老年性骨质疏松症多层螺旋CT腰椎骨结构分析和测量研究

目的:探讨多层螺旋CT(MSCT)评判腰椎形态和骨组织细微结构改变、测量腰椎指数及松质骨CT值这3种方法在老年性骨质疏松症中的诊断价值.方法:对100例经双能X线骨密度仪检测诊断为老年性骨质疏松症病例行腰椎MSCT扫描,分别行形态和骨组织细微结构改变评判、腰椎指数测量、松质骨CT值测量等方法评判,将评判和测量结果采用x...

A study of MSCT in bone structural analysis and measurement of lumbar vertebrae in elderly population with osteoporosis

Objective：To investigate the diagnostic value of multi-slice spiral CT（MSCT） with three methods in evaluating shape and bone fine structure changes of lumbar vertebrae,lumbar index and CT value in cancellous bone of elderly population with osteoporosis.Methods：100 cases of elderly population with osteoporosis diagnosed by dual energy X-ray absorptiometry（DEXA） underwent lumbar vertebrae MSCT examination.The shape and fine structure changes of lumbar vertebrae,lumbar index and CT value of cancellous bone were measured and analyzed by χ2 test.Results：Among 100 cases of osteoporosis,the T-score value of BMD was from-5.1 to-2.5,averaging-3.5±0.8.In evaluation of shape and bone fine structures of lumbar vertebrae,normal state was found in 19 cases,mild osteoporosis in 28 cases,moderate in 4 cases and severe in 49 cases;in lumbar index measurement,normal state was found in 88 cases,mild osteoporosis in 7 cases,moderate in 5 cases and no severe osteoporosis cases;in evaluation of CT value of cancellous bone,there was normal state in 8 cases,mild osteoporosis in 6 cases,moderate in 9 cases and severe in 77 cases.Conclusion：Each of the three methods has its advantages and disadvantages,but the highest detection rate of osteoporosis is obtained by CT value measurement.It can improve the diagnostic accuracy of osteoporosis when combined with other methods,and provide a better objective basis for comprehensive evaluation of osteoporosis and osteoporotic fracture.