中线颅内脂肪瘤的磁共振影像诊断  

MRI Diagnosis of Intracranial Lipoma

作　　者：林青[1] 贾文霄[1] 汪洁[1] 王玉群[1] 陈宏[1] 李琛玮[1] 代莉 刘忆梅 安华 

机构地区：[1]新疆医学院第一附属医院

出　　处：《临床放射学杂志》1996年第3期146-148,共3页Journal of Clinical Radiology

摘　　要：目的：颅内脂肪瘤ＭＲＩ特征性的信号表现及位置的中线性说明ＭＲＩ对诊断具有重要意义。材料与方法：对１６例ＭＲＩ诊断的颅内脂肪瘤进行回顾性分析总结。全部病例临床表现无特异性，均用Ｐｈｉｌｉｐｓ０．５Ｔ－Ⅱ型超导磁共振机采用自旋回波序列（ＳＥ）进行扫描，Ｔ１加权像ＴＲ＝５００～５２０／ＴＥ＝２５，Ｔ２加权像ＴＲ＝２２７３／ＴＥ＝９０，距阵２５６×２５６，行横轴、矢状及冠状位扫描，就其信号表现及颅内位置进行分析总结。结果：１６例颅内脂肪瘤在Ｔ１像及质子密度像均呈特征性的短Ｔ１高信号，在Ｔ２像呈脂肪抑制的灰色信号，与皮下脂肪及球后脂肪信号相同。其中１４例居颅内中线位置。Objective: MRI is important to diagnose the intracranial lipoma which shown the characteristic signal and special positions.Materials and Methods: 16 cases intracranial lipoma which diagnosed by MRI were retrospectively analysed.All of them have no specificity in clinical. Philip T5 Ⅱ super conductor magnetic resonance imaging system and spin echo sequences was used. T 1W: TR/TE 500/25; T 2W: TR/TE 2273/90. Matrix 256×256. We analyse the signal and position.Results: 16 cases intracranial lipoma shown on MRI were high intensity on both T 1W and proton, shown fat suppression gray signal in T 2W, similar to that of orbital and subcutaneous fat mass. 14 cases was positioned near middle line.Conclusion: MRI can be regarded as the best method for diagnose intracranial lipoma.

关 键 词：脂肪瘤 NMR 成像 诊断 脑肿瘤 

分 类 号：R739.410.4[医药卫生—肿瘤]