法医学杂志 ›› 2023, Vol. 39 ›› Issue (1): 27-33.DOI: 10.12116/j.issn.1004-5619.2022.220101

• 论著 • 上一篇    下一篇

基于CT三维重建技术推断西部地区汉族成人颅骨性别

杨孝通1,2(), 孙丞辉3, 马永刚4, 曹永杰2,5, 熊剪2,6, 张吉2(), 黄平2()   

  1. 1.山西医科大学法医学院,山西 太原 030001
    2.司法鉴定科学研究院 上海市法医学重点实验室 司法部司法鉴定重点实验室 上海市司法鉴定专业技术服务平台,上海 200063
    3.上海市公安局奉贤分局刑事科学技术研究所,上海 201499
    4.西安交通大学附属三二〇一医院影像科,陕西 汉中 723000
    5.南京医科大学法医学院,江苏 南京 211166
    6.贵州医科大学法医学院,贵州 贵阳 550000
  • 收稿日期:2022-01-05 发布日期:2023-02-25 出版日期:2023-02-28
  • 通讯作者: 张吉,黄平
  • 作者简介:张吉,男,博士,助理研究员,主检法医师,主要从事法医病理学研究;E-mail:zhangj@ssfjd.cn
    黄平,男,博士,研究员,主任法医师,主要从事法医病理学研究;E-mail:huangp@ssfjd.cn
    杨孝通(1997—),男,硕士研究生,主要从事法医病理学研究;E-mail:895081557@qq.com
  • 基金资助:
    国家自然科学基金资助项目(81671869);中央级公益性科研院所资助项目(GY2020G-2);上海市法医学重点实验室资助项目(21DZ2270800);司法部司法鉴定重点实验室资助项目;上海市司法鉴定专业技术服务平台资助项目

Sex Estimation of Han Adults in Western China Based on Three-Dimensional Cranial CT Reconstruction

Xiao-tong YANG1,2(), Cheng-hui SUN3, Yong-gang MA4, Yong-jie CAO2,5, Jian XIONG2,6, Ji ZHANG2(), Ping HUANG2()   

  1. 1.Department of Forensic Medicine,Shanxi Medical University,Taiyuan 030001,China
    2.Shanghai Key Laboratory of Forensic Medicine,Key Laboratory of Forensic Science,Ministry of Justice,Shanghai Forensic Service Platform,Academy of Forensic Science,Shanghai 200063,China
    3.Criminal Science and Technology Research Institute,Fengxian Branch of Shanghai Municipal Public Security Bureau, Shanghai 201499, China
    4.Department of Medical Imaging,3201 Hospital Affiliated,Xi’an Jiaotong University,Hanzhong 723000,Shaanxi Province,China
    5.Department of Forensic Medicine,Nanjing Medical University,Nanjing 211166,China
    6.Department of Forensic Medicine,Guizhou Medical University,Guiyang 550000,China
  • Received:2022-01-05 Online:2023-02-25 Published:2023-02-28
  • Contact: Ji ZHANG,Ping HUANG

摘要:

目的 利用颅骨CT三维重组技术检验Walker模型推断我国西部地区汉族成人性别的可靠性和准确性,并研究适用于西部地区汉族人群的颅骨性别推断模型。 方法 收集陕西省汉中医院2017—2021年的576例颅骨CT三维重组图像,分为实验组486例、验证组90例。观察者1采用Walker模型对实验组样本评分进行性别推断,并修正为适用于西部地区汉族样本的logistic函数,3名观察者对验证组90例样本评分,代入修正后的logistic函数完成回代检验。 结果 应用Walker模型推断西部地区汉族成人性别准确率为63.2%~77.2%,修正的性别推断模型的准确率为82.9%。3名观察者回代检验性别推断准确率为75.6%~91.1%,观察者之间Kappa一致性检验结果为0.689(P<0.05),观察者内部Kappa一致性检验结果为0.874(P<0.05)。 结论 不同地区人群骨骼特征存在差异,修正后的logistic函数在西部地区汉族成人获得了更高的准确率。

关键词: 法医人类学, 颅骨, 性别推断, CT三维重组, 汉族

Abstract:

Objective To examine the reliability and accuracy of Walker’s model for estimating the sex of Han adults in western China by using cranium three-dimensional (3D) CT reconstruction, and to study the suitable cranial sex estimation model for Han people in western China. Methods A total of 576 cranial CT 3D reconstructed images from Hanzhong Hospital in Shaanxi Province from 2017 to 2021 were collected. These images were divided into the experimental group with 486 samples and the validation group with 90 samples. Walker’s model was used by observer 1 to estimate the sex of experimental group samples. The logistic function applicable to Han people in western China was corrected by observer 1. The 90 samples in the validation group were scored and substituted into the modified logistic function to complete the back substitution test by observer 1, 2 and 3. Results The accuracy of sex estimation of Han adults in western China was 63.2%-77.2% by applying Walker’s model. The accuracy of modified logistic function was 82.9%. The accuracy of sex estimation through back substitution test by 3 observers was 75.6%-91.1%, with a Kappa value of 0.689 (P<0.05) for inter-observer consistency and 0.874 (P<0.05) for intra-observer consistency. Conclusion There are great differences in bone characteristics among people from different regions. The modified logistic function can achieve higher accuracy in Han adults in western China.

Key words: forensic anthropology, cranium, sex estimation, CT three-dimensinal restruction, Han population

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