Measurement of lumbar vertebral body by spiral CT and its clinical significance / 中国医学装备

ABSTRACT

Objective:To obtain the volume of thoracolumbar vertebral(T12-L5)in elderly people by CT post processing software, and establish the calculation formula of lumbar vertebral body volume from L1 to L4.Methods: Collect the elderly lumbar CT examination cases, 60 normal elderly people without lumbar lesions were included in this study. The volume of each vertebral body from T12 to L5 was obtained by processing software after a lumbar CT scan. The volume values of vertebral body from L1 to L4 were regarded as dependent variables and the volumes of upper and lower vertebral body was considered as independent variables. All the data were analyzed with multiple linear regression method.Results: There was a correlation between the volume of each lumbar vertebral from L1 to L4 and volumes of adjacent vertebral bodies, and the multivariate linear regression equation between them was obtained successfully.Conclusion: The volume of vertebral body can be accurately measured by CT processing software, and the calculation formula can be used to predict the normal vertebral volume value before fracture. The ratio of bone cement quantity to vertebral volume value can be earned and used to guide the operation of bone cement implantation for the further study.