Objective To study the diagnostic significance of spiral CT(SCT)on thoracolumbar spine fracture.Methods SCT findings of 21 cases(26 vertebrae)of thoracolumbar spine fracture were analysed.Results There were six vertebrae with simple flexible compression fracture,20 vertebrae with fragmental compression fracture and two vertebrae with fracturedislocation.The display rates of involvement of the middle axia and spinal canal were 77% and 50% for SCT,which were much better than routine CT(61% and 38%).Conclusion SCT can be used to directly show the full pathological anatomy of thoracolumbar fracture,in order to obtain more valuable information for clinical classification and stability determination accurately.

Objective To summarize the CT manifestations of adenoid tonsic hypertrophy in children and evaluate clinical significance.Methods Twenty boys and 5 girls were diagnosed with adenoid tonsil hypertrophy,the ages from 13 to 15 years.CT scanning of nasal pharynx with 3 mm were performed in all cases.Results The thicken of adenoid tonsil hypertrophy was 13 mm to 25 mm. Sector shape of the lesion was presented in 14 cases,strip shape in 9 cases ,irregular shape in 2cases,eustachian tube stenosis or disappearance in 6 cases.The complications included:hypertrophy of tonsil in 13 cases,nasosinusitis in 11 cases,hypertrophic conchae in 21 cases,mastoiditis in 2 cases.Conclusion CT scan can accurately show adenoid tonsil hypertrophy and irregular stenotic nasopharyneal meatus and complications. CT will be the first choice in examination of adenoid tonsil hypertrophy before operation.