基于儿童连续薄层解剖数据集三维重建骶椎及其软骨的可视化研究

doi:10.13418/j.issn.1001-165x.2025.1.04

Abstract

Abstract: Objective To observe the reconstruction of sacral vertebra and its cartilage based on the continuous ultra-thin sectional anatomical dataset of children, providing 3D visualization models for clinical, teaching and research applications. Methods A continuous high-definition sectional anatomy dataset of a 3-year-old girl pelvi in China was obtained by milling the pelvi specimen using cryo-numerical control technology. Then, the software was used to segment the bone, cartilage and intervertebral discs of the sacrum and establish corresponding paths. On this basis, the sacral vertebra model in children was reconstructed and analyzed after reconstruction.Finally, the results of model were compared with the collected pelvic image data of 20 children aged 3 to 4 years to verify its accuracy and effectiveness. Results A dataset of ultra-thin and high-definition sectional anatomical images of the pelvic of girls was obtained, and a 3D visual digital model of sacral vertebra and cartilage was constructed in a 3-year-old Chinese girl. The measurement results showed that the anteroposterior diameters of S1-S4 Neurocentral Synchondrosis (NCS) varied from large to small, and the transverse diameters of S1 NCS were significantly larger than those of other sacral vertebra. From S1 to S3, the height of Vertebral Body and Costal Element Cartilage (VB-CEC), perimeter and anteroposterior diameter of VB-CEC gradually decreased from the beginning side to the tail end. The transverse diameter of VB-CEC in S1 was significantly larger than that of VB-CEC in other sacral vertebra. The 3D model was basically consistent with the measurement results of CT image data. Conclusions The three-dimensional visualization model of children's sacral vertebra can clearly show the structure and position of sacral vertebra and cartilage, and each cartilage of children's sacral vertebra has developmental anatomical characteristics.

Key words: Sacral vertebra; , Cartilage; , Visualization; , , Children; , , Three-dimensional reconstruction

CLC Number:

R323.5

Zhang Fengzhen, Yin Zhaozheng, Yi Yuying, Li Lei, Zhao Jing, Wang Xing, Li Kun, Li Zhijun, Zhang Shaojie. Visualization study of three-dimensional reconstruction of sacral vertebra and its cartilage based on continuous thin sectional anatomy dataset in children[J]. Chinese Journal of Clinical Anatomy, 2025, 43(1): 18-25.

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Visualization study of three-dimensional reconstruction of sacral vertebra and its cartilage based on continuous thin sectional anatomy dataset in children

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