目的旨在探讨髋部双能X线吸收测量仪(dual energy X-ray absorptiometer,DXA)检查体位对骨密度测量结果的影响。方法采用美国Hologic公司Discovery-Wi型DXA,对292例≥50岁男性和绝经后女性骨质疏松志愿者,分别进行两次不同摆位的左侧髋...目的旨在探讨髋部双能X线吸收测量仪(dual energy X-ray absorptiometer,DXA)检查体位对骨密度测量结果的影响。方法采用美国Hologic公司Discovery-Wi型DXA,对292例≥50岁男性和绝经后女性骨质疏松志愿者,分别进行两次不同摆位的左侧髋部DXA扫描:(1)内旋位:股骨干连同双脚一起内旋15~25°;(2)自然位:股骨干连同双脚不内旋或自然摆放。采用世界卫生组织(World Health Organization,WHO)亚洲人骨质疏松诊断标准,对两次扫描分析后得到的股骨颈、大转子、转子间、总面积和质量、Ward's区的DXA结果数据进行详细对比分析。结果内旋位即股骨干连同双脚一起内旋15~25°的髋部DXA扫描,得到不含有小转子结构的图像;而自然位即股骨干连同双脚不内旋或自然摆放的髋部DXA扫描,得到含有小转子结构的图像。自然位DXA扫描的转子骨密度、总骨矿盐含量、总骨密度均高于内旋位测定结果,但差异无统计学意义(均P>0.05)。内旋位和自然位体位下转子T值(-1.23±0.68 vs.-0.45±0.74)和Z值(-0.63±0.82 vs.0.16±0.94)、总T值(-1.12±0.77 vs.-0.74±0.73)和总Z值(-0.48±0.89 vs.-0.05±0.95)的差异有统计学意义(P<0.001)。两种不同体位DXA检查半定量分析结果显示:DXA自然位的WHO分类评分高于内旋位(2.65±0.49)分vs.(1.74±0.45)分],相应的骨折风险低于内旋位(1.35±0.49)分vs.(2.26±0.45)分]。结论内旋位是标准的检查方法,自然位DXA检查可能会“高估”骨密度,“低估”骨折风险。展开更多
Based on the development of modem logistics park in China, and with the thought of minimizing carbon emission, the development of Logistics Park was analyzed and the necessity of developing low carbon Logistics Park w...Based on the development of modem logistics park in China, and with the thought of minimizing carbon emission, the development of Logistics Park was analyzed and the necessity of developing low carbon Logistics Park was proposed. Low carbon emission in Logistics Park was planned. In the end, operation and implementation strategies of low carbon parks were put forward so as to create favorable environment for the re- alization of low carbon emission in Logistics Park.展开更多
文摘目的旨在探讨髋部双能X线吸收测量仪(dual energy X-ray absorptiometer,DXA)检查体位对骨密度测量结果的影响。方法采用美国Hologic公司Discovery-Wi型DXA,对292例≥50岁男性和绝经后女性骨质疏松志愿者,分别进行两次不同摆位的左侧髋部DXA扫描:(1)内旋位:股骨干连同双脚一起内旋15~25°;(2)自然位:股骨干连同双脚不内旋或自然摆放。采用世界卫生组织(World Health Organization,WHO)亚洲人骨质疏松诊断标准,对两次扫描分析后得到的股骨颈、大转子、转子间、总面积和质量、Ward's区的DXA结果数据进行详细对比分析。结果内旋位即股骨干连同双脚一起内旋15~25°的髋部DXA扫描,得到不含有小转子结构的图像;而自然位即股骨干连同双脚不内旋或自然摆放的髋部DXA扫描,得到含有小转子结构的图像。自然位DXA扫描的转子骨密度、总骨矿盐含量、总骨密度均高于内旋位测定结果,但差异无统计学意义(均P>0.05)。内旋位和自然位体位下转子T值(-1.23±0.68 vs.-0.45±0.74)和Z值(-0.63±0.82 vs.0.16±0.94)、总T值(-1.12±0.77 vs.-0.74±0.73)和总Z值(-0.48±0.89 vs.-0.05±0.95)的差异有统计学意义(P<0.001)。两种不同体位DXA检查半定量分析结果显示:DXA自然位的WHO分类评分高于内旋位(2.65±0.49)分vs.(1.74±0.45)分],相应的骨折风险低于内旋位(1.35±0.49)分vs.(2.26±0.45)分]。结论内旋位是标准的检查方法,自然位DXA检查可能会“高估”骨密度,“低估”骨折风险。
基金Supported by Henan Science and Technology Program(102400440008)Henan Government Decision-making Research IFB Program (B667) .
文摘Based on the development of modem logistics park in China, and with the thought of minimizing carbon emission, the development of Logistics Park was analyzed and the necessity of developing low carbon Logistics Park was proposed. Low carbon emission in Logistics Park was planned. In the end, operation and implementation strategies of low carbon parks were put forward so as to create favorable environment for the re- alization of low carbon emission in Logistics Park.
