimorphism was observed for the mouth, midface, and left EAM. Significant shape differences were also observed for specific age groups. The underlying skull and overlying soft tissues were strongly associated with the nose and anterior nasal aperture (correlation, r2-PLS = 0.976), followed by the right ear and right EAM (r2-PLS = 0.875) and the left ear and left EAM (r2-PLS = 0.871) in white South Africans. For French individuals, relatively weak to moderate correlations were observed, and the covariation between matrices was nonsignificant, except for the association between the right ear and right EAM (r2-PLS = 0.499). The smallest covariation was observed between the mouth and midfacial matrix in both populations (South African: r2-PLS = 0.464; French: r2-PLS = 0.367), which was also nonsignificant. This study revealed that 3D imaging technology and geometric morphometric methods can accurately quantify and visualize facial morphology differences. These methods can also evaluate the association between skull structure and soft facial features.
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来源期刊
Forensic science international
Forensic science international 医学-医学:法
CiteScore
5.00
自引率
9.10%
发文量
285
审稿时长
49 days
期刊介绍: Forensic Science International is the flagship journal in the prestigious Forensic Science International family, publishing the most innovative, cutting-edge, and influential contributions across the forensic sciences. Fields include: forensic pathology and histochemistry, chemistry, biochemistry and toxicology, biology, serology, odontology, psychiatry, anthropology, digital forensics, the physical sciences, firearms, and document examination, as well as investigations of value to public health in its broadest sense, and the important marginal area where science and medicine interact with the law. The journal publishes: Case Reports Commentaries Letters to the Editor Original Research Papers (Regular Papers) Rapid Communications Review Articles Technical Notes.
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