Diagnosis of lumber posterior marginal intraosseous cartilaginous node with multislice CT

Objective:To investigate the characteristics of lumber posterior intraosseous cartilaginous node(LPMN) with multislice CT(MSCT),and to determine effectiveness of MSCT in diagnosis of LPMN.Methods:Twenty-five cases with LPMN underwent MSCT scans,and multiplanar reformation(MPR) on axial,sagittal and coronal plane,on the basis of thin slice reformation.To analyze and compare the MRP on axial,sagittal and coronal plane.Results:MPR on axial plane well displayed of defect of lumber posterior and chip,and with disk herniation could be showed together.MRP on sagittal plane was an advantageous addition to on axial plane,and displayed spinal stenosis clearly.MRP on coronal plane could provide information helpful to the diagnosis of LPMN.Conclusion:MSCT and MPR had important value in diagnosis of LPMN.