Abstract

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Title:: Comparative study on the bone mineral density of lumbar vertebrae measured by quantitative CT versus dual-energy X-ray bone densitometer

Author(s):: LI Yifang; CHEN Dandan; CAI Yanzhi; Department of Endocrinology, the Second People’s Hospital of Hunan Province, Changsha 410007, China

Keywords:: ; Keywords: lumbar vertebrae; X-ray computer; tomography; bone mineral density; photodensity measurement

Abstract:: Abstract: Objective To compare the accuracy of quantitative computed tomography (CT) and double-energy X-ray bone densitometer for measuring the bone mineral density (BMD) between lumbar vertebrae. Methods A total of 100 healthy subjects were selected and divided into observation group and control group according to different measurement methods. Double-energy X ray was adopted in observation group, while quantitative CT was applied in control group. The accuracies of measurements were analyzed and compared. Results The BMD of L2-L4 vertebral body in males and females from control group was different. Moreover, the differences in BMD between the vertebral body were significant (P<0.05), and the BMD was gradually increased by L2-L4. No statistical differences were found in the BMD of L2-L4 vertebral body in males and females from observation group (P>0.05). Conclusion Using quantitative CT for the measurement of BMD between lumbar vertebrae can effectively improve the accuracy of measurement and provide references for clinical diagnosis and treatment of diseases.