定量CT在骨质疏松症诊断中的应用

Application of QCT in diagnosis of osteoporosis

目的 探讨定量CT（QCT）测定椎体骨密度（BMD）在诊断骨质疏松症中的临床价值.方法 对604例中老年患者进行椎体BMD测定.结果 中老年骨密度值50～59岁和60～69岁两组之间两性差异均有统计学意义,女性更为显著.随着年龄增长在两性不同年龄段骨密度值均下降,女性较男性下降比率速度更明显.女性以60～69岁为骨折高发期,男性于70岁以后为骨折高发期.结论 QCT能为骨质疏松提供具体的BMD数值,有助于骨质疏松症的诊断.

Objective To explore the clinical signiticance of quantitative computed tomography（QCT） adjust bone mineral density measurement in diagnosis of osteoporosis. Methods The vertebral BMD of 604 elderly patients were measured. Results BMD between 50 ～ 59 years group and 60 ～ 69 years group was significantly different, and women even more prominent. With age increasing, BMD of women decreased more rapidly than that of men. Females in 60 ～ 65 years had high incidence of fractures, while man was more than 70 years. Conclusion QCT could provide specific osteoporosis BMD values and contribute to the diagnosis of osteoporosis.