摘要
目的研究椎体小梁骨面积比值与ＱＣＴ骨密度值之间相关关系。方法随机选取６６例病人，分为３０～５０岁和５０岁以上两组，对第三腰椎行ＣＴ扫描，并以８０ＨＵ、１００ＨＵ和１２０ＨＵ不同阈值分别计算小梁骨面积比值（小梁骨面积／兴趣区面积），与此同时检测相同层面ＱＣＴ骨密度值。结果两组中以１００ＨＵ为阈值测得的椎体小梁骨面积比值与骨密度之间有显著的直线相关关系，其相关系数分别ｒ１＝０．７８９（Ｐ＜０．０００１）和ｒ２＝０．７５８（Ｐ＜０．０００１）。结论椎体小梁骨面积比值与骨密度间密切相关。
Objective\ To investigate the correlation between the ratio of trabecular area (trabecular area/ROI area) and bone mineral density (BMD) of vertebral body measured by quantitative computed tomography (QCT).\ Methods[WTBZ]\ Sixty six patients were divided into two groups of >50 years and 30 50 years.QCT was performed at section of third lumbar vertebral body.The ratio of trabecular area was measured separately at different threshold values of 80HU,100HU,and 120HU,and bone densitometry was performed at the same time.\ Results[WTBZ]\ There was a significant correlation between the ratio of trabecular area measured at threshold 100HU and BMD in the two groups ( r 1=0.789,r 2=0.758,p<0 0001 ).\ Conclusion\ There is a high correlation between the ratio of trabecular area of lumbar spine and BMD,therefore,we can estimate BMD by ratio of trabecular area.
出处
《中国骨质疏松杂志》
CAS
CSCD
1999年第1期35-39,共5页
Chinese Journal of Osteoporosis
