CT与MRI诊断脑神经胶质瘤的临床分析

CT and MRI in diagnosis of cerebral neurogliocytoma

目的总结分析CT与MRI在脑神经胶质瘤诊断中的应用价值。方法选择2010年1月-2013年6月期间我院收治的60例脑神经胶质瘤患者为研究对象,所有患者先后进行头颅CT及MRI扫描,分析脑神经胶质瘤的CT与MRI图像特征。结果 60例患者肿瘤直径为1.6-8.8 cm,其中幕上45例、幕下15例。术前CT扫描发现53例低密度及混杂密度肿块、7例高密度肿块。MRI扫描30例肿瘤有实性囊性坏死小肿块,T1WI及T2WI序列扫描中结节样及弧形钙化灶表现低信号,相对灰质肿瘤实性部分为T1WI低信号、T2WI及FLAIR为高信号,增强扫描未见强化。WHO神经胶质瘤分级情况为：Ⅰ-Ⅱ级50例、Ⅲ-Ⅳ级10例。术后6个月内8例死亡,术后随访3年中37例病情稳定、15例接受二次手术。结论 CT与MRI在脑神经胶质瘤诊断中应用价值极高,对于囊变实性肿块及壁结节囊性肿块患者要高度警惕脑神经胶质瘤的可能性。

Objective To explore the value of CT and MRI in the diagnosis of cerebral neurogliocytoma. Methods Sixty cases of cerebral neurogliocytoma were selected from our hospital were performed by CT and MRI scans and analyze the characteristics of CT and MRI images outcomes. Results The tumor diameter was 1. 6 - 8. 8 cm in 60 cases,including 45 cases of supratentorial neoplasms and 15 cases of Subtentorial neoplasms. 53 cases of low density and mixed density mass and 7 cases of high density mass were found in the CT scan before operation. MRI scan of 30 cases of tumor with solid cystic necrosis of small mass,T1 WI and T2 WI sequence scan in the nodules and Arc calcification showed low signal,the ectocinerea tumor solid part showed low signal of the T1 WI,high signal of FLAIR and T2 WI without enhancement in enhanced scan. The grading of WHO neurogliocytoma was as follows： 50 cases of grade I - Ⅱand 10 cases of grade III - IV grade. 8 cases died in 6 months after operation. 37 cases were followed up for 3 years,cases remained stable,15 cases underwent two operations. Conclusion CT and MRI have a high value in the diagnosis of neurogliocytoma. The possibility of neurogliocytoma in patients with cystic solid mass and cystic masses of wall is high.