螺旋CT多层面重建(MPR)在腰椎间盘病变诊断中的应用价值

目的　探讨螺旋CT多层面重建 (MPR)对腰椎间盘病变的诊断价值。方法　经常规扫描和螺旋扫描MPR重建腰椎间盘病变患者共 41例 ,对L3～ 4 、L4～ 5和L5～S1扫描所得结果进行对比观察。结果　 41例经常规扫描患者中有 35例表现为椎间盘膨出或/和突出 ,经螺旋CT扫描MPR重建示有 36例表现为神经根受压、硬膜囊受压或椎间孔骨性狭窄 ,其中常规扫描无异常发现的 6例患者 ,经MPR示椎间盘压迫神经根或椎间孔骨性狭窄致神经根受压。结论　MPR重建在诊断腰椎间盘病变、显示腰椎疾病的原因以及腰椎疾病的鉴别诊断等方面具有重要价值

The Diagnostic Value of Multiplanar Reconstruction(MPR) of Spiral CT inDegenerative Disorders of Lumbar Spine

Objective To explore the diagnostic value of multiplanar reconstruction(MPR)of spiral CT in the disorders of lumbar intervertebral discs.Methods Fourty-one cases with the disorders of lumbar intervertebral discs were examined with conventional CT scans and MPR of spiral CT.CT findings of intervertebral discs at L 3/4 ,L 4/5 and L 5/S 1 were compared and observed.Results The conventional scans showed bulging and /or herniation of intervertebral discs in 35 cases,and normal in 6 cases which compression of nerveroots by intervertebral discs or osseous narrow of intervertebral discs were showed on MPR.The MPR showed compression of nerve roots,compression of dural sac or osseous narrow of intervertebral foramens in 36 cases.Conclusion MPR possesses important value in diagnosing the disorders of lumbar intervertebral discs,showing the causes of lumbar vertebral diseases and distinguishing the various diseases of lumbar vertebrae.