双能X线吸收法测量252例正常人BMD结果分析

Result analysis of DEXA is used to measure 252 cases of normal peoples

２５２例正常人，男性１１７例，女性１３５例，年龄范围２０～７８岁，每１０岁为一个年龄组。用ＳＰＡ测量桡骨ＢＭＤ，用ＤＥＸＡ测量腰椎、左右髋骨ＢＭＤ及全身ＢＭＣ，结果表明桡骨、腰椎及全身的峰值骨量年龄在３０～３９岁，股骨颈、ｗａｎｄ＇ｓ三角的峰值骨量年龄在２０～２９岁，没有性别差异。女性４０岁以后骨丢失速度明显快于男性，到６０岁时，桡骨、股骨颈、ｗａｒｄ＇ｓ三角ＢＭＤ及全身ＢＭＣ低于Ｔ评分临界值。男性７０岁时股骨颈骨丢失低于Ｔ评分临界值。

cases of human being were studied in this paper. Of those, men were 117, women were 135, the average ages rangcd from 20 to 78. It was grouped according to decade. SPA was used to measure BMD of Radius. DEXA was used to measure BMD of Ap-spine, L-hip and total body BMC. The result showed that the ages of peak bone mass of Radius ,Ap-spine and total body BMC are from 30 to 39. There were no sex difference. The ages of peak bone mass of BMD of L-Neck and L-Ward's were from 20 to 29. Bone loss of women over 40 years old was rapid than that of men at same age. The values of BMD of Radius ,T-Neck ,L-ward's and total body BMC in women at 60 years old were lower than that of T-score. The value of bone loss of L-Neck in men at 70 years old was lower than that of Tscore.