›› 2013, Vol. 29 ›› Issue (3): 168-171,179.DOI: 10.3969/j.issn.1004-5619.2013.03.003

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The Staging Method of Sternal End of Clavicle Epiphyseal Growth by Thin Layer CT Scan and Imaging Reconstruction

WANG YA-HUI1, WEI HUA1,2, YING CHONG-LIANG1, WAN LEI1, ZHU GUANG-YOU1   

  1. (1. Shanghai Key Laboratory of Forensic Medicine, Institute of Forensic Science, Ministry of Justice, P.R.China, Shanghai 200063, China; 2. East China University of Political Science and Law, Shanghai 200042, China)
  • Online:2013-06-25 Published:2013-06-28

Abstract: Objective To establish a CT staging method of sternal end of clavicle epiphyseal growth for teenagers by thin layer CT scan, multiplanar reconstruction (MPR) and volume reconstruction (VR) technologies. Methods The CT imaging characteristics, which collected from 460 teenagers (aged from 15 to 25) in East and South China, were studied through both sternal ends of clavicles’ imagings by thin layer coronal CT scan and axial CT scan, MPR and VR technologies. The parameters of sternal end of clavicle including the longest diameter of epiphysis, the longest diameter of metaphysis, their length ratio, area of epiphysis, area of metaphysis, and their area ratio were measured and calculated in order to establish new classification. Results Based on the staging method of Schmeling, integrating the CT imaging reconstruction information of sternal end of clavicle, the new classification of sternal end of clavicle epiphyseal growth were divided into 1 to 5 stages, and stage 2 and stage 3, respectively, contained a, b and c sub-classification. Conclusion This new classification has merits of large sample size, wide age range and easy operability. By using CT imaging reconstruction techniques and analyzing the data which closely related to sternal end of clavicle epiphyseal growth of teenagers, the feasibility of the staging method could be increased.

Key words: forensic anthropology, tomography, spiral computed, multiplanar reconstruction, volume reconstruction, epiphyses, sternal end of clavicle

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