脑转移瘤CT增强扫描的诊断与鉴别诊断

Diagnosis and differential diagnosis of enhanced CT imaging in brain metastatic tumor

目的:评价CT增强扫描对脑转移瘤的诊断与鉴别诊断价值。方法:回顾性分析经病理或治疗随访证实的20例脑转移瘤,总结其平扫和增强扫描的CT征象。结果:单纯幕上双侧大脑半球内发现病灶的有13例,平扫发现19个病灶,增强扫描发现25个病灶;单纯幕下双侧小脑半球内发现孤立病灶2例,平扫3个病灶,增强扫描发现5个病灶,幕上幕下同时发现病灶的5例,平扫发现13个病灶,增强扫描发现19个病灶。结论:CT增强扫描能更好地发现平扫时不能显示的病灶,对脑转移瘤的诊断和鉴别诊断有重要的临床价值和意义。

Objective： To access the diagnostic and differential values of enhanced CT imaging in the patients with brain metastatic tumor.Methods： 20 patients with brain metastatic tumor confirmed by pathology or clinical were analyzed retrospectively,and then the characteristics of both conventional imaging and enhanced CT were observed.Results： Brain metastatic tumor were localized on cerebral hemisphere in 13 patients,on cerebellums in 2 patients and on both cerebral and cerebella hemispheres in 5 patients.The metastasis numbers shown by conventional images were 19,3 and 13 cases respectively and the numbers found by enhanced images were 25,5,and 19 cases respectively.Conclusion： The contrast enhanced CT has been proved to be more sensitive than conventional CT in detecting the number of brain metastatic tumor,and it has the important clinical value and significance in the diagnosis and differential diagnosis of brain metastatic tumor.