| Objective:To discuss the application value of multi-layer screw CT (mulitislice spiral computed tomography MSCT) and the post-processing technology in the diagnosis lumbar vertebra canyon department crack diagnosis.Methods:analysis of the 2005-2009 admitted clinically diagnosed 50 cases of isthmic spondylolisthesis CT scan and conventional MSCT scanned images of checkout has no significant differences, depending on the case of clinical features and imaging findings take different surgical methods and 48 cases of postoperative follow-up and evaluation of the operation. Results:MSCT surpasses the conventional CT scanning obviously in the demonstration of canyon department crevasse aspect.Significant difference was observed comparing both(P< 0.05); MSCT and the reconstruction image showed marked advantages in demonstrating ends' dislocation.Both scannings pesented significant difference (P< 0.01); We compared two techniques in exploring the formation of osteophyte in small articulars and gained similar results. No difference was observed in presenting neurocanal narrow aspect through conventional CT and MSCT and the reconstruction image (P> 0.05); Postoperative follow-up of 48 cases of patients, the surgery, the imaging of 29 cases for fusion, Fusion 91.55%, bone without obvious differences (P> 0.05). Surgery:29 cases (60.6%), benign and 12 cases (26.8%),4 cases (8.4%), no change in 3 cases (4.2%)。Conclusion:spiral CT scan after image postprocessing on spondylolysis diagnostic scanning than conventional CT, CT can lead to General scanning technology of misdiagnosis, misdiagnosis, spondylolysis diagnosis, treatment and surgery to improve relevance;... |