CAJ | 학술논문

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BMD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。
목적：통과경개수검자년령적방법，료해T치화Z치수년령변화，대정량골밀도측량최종결과평개적영향。방법선취2012년8월～2012년12월간155례접수CT골밀도정량측량적환자적결과，안년령단분석기골량적변화；추취30～40세지간적20례녀성병례，통과수공경개환자년령적방법，료해T치화Z치적변화。결과유우T치화Z치정의적불동， T치여BMD밀절상관，불수년령변화，이Z치시여상동년령단인군적비교，고재BMD상동적정황하，Z치변화명현。결론 CT정량골밀도측량중，년령시결정평개결과적중요영향인소，용Z치평개골밀도화진단골질소송경유개치。
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.