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相关概念视频

Anatomy of the Ear01:16

Anatomy of the Ear

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Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...
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相关实验视频

Updated: Apr 24, 2026

Measurement of Dynamic Scapular Kinematics Using an Acromion Marker Cluster to Minimize Skin Movement Artifact
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人类耳朵不对称:使用基于地标和基于表面的软件进行比较研究.

Yangyang Lin1,2,3,4, Johannes G G Dobbe5,6, Nadia Lachkar2

  • 1Department of Plastic Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P.R. China.

The Journal of craniofacial surgery
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概括
此摘要是机器生成的。

人的耳朵在个体层面上不对称,尽管有群体层面的对称性. 高精度的自动测量在74-100%的病例中显示出显著的双边差异,与手工方法不同.

关键词:
耳朵的对称性 耳朵对称性自动化测量自动化测量两国之间的差异是双边差异.耳朵的重建 耳朵的重建高精度技术的高精度技术.手动测量的手动测量基于表面的测量测量.

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Dissection, MicroCT Scanning and Morphometric Analyses of the Baculum
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Dissection, MicroCT Scanning and Morphometric Analyses of the Baculum

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Author Spotlight: Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans
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科学领域:

  • 医疗成像医学成像
  • 人类测量学 人类测量学.
  • 整形外科 整形外科 整形外科

背景情况:

  • 反侧耳环经常被用作耳朵重建结果的参考.
  • 之前的研究表明,耳朵在群体层面上表现出对称性.
  • 个人层面的耳环对称性在很大程度上仍未得到量化.

研究的目的:

  • 在个人层面上量化耳环的双边对称性.
  • 为了比较手动与自动测量技术的精度,用于耳朵对称性评估.
  • 为了测试准确量化需要先进技术的假设.

主要方法:

  • 分析了42名健康志愿者的CT扫描.
  • 用手动测量和高精度计算机辅助的基于表面的技术来评估耳孔对称性.
  • 评估的关键参数包括长度,宽度,突出,角度和位置差异.

主要成果:

  • 使用这两种方法,在组级 (L与R耳朵) 上没有发现统计学上显著的双边差异.
  • 自动测量检测到74%至100%的个体水平双边差异.
  • 手动测量仅在7%至64%的病例中发现了个体水平的差异.

结论:

  • 人类耳朵在个人层面上表现出显著的不对称性.
  • 高精度的自动化技术在检测微妙的双边差异方面优越.
  • 需要进一步的研究来定义可接受的不对称性用于重建和化目的.