CT Diagnosis of Osteolytic Metastases of the Vertebral Column / 实用放射学杂志

ABSTRACT

Objective To study CT value of diagnosis and identified diagnosis in osteolytic metastases of the vertebral column through describing their CT manifestation.Methods In 46 patients, 72 vertebrae osteolytic metastases were analyzed and compared with X-ray findings of 28 cases.Results In 72 vertebrae osteolytic metastases, there were destruction of 74 corpus vertebrae in 45 patients, of pediculus arcus vertebraes in 22 cases, of processus transverses in 15 cases, of processus spinosus in 11 cases and lamina vertebrae in 11 cases. Micrometastases were concentrated in corpus vertebrae(45/49). CT found the rate of bone-destruction, affection of vertebrae canal and soft tissue around vertebrae were 100%, 67.8% and 71.4%, but the corresponding rates were only 53.6%, 14.3% and 32.1% by X-ray. Conclusion Vertebral column metastases destructed corpus vertebrae at first, vertebral metastases are the origin or base of destruction of the pediculus arcus vertebrae, lamina vertebrae, processus transverses and processus spinous. CT scanning is more sensitive in finding and evaluating the lesions than X-ray plain film.