.64-slice Ct Image Post-processing Technology Etiological Diagnosis Of Spondylolisthesis

Objective: To study the theoretical basis of 64-slice CT in application of facet joint, and how to realize the isotropic scan, effect of scanning and post-processing parameters to the imaging quality of facet joint by 64-slice CT, clinical value of using above parameters correctly, and find out the best scanning and post-processing parameters. Materials and methods: Different parameters of scanning and post-processing were used to visualize direct-scanning transaction images ,post-processing transaction and long-axial MPR images and VR images of 60 patients. The qualities of all the images were valued and compared, the scores given were analyzed statically. Results: In facet joint CT images, the parameters of a smaller slice-thickness together with a larger pitch are better than that of a larger slice-thickness together with a smaller pitch. The best post-processing parameters for direct scanning images and MPR images are slice thickness 0.6mm, pitch 1.5, reconstruction increment 50%, high-resolution algorithm. To VR images, soft tissue algorithm is remarkly better than high-resolution algorithm.Conclusion: The qualities of facet joint CT images can be greatly influenced with various scanning and post-processing parameters and the above best parameters make it reality to get isotropic and best long facet joint images in the shortest time with the least X-ray tube exhaustion by 64-slice CT.