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双能X线骨密度仪在15cm水深中测量骨密度的准确性

Accuracy of dual energy X-ray absorptiometry in determining bone mineral dens ity 15 cm under water

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【作者】 杨小明； 熊海； 刘静； 李轩； 潘小平； 尚家云； 雷梅； 吕先慧； 兰丹壁；

【Author】 Xiao-Ming Yang,Hai Xiong, Jing Liu,Xuan Li,Xiao-Pi ng Pan,Jia-Yun Shang,Mei Lei,Xian-Hui Lü,Dan-Bi Lan Xiao-Ming Yang,Hai Xiong, Jing Liu,Jia-Yun Shang,Mei Lei,Xian-Hui Lü,Depar tment of Geriatrics,Huaxi Fourth Affiliated Hospital, Sichuan University, Chengd u 610000,Sichuan Province,China Xuan Li,Department of Orthopedics, Shehong Hospital of Traditional Chinese Med icine,Shehong 610000,Sichuan Province,China Xiao-Ping Pan, Department of Health Statistics,Public Health College,Sichuan University,Chengdu 610000,Sichuan Province, China Dan-Bi Lan, Department of Internal Medicine,Yibin Hospital of Traditional Chi nese Medicine,Yibin 610000,Sichuan Province, China

【机构】 四川大学华西附属第四医院老年科； 射洪县中医院骨科； 四川大学公共卫生学院卫生统计教研室； 宜宾县中医院内科 四川省成都市610000； 四川省成都市610000； 四川省射洪县610000； 四川省宜宾县610000；

【摘要】 目的:探讨双能X线骨密度仪(dualenergyX-rayabsorptiometry,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15cm水深中的猪腰段脊柱,共计20例椎骨,计算测量的结果与灰重及灰重密度相关性。结果:骨矿含量与灰重呈显著正相关性(r=0.95,P<0.01),而骨密度与灰重无明显相关性(r=0.41,P>0.05)。结论:DXA测量骨密度中骨矿含量较准确,而骨密度较差。

【Abstract】 AIM:To study the accuracy of dual energy X-ray absorptiometry(DXA) in measuri ng bone mineral density. METHODS:Twenty lumbar vertebraes from 5 pigs were measured by DXA(anterior-po sterior view, AP) 15 cm below water.The data of DXA were compared with bone ash and bone ash density to calculate the correlation. RESULTS: Bone mineral content (BMC) had a significantly positive relation with bone ash mass(r=0.95,P< 0.01), while BMD was not significantly related with bon e ash mass (r=0.41,P >0.05). CONCLUSION: DXA can accurately evaluate bone mineral content, but not bone min eral density

【关键词】 骨密度； 腰维/放射摄影术； 光密度测定法,X线/仪器和设备； 骨质疏松/放射摄影术；
  • 【文献出处】 中国临床康复 ,Chinese Journal of Clinical Rehabilitation , 编辑部邮箱 ,2004年15期
  • 【分类号】R58
  • 【被引频次】2
  • 【下载频次】45
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