有关脑肿瘤的CT诊断

目的:总结脑肿瘤的CT表现及特征,探讨脑肿瘤的CT诊断价值。方法:收治脑肿瘤患者36例,均给予CT血流灌注成像扫描检查,分别统计并计算不同类型的肿瘤各灌注参数值以及其比值之间的差异,观察项目包括:脑组织的增强高度、峰值时间(TTP)、对比剂通过时间(MTT)、局部脑血流量(rCBF)与局部脑血容量(rCBV)。结果:36例患者其中脑膜瘤21例,脑转移瘤15例,脑膜瘤的局部脑血容量及比值显著高于转移瘤,P<0.05,但局部脑血流量与对比剂平均通过时间之间的差异无统计学意义,P>0.05,转移瘤的灌注曲线峰值显著低于脑膜瘤患者,P<0.05,峰值时间之间的差异无统计学意义,P>0.05。结论:CT灌注成像检查可帮助诊断与鉴别诊断脑膜瘤和脑转移瘤,具有较高的临床应用价值。

Objective：To summarize the performance and characteristics of brain tumors in CT,this paper discusses the brain CT diagnostic value.Methods：From January 2009 to December 2011 hospital during a total of 36 patients with confirmed brain tumor surgery patients as the research object,all give CT perfusion imaging scan,statistics and calculated respectively different types of cancer each parameter value and its ratio with the differences between observation projects including：brain of the increase height,TTP（peak time）,MTT（contrast agents through the time）,rCBF（regional cerebral blood flow）and rCBV（regional cerebral blood volume）.Results：36 patients meningioma of 21 cases,brain metastases in 15 cases,meningioma of local cerebral blood volume ratio and significantly higher than metastases,P〈0.05,but local cerebral blood flow and contrast agents by the difference between the average time is no statistical significance,P〈0.05,metastatic perfusion significantly below the peak curve meningioma patients,P〈0.05,the difference between the peak time no statistical significance,P〈0.05.Conclusion：CT perfusion imaging examination can help in the diagnosis and differential diagnosis meningiomas and brain metastases,with high value of clinical application.