目的:本研究旨在对比腰骶椎椎体松质骨的CT值与双能X线骨密度仪(dual energy X ray absorptiometry,DXA)的骨密度值,评估腰骶椎椎体CT值诊断绝经后女性骨质疏松症的应用价值。方法:收集95例临床均确诊为绝经后女性患者,年龄≥59,且≤96...目的:本研究旨在对比腰骶椎椎体松质骨的CT值与双能X线骨密度仪(dual energy X ray absorptiometry,DXA)的骨密度值,评估腰骶椎椎体CT值诊断绝经后女性骨质疏松症的应用价值。方法:收集95例临床均确诊为绝经后女性患者,年龄≥59,且≤96岁,平均(76.45±10.88)岁,均在入院2周内进行腰椎CT和DXA检查。本研究测量腰椎CT检查中的L2至S1椎体CT值,与测量DXA检查的总T-score值进行分析。结果:骨量减少组与骨质疏松组L2至S1椎体的CT值均低于骨质正常组椎体的CT值(P<0.01)。L2至S1椎体CT值和总T-score值为显著正相关(P<0.01)。ROC曲线分析显示,L2和L5椎体CT值的曲线下面积最大,且L2椎体CT值的相关系数最大。因此,本研究选择L2椎体CT值低于72.25HU,作为提示发生骨质疏松症的阈值。结论:通过测量绝经后女性腰椎CT检查中的L2至S1椎体CT值,或将成为提前筛查骨质疏松症、降低患者开支和不良预后风险的有力方式。展开更多
Valuation Adjustment Mechanism of PE in western capitalist countries＇ economic activity is a high-risk, high-yield investment financing. As a new import from at the beginning of entering into China, the law and pract...Valuation Adjustment Mechanism of PE in western capitalist countries＇ economic activity is a high-risk, high-yield investment financing. As a new import from at the beginning of entering into China, the law and practice of the exploration of the related theory have not stopped. This article integrates the actual case of China＇s enterprises to participate in the bet agreement.It proposes to bet on the agreement of the meanings, contents, elements, and introduces the related concept of contrast and analysis, bet agreement on hot issues existing in the practice. It also put forward personal views and Suggestions on legislation.展开更多
文摘目的:本研究旨在对比腰骶椎椎体松质骨的CT值与双能X线骨密度仪(dual energy X ray absorptiometry,DXA)的骨密度值,评估腰骶椎椎体CT值诊断绝经后女性骨质疏松症的应用价值。方法:收集95例临床均确诊为绝经后女性患者,年龄≥59,且≤96岁,平均(76.45±10.88)岁,均在入院2周内进行腰椎CT和DXA检查。本研究测量腰椎CT检查中的L2至S1椎体CT值,与测量DXA检查的总T-score值进行分析。结果:骨量减少组与骨质疏松组L2至S1椎体的CT值均低于骨质正常组椎体的CT值(P<0.01)。L2至S1椎体CT值和总T-score值为显著正相关(P<0.01)。ROC曲线分析显示,L2和L5椎体CT值的曲线下面积最大,且L2椎体CT值的相关系数最大。因此,本研究选择L2椎体CT值低于72.25HU,作为提示发生骨质疏松症的阈值。结论:通过测量绝经后女性腰椎CT检查中的L2至S1椎体CT值,或将成为提前筛查骨质疏松症、降低患者开支和不良预后风险的有力方式。
文摘Valuation Adjustment Mechanism of PE in western capitalist countries＇ economic activity is a high-risk, high-yield investment financing. As a new import from at the beginning of entering into China, the law and practice of the exploration of the related theory have not stopped. This article integrates the actual case of China＇s enterprises to participate in the bet agreement.It proposes to bet on the agreement of the meanings, contents, elements, and introduces the related concept of contrast and analysis, bet agreement on hot issues existing in the practice. It also put forward personal views and Suggestions on legislation.
