ABSTRACT
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.
ABSTRACT
[Objective] To evaluate the clinical value of diagnosing osteoporosis with vertebra bone mineral density(BMD) by measurement with quantitative computed tomography (QCT) . [ Method] BMD in of lumbar vertebrae (L<,1～4>)were measured by QCT in 53 healthy middleaged persons or elderly persons (group A) and 68 osteoporosis patients ( groupB) . [Result] BMD in group A declined obviously as age increasing with significant differences (P<0. 01) . In group B,all 68 patients showed osteoporosis according to the diagnostic standard of BMD≤x -2. OSD. Sixty patients showed osteoporosis ifthe diagnostic standard was set to BMD ≤ x -2. 5SD. The BMD values of different age group was lower than the bone quantityblock values. [Conclusion] As a method for diagnosing osteoporosis, QCT has advantages of high sensitation, being precise,being reproducible and is easy for applying. It would be more practical and could decrease mis - diagnosing if the diagnosticstandard was BMD≤x-2.OSD.
ABSTRACT
Objective To explore the clinical value and the difference of bone mineral density(BMD) in every vertebra of lumbar spine in middle old-aged Chinese female with quantitative computed tomography (QCT).Methods The BMD in every vertebra of lumbar spine was investigated by QCT in 725 healthy females aged from 35 to 98 years. They were divided into groups every five years.The BMD in vertebra of lumbar spine (L 1～L 4) were measured by QCT and the groups tested for significant differences,using SPSS10.0 software for the analysis.Results Lumbar spine (L 1～L 4) BMD declined with aging. The bone quantity was predominantly declined in group of 50 to 54 years (?