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目的通过两种超声骨龄模式与CHN法判读青少年骨龄对比研究,为选择一种更适用于评价中国青少年超声骨龄判读模式提供一定的依据。方法对同一受试者同时进行超声骨龄仪测试和X光拍片。受试对象共348名(年龄5～18周岁),分为两组,组1为正常人群组,组2包括患者。结果两种超声骨龄模式与CHN法判读的骨龄都具有高度的相关性(r=0.91～0.97,p<0.001),但两种超声骨龄模式与CHN法判读骨龄结果相比较,无论是组1还是组2,以G-P标准建立的超声骨龄模型(Sun-GP)系统误差及95%置信区间要大;以CHN标准建立的超声骨龄模型(Sun-CHN)与CHN法判读骨龄的系统误差及95%置信区间,组1与组2之间相比较,组2要大。结论Sun-CHN比Sun-GP更加适用于中国青少年儿童的骨龄评价,Sun-CHN评价患者骨龄时误差较大,有待于进一步研究,完善Sun-CHN模型,从而使Sun-CHN法适应范围更广泛。
OBJECTIVE: To compare the bone age of young people by two ultrasonic bone age model and CHN method, to provide a basis for choosing a more suitable model for evaluating the bone age interpretation of Chinese teenagers. Methods The same subjects were simultaneously ultrasonic aging test and X-ray film. A total of 348 subjects (age 5 to 18 years of age) were divided into two groups, group 1 for the normal population group, group 2 includes the patient. Results The two modes of ultrasonic bone age were highly correlated with those of CHN (r = 0.91-0.97, p <0.001). However, the two modes of ultrasonic bone age were significantly different from those of CHN In group 2, the systematic error of the Sun-GP system and the 95% confidence interval were established based on the GP standard. The systematic errors of the skeletal age and 95% of the skeletal age were evaluated by the CHN standard and the Sun-CHN and CHN methods. Confidence interval, group 1 and group 2 compared to the group 2 to be large. Conclusion Sun-CHN is more suitable than Sun-GP for bone age assessment in Chinese children and adolescents. Sun-CHN has a larger error in evaluating bone age, which requires further study and improvement of the Sun-CHN model to make the Sun-CHN method more widely applicable .