CT-VRT重建技术对腰骶部隐性脊柱裂的诊断价值

目的评估CT容积漫游技术（CT-VRT）重建对腰骶部隐性脊柱裂（SBO）的诊断价值。方法回顾性分析212例腰骶部隐性脊柱裂的骨盆X线平片和CT-VRT的影像特征,包括对称性、形态、范围和受累椎体及脊柱节段,并比较两种检查手段对骨质缺如的影像特征的显示情况。结果在显示SBO对称性、形态、范围、受累椎体及脊柱节段和游离骨脊等方面,CT-VRT比X线平片准确（P〈0.05）;对于其他影像特征的显示CT-VRT和X线平片无明显差异（P〉0.05）。结论 X线平片和CT是检查SBO的有效手段,CT-VRT能够直观、立体、更准确的显示SBO形态、范围和受累椎体及脊柱节段,鉴别真、假裂隙样骨质缺如,并进一步确定假裂隙样骨质缺失的本质。

Diagnostic values of lumbosacral vertebrae spina bifida occulta with CT-VRT

Objective To evaluate the diagnostic value of plain film and CT volume rendering technique（CT-VRT） reconstruction in SBO.Methods Retrospectively evaluated and compared the imaging features in 212 patients with lumbosacral vertebrae spina bifida occulta（SBO）,including symmetry,shape,range,affected vertebral body and segment of vertebral column.Imaging features of bone absence were evaluated with plain film and CT-VRT.Results CT-VRT exhibited more accurate shape,range,affected vertebral body and segment of vertebral column of SBO than plain film（P0.05）,no significant difference were found in other features（P0.05）.Conclusion Plain film and CT-VRT are effective methods.CT-VRT could exhibit shape,range,affected vertebral body and segment of vertebral column of SBO more accurately,and identify the facticity of fiss-shape bone absence,and make further research to obtained the essence of fiss-shape bone absence.