不同期别脑出血MRI诊断及信号变化特点

发布时间：2018-01-11 01:01

本文关键词：不同期别脑出血MRI诊断及信号变化特点　出处：《脑与神经疾病杂志》2016年06期 　论文类型：期刊论文

【摘要】：目的探讨各期脑出血MRI诊断及信号演变特征,以提高对本病的诊断水平。方法分析临床确诊的65例脑出血患者MRI影像资料。结果 65例中,超急性早期(6h内)3例,T_1WI为等信号,T_2WI为等信号,T_2Flair为稍低信号,DWI为低信号,周围无水肿;超急性晚期(6~24h)7例,T_1WI为稍低信号,T_2WI为稍高信号,T_2Flair为稍低信号,DWI为低信号,周围轻度水肿;急性期(1~3d)8例,T_1WI为等信号,T_2WI为低信号,T_2Flair为极低信号,DWI为极低信号,周围中度水肿;亚急性早期(4~7d)7例,T_1WI为外高中低信号,T_2WI为低信号,T_2Flair为低信号,DWI为低信号,周围重度水肿;亚急性中期(8~15d)11例,T_1WI为高信号,T_2WI为外高中低信号,T_2Flair为外高中低信号,DWI为外高中低信号,周围中度水肿;亚急性晚期(16~30d)7例,T_1WI为高信号,T_2WI为高信号,T_2Flair为高信号,DWI为高信号,周围轻微水肿;慢性期(1~2个月)7例,T_1WI为高信号,T_2WI为高信号,周围有黑环,T_2Flair为高信号,周围有黑环,DWI为高信号,周围有黑环,病变周围无水肿;残腔期(3个月以上)15例,T_1WI为低信号,T_2WI为高信号,周围有黑环,T_2Flair为低信号,DWI为低信号,病变周围无水肿。结论不同期别脑出血的MRI表现具有特征性,超急性期、急性期出血在T_2Flair、DWI均表现为低信号,而亚急性期出血在T_1WI表现为高信号,慢性期、残腔期T_2WI病变周围有低信号环为特点。
[Abstract]:Objective to investigate the characteristics of MRI diagnosis and signal evolution in each stage of intracerebral hemorrhage in order to improve the diagnostic level of ICH. Methods the MRI imaging data of 65 patients with ICH were analyzed. Within 6 hours of hyperacute early stage, 3 cases showed iso-signal intensity on T _ 1WI and iso-signal on T _ 2WI and slightly low signal intensity on DWI on T _ 2Flair. There was no edema around them. In 7 cases of hyperacute late stage, 7 cases had low signal intensity on T _ 1WI and slightly hyperintense T _ 2WI on T _ 2WI, and low signal intensity on DWI and slight edema on T _ 2Flair. In the acute phase, 8 cases with T1WI showed iso-signal intensity and low signal intensity on T2WI. T2Flair showed extremely low signal intensity on DWI and moderate edema around T1WI. In 7 cases of subacute early T1WI, 7 cases had low signal intensity on T1WI and low signal intensity on T2WI. T2Flair showed hypointensity on DWI and severe edema around T1WI. In 11 cases of subacute metaphase, 11 cases had high signal intensity on T 1WI and low signal intensity on T 2WI. Th 2Flair was high and low signal intensity on DWI and low signal intensity on DWI. Moderate peripheral edema; In 7 patients with subacute late stage T1WI, 7 patients had high signal intensity on T 1WI and high signal intensity on T 2WI. T2Flair showed high signal intensity on DWI and slight edema around them. In 7 cases of chronic stage 1 ~ 2 months, the signal intensity was hyperintense on T _ 1WI and hyperintense on T _ 2WI, T _ 2Flair was high signal on T _ 2Flair, and DWI was high signal on DWI. There was a black ring around the lesion and no edema around the lesion. The residual cavity period (more than 3 months) was hypointensity on T _ 1WI and hyperintense on T _ 2WI, and low signal on T _ 2Flair. Conclusion the MRI features of different intracerebral hemorrhage in different periods are characterized by hypointensity in hyperacute phase and acute stage in T _ 2Flair _ 2 DWI. In the subacute stage, the signal intensity was high on T _ 1WI, and the hypointensity loop around T _ 2WI in chronic stage and residual cavity stage.
【作者单位】：河南科技大学附属黄河三门峡医院MRI科;郑州大学第一附属医院MRI科;
【基金】：中国电建集团水电十一局基金项目(2013112)
【分类号】：R445.2;R743.34
【正文快照】： MRI diagnosis for all phase cerebral hemorrhage and analysis characteristics of signal evolutionJING Yan-ping,ZHANG Jun,GAO Zheng-rong,LUO Bin,XU Xin-feng,NAN Xiao-dong,QIANG Kong-jun,ZHANG Yan,CHENG Jing-liang.Department of MRI,the Affiliate Huanghe San

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