目的 探讨多层螺旋CT(MSCT)MPR重建技术在腰椎椎弓崩裂中的诊断价值。方法 对322例腰椎椎弓崩裂在多平面重建 (MPR)矢状位和横轴位图像的CT表现进行回顾性分析。结果 多平面重建(MPR)矢状位和横轴位图像对322例347处椎 弓崩裂均显示良好。结论 MSCT的多平面重建(MPR) 矢状位及横轴位对腰椎椎弓崩裂具有良好的显示效果, 能明确 诊断腰椎椎弓崩裂，对病变的诊断和临床治疗方案的制定具有较高的价值。

Objective To investigate the diagnostic value of multi-slice spiral CT (MSCT) MPR in lumbar spondylolysis. Methods A retrospective analysis of 322cases with lumbar spondylolysis images in multiple planar reconstruction (MPR) sagittal and axial CT performance. Results Multiple planar reconstruction (MPR) sagittal and axial images showed excellent in 322 cases with 347 points of lumbar spondylolysis. Conclusion Sagittal and axial of MSCT multiplanar reconstruction (MPR) displayed well in lumbar spondylolysis, the lumbar spondylolysis were diagnosed definitely , MPR had high value on diagnosis and clinical treatment programs of lumbar spondylolysis.