双能X线骨密度仪(DXA)在25cm水深中测量骨密度的准确性比较  

Comparing The Accucy Of Dual Energic X-ray Absorbtion Measuring Bone Mineral Density Below Water Horizon 25 Centimeter

作　　者：杨小明[1] 熊海[1] 刘静[1] 潘小平[2] 李轩[3] 尚家云[1] 雷梅[1] 吕先慧[1] 

机构地区：[1]四川大学华西附四院,成都610041 [2]四川大学公共卫生学院 [3]四川省射洪县中医院

出　　处：《职业卫生与病伤》2004年第1期9-10,共2页Occupational Health and Damage

摘　　要：目的　探讨DXA测量骨密度的准确性。方法　用DXA(前后位扫描 )测量 5具浸泡在 2 5cm水深中的猪腰段脊柱 ,共计 2 0例椎骨 ,将测量的结果与灰重及灰重密度计算相关性。结果　骨矿含量 (BMC)与灰重的相关性为 0 .94,P <0 .0 1,而骨密度 (BMD)较差r =0 .4,P >0 .0 5。结论　DXA测量骨密度中骨矿含量 (BMC)较准确 ,而骨密度 (BMD)较差。Objective To study the accuracy of dual energic X-ray absorbtion(DXA) measuring bone density. Methods 20 pig lumbar vertebreas below water horizon 25 centimetres from 5 pigs were measured by DXA(anterior-posterior view ,AP) .The data of DXA were compared with bone ash analysis.Results Bone mineral content (BMC) with bone ash weigtht were correlated at high level of significance (r=0.94, P <0.01). While bone measure density(BMD) were not showed significant correlation with bone ash density (r=0.41, P >0.05) Conclusion For DXA to evaluate bone mineral content is more accurate than bone mineral density

关 键 词：双能X线骨密度仪 DXA 25cm水深 测量 准确性 骨质疏松症 

分 类 号：R681[医药卫生—骨科学]