【摘要】 【目的】建立苏南地区6~14岁正常汉族儿童超声骨密度(bone mineral density,BMD)正常参考值,为临床应用提供参考。【方法】对6~14岁共9个年龄组男女童,使用定量超声法检测胫骨,每个年龄组男女童各检测100名以上,统计各年龄组男童和女童的超声BMD均数与标准差。【结果】男童6~14岁超声BMD值(m/s)分别为:3 657.6±109.03、665.7±105.9、3 670.8±104.13、703.6±113.9、3 718.8±119.1、3 743.2±104.8、3 762.4±100.7、3 769.5±110.13、834.8±115.4;女童6~14岁超声BMD值(m/s)分别为:3 641.0±103.3、3 652.3±106.3、3 666.6±100.5、3 666.9±102.03、683.7±109.4、3 738.6±114.83、752.1±108.33、780.0±116.0、3 841.7±102.4。【结论】儿童超声BMD检测最佳部位为左胫骨中段内侧,超声BMD随年龄增长而增长,与体重、身高增长呈线性关系,与内分泌变化关系密切。本研究结果可以在临床作为参考标准使用。更多还原

【Abstract】 【Objective】To establish normal reference values on ultrasound bone mineral density(BMD) for healthy Han children in 6~14 age groups in southern Jiangsu. 【Method】There were nine age groups in 6~14 years old,using quantitative ultrasound(QUS) to determine their tibia BMD,each age group including more than 100 children,calculate the median and standard deviation of ultrasound BMD for all age groups. 【Results】The values of ultrasound BMD(m/s) for boys from 6 to 14 age groups were 3 657.6±109.0,3 665.7±105.9,3 670.8±104.1,3 703.6±113.9,3 718.8±119.1,3 743.2±104.8,3 762.4±100.7,3 769.5±110.1,3 834.8±115.4 respectevely.The values of ultrasound BMD(m/s) for girls from 6 to 14 age groups were 3 641.0±103.3,3 652.3±106.3,3 666.6±100.5,3 666.9±102.0,3 683.7±109.4,3 738.6±114.8,3 752.1±108.3,3 780.0±116.0,3 841.7±102.4 respectively. 【Conclusions】The best site for ultrasound BMD is the middle of the left medial tibia in children,the value of ultrasound BMD increased with age,and has a linear relationship with body weight or height growth,a close relationship with the endocrine changes.The results of this study could be as a reference standard in clinical use.更多还原