双能X线骨密度仪(DXA)在10厘米水深中测量猪脊柱骨密度的准确性比较  

Comparing the Accuracy Of Dual Energic X-ray Absorption(DXA) Measuring Pig Vertebral Bone Mineral Density Immersed 10 Centimeters Below Water Horrzon

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卫生统计教研室 [3]四川省射洪县中医院

出　　处：《预防医学情报杂志》2004年第2期117-118,共2页Journal of Preventive Medicine Information

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 10cm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 95 ,P <0 0 1,而骨密度 (BMD)较差r =0 4 7,(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)Objective To study the accuracy of dual energic X-ray absorption(DXA) measuring bone density. Metheds 20 pig lumbar vertebreas from 5 pigs were immersed 10 centimeters below water horizon and measured by DXA(anterior-posterior view ,AP).The data of DXA was compared with bone ash analysis.Results Bone mineral content (BMC) and bone ash weigtht were correlated at high level of significance with r=0.95 P<0.01, while bone mineral density(BMD) was showed a lower correlation with bone ash density (r=0.47,P<0.05). Conclusions DXA evaluates bone mineral content is more accurate than bone mineral density

关 键 词：双能X线骨密度仪 准确性 X射线 

分 类 号：R814[医药卫生—影像医学与核医学]