法医学杂志

法医学杂志 ›› 2013, Vol. 29 ›› Issue (5): 340-343.DOI: 10.3969/j.issn.1004-5619.2013.05.006

• 论著 • 上一篇    下一篇

基于CT扫描并图像重组青少年锁骨胸骨端骨龄数学模型

魏  华1，2，特来提·赛依提3，万  雷2，应充亮2，王亚辉2   

  1. （1. 华东政法大学研究生教育院，上海 200042； 2. 司法部司法鉴定科学技术研究所 上海市法医重点实验室，上海 200063； 3. 新疆警察学院侦察系，新疆 乌鲁木齐 830011）
  • 发布日期:2013-10-25 出版日期:2013-10-28
  • 通讯作者: 王亚辉，男，硕士，助理研究员，主检法医师，主要从事法医临床学研究；E-mail：wangyh@ssfjd.cn
  • 作者简介:魏华（1988—），男，福建宁德人，硕士研究生，主要从事法医临床学研究；E-mail：mustweihua@hotmail.com
  • 基金资助:

    国家自然科学基金资助项目（81102305）；“十二五”国家科技支撑计划项目（2012BAK16B01）；上海市科委2009年度技术标准体系研究与开发类重点项目（09231203500）；上海市法医学重点实验室资助项目（13DZ2271500）

Mathematical Models of the Teenager’s Skeletal Age Evaluation Based on CT Scan and Imaging Reconstruction of Medial Clavicular Epiphysis

WEI HUA1,2, TELET·SIYIT3, WAN LEI2, YING CHONG-LIANG2, WANG YA-HUI2   

  1. （1. Graduate School of East China University of Political Science and Law, Shanghai 200042, China; 2. Shanghai Key Laboratory of Forensic Medicine, Institute of Forensic Science, Ministry of Justice, P.R.China, Shanghai 200063, China; 3. Faculty of Reconnaissance, Xinjiang Police College, Urumqi 830011, China）
  • Online:2013-10-25 Published:2013-10-28

被引次数

5

摘要： 目的 利用我国青少年锁骨胸骨端骨骺发育变化规律，探讨CT容积再现（volume rendering，VR）数据与生物学年龄的相关性，并建立推断骨龄的数学模型。 方法 通过对我国华东、华南地区684名15～25周岁青少年双侧锁骨胸骨端进行CT薄层扫描并VR三维图像重组，测量并计算双侧锁骨胸骨端骨骺最长径、干骺端最长径及其长度比、骨骺面积、干骺端面积及其面积比等数据，并建立骨龄推断的数学模型。再将50例训练样本代入数学模型，检验模型的准确性。 结果 左、右两侧骨骺与干骺端长度比、面积比在同一年龄组男女性间差异具有统计学意义（P<0.05）。建立的数学模型表明锁骨胸骨端骨骼的发育规律与生物学年龄具有高度的相关性，所有模型的准确率都高于70.5%（±1.0岁）和82.5%（±1.5岁）。 结论 建立的骨龄数学模型的可操作性强、准确性较高。这不仅可与图谱法相互印证和支持，提高骨龄推断的准确性；同时，该方法对未来研究其他单一部位骨龄推断具有重要的意义。

关键词: 法医人类学, 年龄测定, 骨骼, 锁骨胸骨端, 容积再现, 数学模型

Abstract: Objective To explore the correlation between CT volume rendering （VR） statistics and living age and to build the mathematical models for skeletal age evaluation based on the growth rules of medial clavicular epiphysis of teenagers in China. Methods The thin layer CT scan and VR 3D imaging reconstruction of both sides of sternal ends of clavicles were examined for 684 teenagers aged from 15 to 25 in East and South China. The parameters of  sternal end of clavicle including the longest diameter of epiphysis, the longest diameter of metaphysis, their length radio, area of epiphysis, area of metaphysic, their area ratio, and other data were measured and calculated in order to establish  mathematical models of  skeletal age evaluation. Fifty trained subjects were tested to verify the accuracy of the mathematical models. Results In the same age group, the length ratio and the area ratio had significant difference in genders （P<0.05）. The established mathematical models showed that the growth rules of medial clavicular epiphysis were highly correlated with the living ages. The accuracies of these models were higher than 70.5% （±1.0 year） and 82.5% （±1.5 year）. Conclusion The mathematical models have easy operability and high accuracy. It can be used to confirm and sustain the conclusion of atlas method. Meanwhile, it is of great significance to study the other single skeletal age evaluation in the future.

Key words: forensic anthropology, age determination by skeleton, sternal end of clavicle, volume rendering, mathematical model

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