摘要
目的:研究腰椎定量CT(QCT)骨密度测量对椎体骨折的诊断价值,提高QCT诊断椎体骨折的敏感性。方法:选择2012年7月-2013年7月本院收治的均行胸腰椎CT及MRI检查的外伤患者20例及2012年1-7月于本院行腰椎CT检查有明确椎体陈旧骨折3个月以上病史的患者11例作为研究对象,将MRI上椎体骨髓水肿区作为感兴趣区(ROI),通过QCT PRO工作站上进行分析处理,共测量28个新鲜骨折椎体、14个陈旧骨折椎体及其邻近椎体的松质骨骨密度(BMD)。结果:新鲜骨折椎体骨松质密度高于其对照椎体骨松质密度,比较差异有统计学意义(P<0.01);陈旧骨折椎体骨松质密度与其对照椎体骨松质密度比较,差异无统计学意义(P=0.125)。结论:新鲜骨折椎体内骨松质BMD值会增高,陈旧骨折的骨松质BMD值能够反映椎体修复的特点,腰椎QCT BMD测量有助于椎体骨折的诊断。
Objective：To study the diagnostic value of bone mineral density measurement by quantitative computed tomography of lumbar for vertebral fracture,to improve the sensitivity of QCT in the diagnosis of vertebral fracture. Method：20 injury patients who received thoracolumbar CT and MRI examination in our hospital from July 2012 to July 2013 were selected as the research objects.11 patients with obsolete vertebral fractures for more than 3 months in our hospital from January 2012 to July 2012 were also selected as the research objects.The area of marrow edema in MRI were selected as the region of interest（ROI）.The scan data of 28 fresh vertebral fractures,14 old vertebral fractures and their adjacent vertebral bodies were analyzed by the QCT PRO station in order to catch the BMD of cancellous bone.Result：The BMD of cancellous bone in the fresh fractured vertebral bodies was higher than that in their adjacent vertebral bodies,the difference was statistically significant（P〈0.01）.There was no statistically significant difference in the BMD of cancellous bone between the old fracture vertebral bodies and their adjacent vertebral bodies（P=0.125）.Conclusion：The BMD of cancellous bone in the fresh fracture vertebral body increases and the BMD of cancellous bone in the old fracture vertebral body can reflect the characteristics of renovation in vertebral body.Using spine QCT to measure the BMD is valuable in the diagnosis of vertebral fracture.
出处
《中国医学创新》
CAS
2015年第29期38-41,共4页
Medical Innovation of China
关键词
骨密度
定量CT
骨折
Bone mineral densitometry
Quantitative computed tomography
Fracture
