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Updated: Jun 21, 2025

Author Spotlight: Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans
Published on: September 8, 2023
Establishment of Cephalic Index by Computed Tomography in Sampled Chinese Children
Qin-Chuan Liang1, Xi Chen2, Hui-Qing Liu1
1Department of Pediatric Neurological Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine.
Objective:
Cephalic Index (CI), the ratio of head width to length, is one of the indexes reflecting cranial morphological characteristics. Current norms were established by European and American countries. The purpose of the study was to study anthropometry of cranial parameters using computed tomography scans to establish the CI of the sampled Chinese Children.
Methods:
The cross-sectional study was carried out on patients of age younger than 14 years old at Shanghai Children's Medical Center. The measurement of maximum cranial breadth and maximum cranial length were taken on a computed tomography scan machine and recorded for analysis. Cephalic Index was calculated for each age and sex group and compared with previously established norms.
Results:
Five hundred eighteen patients met the inclusion criteria, including 301 males and 217 females. The means for boys and girls were 87.1 (SD: 4.3) and 85.8 (SD: 4.3), respectively. There was a significant difference between boys and girls (P < 0.01). Cephalic Index in different ages and on applying the 1-way analysis of variance association was statistically insignificant (P = 0.19).
Conclusions:
Chinese head shape was brachycephalic. A statistically significant correlation was seen between the CI and sex, while not age.

