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| 对老年性骨质疏松诊断中Z值价值的探讨 |
| Investigation of the value of Z score in the diagnosis of senile osteoporosis |
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| DOI： |
| 中文关键词: 骨密度 老年性骨质疏松 诊断价值 Z值 |
| 英文关键词:Bone mineral density Senile osteoporosis Diagnosis value Z value |
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| 中文摘要: |
| 目的通过更改受检者年龄的方法，了解T值和Z值随年龄变化，对定量骨密度测量最终结果评价的影响。方法选 取2012年8月~2012年12月间155例接受CT骨密度定量测量的患者的结果，按年龄段分析其骨量的变化;抽取30 ~40岁 之间的20例女性病例，通过手工更改患者年龄的方法，了解T值和Z值的变化。结果由于T值和Z值定义的不同，T值与 BMD密切相关，不随年龄变化，而Z值是与相同年龄段人群的比较，故在丽D相同的情况下，Z值变化明显。结论CT定量 骨密度测量中，年龄是决定评价结果的重要影响因素，用Z值评价骨密度和诊断骨质疏松更有价值。 |
| 英文摘要: |
| Objective By changing the age of tested subjects，to understand the T score and Z score along with the change of age，and to investigate this effect on quantitative measurement of bone mineral density (BMD). Methods A total of 155 patients，who received CT quantitative measurement of BMD from August 2012 to December 2012，were selected. According to different age groups，the analysis of the change in bone mass was performed. Twenty female patients were extracted from patients between 30 and 40 years old. By manually changing their ages，the changes of T and Z score were analyzed. Results According to the different definition of T and Z score，T score was closely related to BMD，showing no change along with age. Z score was the comparison with population at the same age. The change of Z score was obvious at the same BMD. Conclusion In CT quantitative measurement of BMD，age is one of the important factors to affect the evaluation results. The usage of Z score in the evaluation of BMD and the diagnosis of osteoporosis is more valuable. |
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