山西地区正常人骨定量超声测定及评价

Quantitative ultrasound measurements and evaluation of bone quality in normal Shanxi subjects

目的 测定山西地区健康成人跟骨定量超声参数 ,并经体重指数标准化后 ,分不同年龄段进行比较。方法 采用UBIS 50 0 0型定量超声仪 ,对山西地区 81 1名 2 0～ 80岁正常成人 (女 468人 ,男 343人 )行跟骨定量超声参数测量。结果 跟骨超声振幅衰减 (BUA)和刚度 (STI)的峰值女性在45～ 49岁 ,BUA峰值男性在 50～ 54岁。经体重指数校正后 ,不论男性或女性BUA、STI及超声波传导速度 (SOS)峰值均在 2 0～ 2 4岁。结论 跟骨BUA、SOS和STI随年龄增长而变化 ,消除体重指数影响后差异仍明显存在 ,且随着增龄逐年降低 。

Objective To measure the parameters of calcaneal quantitative ultrasound(QUS) in normal Shanxi subjects,which were compared between different age groups after standardization by body mass index (BMI) Methods Calcaneal parameters were measured by UBIS 5000 QUS in 811 normal Shanxi subjects,aged 20 to 80 (468 women, 343 men) years Results The peak values of broadband ultrasound attenuation (BUA) and stiffness (STI) of the calcaneus were both in 45 49 year group for women The peak value of BUA was in 50 54 year group for men Standardized by BMI,the peak values of BUA,STI and sound of speed (SOS) were both in 20 24 year groups for women and men Conclusion BUA,SOS and STI of the calcaneus may change with age After the influence of body mass is eliminated,the change with age still exists obviously,and the parameters may gradually reduce with increasing age