Development of New Formulas for Sex and Age Estimation by Assessing Maxillary Sinus Morphology on CBCT.

IF 0.9 4区医学 Q4 MEDICINE, RESEARCH & EXPERIMENTAL

Yonago acta medica Pub Date : 2023-02-01 DOI:10.33160/yam.2023.02.017

Kazuma Otsuki, Isamu Kodani, Dawa Zangpo, Masato Nakatome, Morio Iino

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引用次数: 0

Abstract

Background: The morphology of the maxillary sinus varies between individuals which could be used in the forensic personal identification process.

Methods: In the current study, the CBCT images of the maxillary sinus in 453 patients (217 males, 236 females) aged 14 to 95 years were analyzed. In particular, each left, and right maxillary sinus of the subjects was measured for its maximum height, width, and breadth in 2-D, and volume in 3-D perspectives, and their usefulness for age and sex estimation was examined. Regarding age estimation, because the size of the maxillary sinus increases up to 20s and then decreases over time, two separate age estimation formulas were created, one for subjects in their 14-21 years and the other for those over 22 years old. For each age group, multiple regression formulas were generated using the diameters and volume as explanatory variables and the chronological age as a response variable. This study used 150 cases not included in the study as a validation set for age estimation.

Results: Generally, all the diameters and volumes in both sinuses tended to increase till the mid-20s, and then gradually decreased over time. The derived formulas were tested for their accuracy on additional 150 subjects. Plausibly, the model could estimate the age between 14-21 years old with an average accuracy of ± 1.8 years for men and ± 3.2 years for women. Whereas for those over 22 years old, it was possible to estimate the age with an accuracy of ± 11.8 years for males and ± 10.3 years for females, respectively. A comparison of estimated age and chronological age did not show a statistically significant difference(P > 0.05). It was found that the left maxillary sinus had more age groups showing the most significant difference than other measurements between sexes(P < 0.05). The maxillary sinus height may be significantly affected by gender differences.

Conclusion: Overall, this study showed the effectiveness of age and sex estimation using the maxillary sinus morphometric analyses.

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CBCT上颌窦形态评估性别和年龄新公式的建立。

背景:上颌窦的形态在个体之间存在差异，可用于法医个人鉴定过程。方法:对14 ~ 95岁453例患者(男217例，女236例)上颌窦的CBCT图像进行分析。特别地，测量受试者的每个左上颌窦和右上颌窦的最大高度、宽度和宽度在二维视图中，以及在三维视图中的体积，并检查其对年龄和性别估计的有用性。关于年龄的估计，由于上颌窦的大小在20岁之前会增加，然后随着时间的推移而减少，所以我们创建了两个单独的年龄估计公式，一个是针对14-21岁的受试者，另一个是针对22岁以上的受试者。对于每个年龄组，以直径和体积为解释变量，实足年龄为响应变量，生成多元回归公式。本研究使用150例未纳入研究的病例作为年龄估计的验证集。结果:一般情况下，两窦的直径和体积在25岁左右都有增加的趋势，然后随着时间的推移逐渐减小。推导出的公式在另外150个对象上进行了准确性测试。似乎，该模型可以估计14-21岁之间的年龄，男性平均精度为±1.8岁，女性平均精度为±3.2岁。而对于22岁以上的人群，男性和女性的年龄估计准确率分别为±11.8岁和±10.3岁。估计年龄与实足年龄比较，差异无统计学意义(P > 0.05)。左侧上颌窦年龄组别较多，性别间差异显著(P < 0.05)。上颌窦高度受性别差异影响较大。结论:总的来说，本研究显示了使用上颌窦形态测量分析来估计年龄和性别的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Yonago acta medica MEDICINE, RESEARCH & EXPERIMENTAL-

CiteScore

1.60

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Yonago Acta Medica (YAM) is an electronic journal specializing in medical sciences, published by Tottori University Medical Press, 86 Nishi-cho, Yonago 683-8503, Japan. The subject areas cover the following: molecular/cell biology; biochemistry; basic medicine; clinical medicine; veterinary medicine; clinical nutrition and food sciences; medical engineering; nursing sciences; laboratory medicine; clinical psychology; medical education. Basically, contributors are limited to members of Tottori University and Tottori University Hospital. Researchers outside the above-mentioned university community may also submit papers on the recommendation of a professor, an associate professor, or a junior associate professor at this university community. Articles are classified into four categories: review articles, original articles, patient reports, and short communications.