ArticleWorld journal of radiology2024
Auricular dimensions in computed-tomography: Unveiling the relationship between ear dimensions, age, and sex using three-dimensional volume rendering reconstructions.
Article in World journal of radiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Non-Surgical Ear Rejuvenation Through Selective Neuromodulation with Onabotulinum and Abobotulinum Toxin-A.Toxins · 2026Article
- Stature and sex estimation auricular morphometry and morphology.Bioinformation · 2026Article
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4 authors.
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Abstract
backgroundThe auricle, or auricula, defines the visible boundaries of the external ear and is essential in forensic investigations, including facial reconstruction and human remains identification. Beyond its forensic significance, auricular morphology attracts interest from various fields, such as medicine and industry. The size of the ears is culturally associated with health and longevity, while surgical techniques for ear reconstruction address both congenital and aesthetic concerns.
aimTo determine whether known correlations with various measurements and observations regarding sex and age could also be established through computed tomography (CT).
methodsComputed tomography scans of the head from 342 females and 329 males aged 18 to 97 years (mean = 60 ± 19 years) were included in this study. Different auricular lengths, widths and perimeters were measured for both sides. Additionally, the preauricular area was assessed using three-dimensional volume rendering technique images.
resultsThe measured auricular dimensions in centimeters are presented as mean values (right/left) for males (length 1 6.91 ± 0.51/6.93 ± 0.52; length 2 2.83 ± 0.35/2.84 ± 0.34; width 1 3.94 ± 0.32/4.01 ± 0.36; width 2 3.51 ± 0.34/3.46 ± 0.31; perimeter 17.66 ± 1.25/17.71 ± 1.28) and females (length 1 6.44 ± 0.5/6.48 ± 0.51; length 2 2.7 ± 0.32/2.71 ± 0.33; width 1 3.6 ± 0.32/3.68 ± 0.31; width 2 3.3 ± 0.3/3.26 ± 0.27; perimeter 16.36 ± 1.2/16.46 ± 1.2). A positive correlation with age was shown in all measurements, with the highest value for perimeter in both, males (
conclusionIn this study, we pioneered the use of CT volumetric data to examine human auricle morphology and we achieved a precise 3D (pre-) auricular assessment. Sex-specific positive correlations between ear dimensions and age, as well as the mean age for the appearance of preauricular lines, were identified, providing valuable insights into the capabilities of modern CT devices.
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