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颅内血管平滑肌瘤的磁共振及功能成像特点(附1例报告) 被引量：3

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摘要 目的探讨颅内血管平滑肌瘤的磁共振及功能成像表现,为临床诊断提供依据。方法结合文献,回顾性分析经手术病理证实的1例血管平滑肌瘤的常规磁共振成像(MRI)及功能成像[包括灌注加权成像(PWI)、磁共振波谱成像(MRS)及磁敏感加权成像(SWI)]表现。结果该病灶位于后颅窝小脑幕下方,与直窦及窦汇相邻。MRI平扫T1WI呈低信号,T2WI呈不均中等信号,内可见点状及条状低信号;扩散加权成像(DWI)呈等信号,病灶周围未见明显水肿影,增强扫描病灶呈明显不均匀强化,病灶局部可见未强化区域,呈从后下部向前上方渐进性强化的趋势;PWI示病灶后下方局部脑血流容积(CBV)、脑血流量(CBF)明显升高,其余部分CBV及CBF明显降低;MRS示病灶内N乙酰天门冬氨酸(NAA)、胆碱复合物(Cho)及肌酸(Cr)峰下面积均明显降低;SWI示病灶内多发点状低信号血管影。结论颅内血管平滑肌瘤的多模式MR影像学特点有一定特异性,此对其诊断有一定价值。
作者 郭军
机构地区 天津市环湖医院
出处 《山东医药》 CAS 2013年第7期66-68,共3页 Shandong Medical Journal
关键词 颅内血管平滑肌瘤 磁共振成像 弥散加权成像 灌注加权成像 磁共振波谱成像 磁敏感加权成像
分类号 R445.2 [医药卫生—影像医学与核医学]
  • 相关文献

参考文献15

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二级参考文献43

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共引文献84

同被引文献37

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引证文献3

二级引证文献6

山东医药
2013年 第7期

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