[1]陈 苑,程敬亮#,白 洁,等.颅内孤立性纤维瘤的MRI特征*[J].郑州大学学报(医学版),2017,(01):79-83.[doi:10.13705/j.issn.1671-6825.2017.01.021]
 CHEN Yuan,CHENG Jingliang,BAI Jie,et al.MRI features of intracranial solitary fibrous tumors[J].JOURNAL OF ZHENGZHOU UNIVERSITY(MEDICAL SCIENCES),2017,(01):79-83.[doi:10.13705/j.issn.1671-6825.2017.01.021]
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颅内孤立性纤维瘤的MRI特征*()
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《郑州大学学报(医学版)》[ISSN:1671-6825/CN:41-1340/R]

卷:
期数:
2017年01期
页码:
79-83
栏目:
应用研究
出版日期:
2017-01-15

文章信息/Info

Title:
MRI features of intracranial solitary fibrous tumors
作者:
陈 苑程敬亮#白 洁薛康康贝天霞张春艳
郑州大学第一附属医院磁共振科 郑州 450052
Author(s):
CHEN YuanCHENG JingliangBAI JieXUE KangkangBEI TianxiaZHANG Chunyan
Department of MRI,the First Affiliated Hospital,Zhengzhou University,Zhengzhou 450052
关键词:
孤立性纤维瘤 磁共振成像
Keywords:
solitary fibrous tumor magnetic resonance imaging
分类号:
R651
DOI:
10.13705/j.issn.1671-6825.2017.01.021
摘要:
目的:探讨颅内孤立性纤维瘤(I-SFT)的MRI特征。方法:回顾性分析12例经手术病理证实的I-SFT的MRI表现,12例均行MR平扫及增强扫描。DWI序列扫描后获得ADC图,测量肿瘤实质、瘤周水肿和肿瘤对应正常脑白质的ADC值。结果:肿瘤发生在幕上7例(其中侧脑室内1例),幕下2例,跨幕上、幕下3例; 2例与静脉窦分界不清,12例均见瘤周水肿。与脑实质相比,T1WI上5例呈等信号,3例呈稍低信号,4例呈混杂信号; T2WI上9例呈混杂信号,2例呈等信号,1例呈稍高信号,其中7例可见短T2信号,6例合并囊变; 3例可见迂曲流空血管影。增强扫描12例均明显强化,8例呈不均匀强化; 短T2信号区可见强化; 5例可见脑膜尾征。DWI上7例呈等信号,3例呈稍低信号,2例呈稍高信号; ADC图上8例呈混杂稍高信号,4例呈等信号; 12例伴瘤周水肿的I-SFT肿瘤实质、瘤周水肿、正常脑白质的ADC值差异有统计学意义(P<0.05),瘤周水肿部分最高。结论:MR平扫T2WI信号混杂,内可见低信号区,增强扫描肿瘤明显强化并伴短T2信号强化为I-SFT的特征性表现; ADC值可有效区分肿瘤实质与瘤周水肿、正常脑组织。
Abstract:
Aim: To study MRI features of intracranial solitary fibrous tumors(I-SFT).Methods: MRI findings of 12 cases of I-SFT confirmed by surgery and pathology were analyzed retrospectively. All patients underwent conventional and enhanced MRI scan. ADC map was obtained from DWI sequence, and ADC values of tumor, peritumoral edema and normal white matter in corresponding area were acquired.MRI findings and ADC values of I-SFT were analyzed.Results: The lesions were located in supratentorial(n=7),infratentorial(n=2), across supratentorial and infratentorial(n=3).Two cases had no clear boundary with venous sinus.Peritumoral edema was found in all cases.Compared with cerebral parenchyma,the tumors showed isointense in 5 cases,hypointense in 3 cases and mixed signal intensity in 4 cases on T1WI.On T2WI,the tumors were mixed signal intensity in 9 cases,isointense in 2 cases,slightly hyperintense signal intensity in 1 case,including low signal in 7 cases on T2WI and cystic portion in 6 cases.Three cases presented vascular flow signal.On enhanced T1WI,8 cases showed obviously heterogeneous enhancement,4 cases showed obviously homogeneous enhancement.It showed that enhancement in low signal area on T2WI.Dural tail sign was seen in 5 cases.On DWI,7 cases showed isointensity,3 cases showed hypointensity and 2 cases showed slightly hyperintensity.On ADC map,8 cases had mixed high signal intensity,and 4 cases had isointensity.The difference of ADC values among tumor parenchyma,peritumoral edema and normal white matter was statistically significant(P<0.05).Conclusion: Heterogeneous signal intensity on T2WI,enhancement of areas with low T2 signal intensity and obvious enhancement with low sigal area on T2WI of the tumor are MRI features of I-SFT.ADC is effective in differentiation of tumor parenchyma,peritumoral edema and normal white matter.

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备注/Memo

备注/Memo:
*河南省科技厅重点攻关项目 112102310703
#通信作者,男,1964年8月生,博士,教授,主任医师,研究方向:中枢神经系统的影像诊断,E-mail:cjr.chjl@vip.163.com
更新日期/Last Update: 2017-01-20