新的DXA身体组成方法:与传统的全身扫描相比
Diane Krueger1, Gretta Borchardt1, Lucas Andersen1
1Osteoporosis Clinical Research Program, University of Wisconsin, Madison WI, USA.
概括
使用全身减去头部 (TBLH),关膝盖 (NTK) 和下肢 (LE) 方法的新型缩写体质扫描与传统的全身 (TB) 双能X射线吸收计 (DXA) 扫描相当.
科学领域:
- 身体组成分析分析.
- 双能X射线吸收仪 (DXA) 是一种双能X射线吸收仪.
- 生物医学成像技术 生物医学成像技术
背景情况:
- 传统的全身 (TB) DXA扫描全面评估身体组成.
- 新的缩写采购方法提供了潜在的效率.
- 评估这些新方法与传统结核病扫描的可比性至关重要.
研究的目的:
- 为了评估身体组成测量的可比性,使用了三种新的缩写DXA获取技术:总体减去头部 (TBLH),部到膝盖 (NTK) 和下肢 (LE).
- 为了测试假设,通过这些新的方法获得的身体组成质量与传统的结核病获得没有显著差异.
主要方法:
- 在82名受试者身上使用月球iDXA获得了结核病,TBLH,NTK和LE DXA扫描.
- 使用自动化软件进行TBLH和NTK扫描,NTK估计未扫描的下腿质量.
- 采用同等性测试来比较区域瘦肉,脂肪和骨矿物质含量 (BMC) 测量与传统的结核病扫描;使用ISCD精度计算器评估精度.
主要成果:
- 总和区域瘦肉,脂肪和骨质量测量结果在所有测试方法中都相当 (p < 0.01).
- 结核病和TBLH方法在不同性别和年龄之间观察到很好的一致性 (p < 0.001).
- NTK和LE方法表现出极好的精度 (0.45-2.31%CV),脂肪和瘦肉测量的差异在临床上是微不足道的.
结论:
- 三种新的缩写DXA方法 (TBLH,NTK,LE) 提供了与传统结核病测量相一致的区域身体组成数据.
- 在适当的情况下,这些方法可以被视为TB测量的同等替代品.
- 缩写的DXA协议为身体成分评估提供了一个可行的替代方案.
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