【摘要】 目的探讨产后子痫并可逆性后部白质脑病综合征的MR影像。表现特点。方法对16例经过临床和颅脑MR扫描确诊的产后子痫并可逆性后部白质脑病综合征进行回顾性分析。16例均行常规MR平扫(T1Flair、T2WI、TF2Lair及DWI),8例同时进行了MRV扫描,9例治疗后进行二次MR平扫复查。结果 MR显示:病灶位于双侧性顶、枕叶12例、单侧顶枕叶1例、额叶2例、基底节区5例,DWI多数病例表现为等或相对低信号,MRV均提示无血栓形成。9例二次MR平扫复查示明显吸收好转或基本吸收。结论产后子痫并可逆性后部白质脑病综合征好发于顶枕叶,少数见于额叶,基底节区,T2WI和T2Flair较为敏感。更多还原

【Abstract】 Objective To investigate the MRI characteristics of eclampsia postpartum and reversible posterior leukoencephalopathy syndrome(PRLS).Methods 16 cases diagnosed by clinical and brain MRI of eclampsia postpartum and PRLS were retrospectively analysed.All of them had plain MRI imaging routinely(T1 Flair,T2WI,T2FLAIR and DWI),and 8 cases with MRV,after treatment,9 cases had second plain MR to recheck.Results MR displayed that 12 cases of lesions were located in the bilateral parietal and occipital lobes,1 case in unilateral parietal and occipital lobe,2 cases of lesions in frontal lobe,and 5 cases in basal ganglia region.Most of the cases manifested as a relatively low signal on DWI.MRV showed all the cases with no thrombosis.9 cases of secondary MR showed significantly resorpted or mainly resorpted.Conclusion Postpartum eclampsia and PRLS often occured in the parietal and occipital lobes,few were found in the frontal lobes and basal ganglia region.T2WI and T2Flair were more sensitive.DWI and ACD map could be used to distinguish between vasogenic edema or cytotoxic edema.更多还原