The value of image reconstruction technique of 64-slice spiral CT in diagnosing lumbar spondyloschisis

Objective To explore the value of 64-slice spiral CT with various processing in the diagnosis of spondylolysis of lumbar spine.Methods 38 cases with lumbar spondylolysis patients were examined by 64-slice spiral CT,The data was transmitted to workstation and the images were reconstructed with the techniques of multiple planar reconstruction(MPR),volume rendering technique(VR) and surface reconstruction(CRP)in order to observe the lumbar spondylolysis and vertebral slip,calculate display rate,screen out the best ways of reconstruction.Results 74 lumbar spondylolysis were found in 38 cases,which were found by 64-slice spiral CT and the image reconstruction technique.In the cases 28 cases were the I degree slip of upper lumbar,6 cases were the II degree slip of upper lumbar,1 case was the III degree slip of upper lumbar;3 cases were no slippage.In various post-processing technology,maximum intensity projection CPR on lumbar spondylolysis and spondylolisthesis showed the highest rates,are 100%.Conclusion the 64 layer spiral CT volume scanning and postprocessing techniques has higher application value in the diagnosis of lumbar spondylolysis and spondylolisthesis,and maximum intensity projection CPR have highest diagnostic value.