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亚急性脑实质内自发性出血的低场MR水抑制及弥散加权像分析 被引量:2

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摘要 目的分析亚急性脑实质内自发性出血低场磁共振成像(MRI)各序列血肿及周边脑组织信号表现及其诊断价值。方法回顾性分析经CT证实的32例亚急性自发性脑出血病例的水抑制成像(Flair)、弥散加强成像(DWI)图像,比较脑叶与深部脑组织血肿体积、血肿内部信号与周边脑组织信号有无差异,有无合并症。结果脑叶血肿13例,其中弧立出血8例,伴卫星灶5例,平均体积45.68ml;血肿内部Flair主要表现为高低混杂信号9例,中央低边缘高信号的晕4例;DWI血肿周围边缘区呈环状高信号6例,血肿周围区脑组织呈指状高信号7例,累及皮层4例。深部脑组织血肿17例,破入脑室内5例,血肿平均体积28.26ml;血肿内部Flair主要表现为高低混杂信号8例,主要表现为中央低等边缘高信号的晕9例;DWI血肿周围区脑组织呈短指状高信号3例,3例为环状稍高信号,11例为高信号与更高信号混合。单纯脑室内出血2例,呈等T1稍长T2团块状信号,Flair、DWI并脑室扩大。结论自发性亚急性期脑出血FLair、DWI成像有助于血肿内部及周围脑组织的定性诊断和与肿瘤性出血、脑梗死鉴别诊断。
机构地区 东莞市桥头医院
出处 《临床和实验医学杂志》 2010年第2期131-133,共3页 Journal of Clinical and Experimental Medicine
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