| Autor: |
H H, Zhang, C, Zhao, H Y, Liu, N, Li, Y H, Wang, J H, Sun, L, Lu |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Fa yi xue za zhi. 36(5) |
| ISSN: |
1004-5619 |
| Popis: |
Objective To develop mathematical models for skeletal age determination with multiple statistic method based on the correlation between age and the growth of the epiphysis of extremitas sternalis of clavicle in Shanxi adolescents. Methods The 562 Shanxi sternoclavicular joint samples （454 cases of modelling, 108 cases of external verification） were scanned by the thin-section computed tomography. After volume rendering was obtained, indicators such as area of epiphysis, area of metaphysis, longest diameter of epiphysis and longest diameter of metaphysis of both extremitas sternalis of clavicle were collected. Indicators such as the ratio of area of epiphysis to area of metaphysis, and the ratio of longest diameter of epiphysis to longest diameter of metaphysis of both sides were calculated. Then multiple linear regression and random forest discriminant models were used to build mathematical models for age determination of adolescents. Results The obtained indicators exhibited a strong correlation with age （山西省青少年锁骨胸骨端骨龄推断数学模型的构建.目的 基于我国山西省青少年锁骨胸骨端骨骺发育情况与年龄的相关性，利用多元统计方法建立骨龄推断的数学模型。 方法 利用薄层计算机体层扫描技术对山西省562例胸锁关节样本（454例建模，108例外部验证）进行扫描，获取容积再现后采集双侧锁骨胸骨端骨骺面积、干骺端面积、锁骨胸骨端骨骺最长径、干骺端最长径，并分别计算双侧骨骺面积与干骺端面积之比、骨骺最长径与干骺端最长径之比等指标，再利用多元回归及随机森林判别构建青少年活体年龄推断的数学模型。 结果 观察指标与年龄均具有较强的相关性（法医人类学；年龄测定，骨骼；锁骨胸骨端；数学模型；青少年；山西. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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