绝经后骨质疏松症骨密度T值与腰椎椎体CT值的相关性

目的：研究绝经后骨质疏松症骨密度T值与腰椎Cr值的相关性。方法：采用双能骨密度公对124例绝经2年以上的妇女进行检测，根据检测结果分组，其中骨质疏松症67例（A组），骨量减少者32例（B组），正常者25例（C组），并检测其k椎体横断面骨皮质和松质的CT值，统计分析各组骨密度T值与腰椎体CT值的相关性。结果：各组骨皮质和骨松质Cr值分别为287．82±96．35、296．06±92．14、316．34±81．18和5．72±35．64、99．76±23．10、189．09±37．03，各组间骨皮质CT值比较差异无统计学意义（P〉0．05），而骨松质cT值比较，差异有统计学意义（P〈0．05）；各组间骨密度T值和L3椎体骨皮质cT值无相关性（r=0．019，t=0．151，P〉0．05），和骨松质CT值存在相关性（r=0．914，t=18．127，P〈0．05）。结论：检测腰椎体骨松质cr值对绝经后骨质疏松症的诊断有参考价值，而检测腾椎体骨皮质的CT值无参考价值。

Clinical research on the dependablity of T value in bone mineral density and CT values on body of lumber vertebre in patients with postmenopausal osteoporosis

OBJECTIVE ： To investigate the dependablity of T value in bone mineral density and CT values on body of lumber vertebre in patients with postmenopausal osteoporosis, nethods：124 cases of women with menopause above 2 years were choosed for the expriment and checked by double - energy bone density machine. They were divided by detection results into three groups, group A （ osteoporosis, 67 cases）, group B （ osteopenia, 32 cases） and group C （ normal, 25 cases ）. T values of cortical bone and spongiosa in the cross section of 13 centrum for all were measured, and then in three groups the dependablity of T value in bone mineral density and CT values on body of lumber vertebre were analyzed statistically. Results： T values of cortical bone and spongiosa in three groups were respectively 287.82 ± 96.35, 296.06 ± 92.14,316.34 ± 81.18,5.72 ± 35.64 and 99.76 ± 23.10,189.09 ± 37.03. There had no statistical significance on T values of cortical bone（ P 〉 0.05 ） in three groups, but had on T values of spongiosa（ P 〈 0.05 ）. There had no dependablity of T value in bone mineral density and CT values on cortical bone of 13 c entrum （r = 0. 019, t = 0.151, P 〉 0.05 ）, but had on that with CT values of spongiosa（ r = 0. 914, t = 18. 127,P 〈 0.05 ）. Conclusion：The detection on CT values of spongiosa in body of lumber vertebre had reference value for diagnosis of postmenopausal osteoporosis, but had not to that of cortical bone.