先兆子痫后部可逆性脑病综合征的MRI表现及其与横窦引流模式的关系  

MRI manifestations of pre-eclampsia posterior reversible encephalopathy syndrome and its association with transverse sinus drainage pattern

作　　者：谭昱[1] 江魁明[1] 沈敏[1] 刘永熙[1] 钟熹[2] 麦慧[3] 

机构地区：[1]广东省妇幼保健院放射科,广东广州511400 [2]广州医科大学附属肿瘤医院放射科,广东广州510095 [3]广州医科大学附属第三医院放射科,广东广州510150

出　　处：《中国医学影像技术》2016年第2期200-203,共4页Chinese Journal of Medical Imaging Technology

基　　金：广东省科技计划项目(粤科规划字[2013]137号-8)

摘　　要：目的探讨先兆子痫(PE)后部可逆性脑病综合征(PRES)的MRI表现及其与横窦引流模式的关系。方法回顾性分析45例PE患者临床及MRI资料,其中早发型21例(孕周<32周),晚发型24例(孕周≥32周),根据是否伴有PRES分为PRES组(n=21)和无PRES组(n=24)。观察两组中横窦的引流模式、PRES组中PRES的发生部位及信号特征,并进行统计学分析。结果早发型PE患者中PRES发生率高于晚发型[66.67%(14/21)、29.17%(7/24),χ2=6.19,P=0.02]。PRES组常规MRI均呈长T1长T2,T2WI/FLAIR呈高信号,DWI呈等信号,ADC图呈高信号。45例PE患者中横窦引流模式为单侧优势型34例,PRES发生率为55.88%(19/34),均衡型11例,PRES发生率为18.18%(2/11),差异有统计学意义(χ2=4.70,P=0.02)。结论 PE患者并发PRES的MRI表现具有一定特征性,单侧横窦引流模式与PRES的发生有密切关系。Objective To explore MRI manifestations of pre-eelampsia posterior reversible encephalopathy syndrome （PRES） and its association with transverse sinus drainage pattern. Methods Clinic and MRI datum of 45 pre-eclampsia （PE） patients were retrospectively reviewed, among which 21 cases were early onset （gestational weeks （32 weeks）, 24 cases were late onset （gestational weeks ≥32 weeks）. According to whether had PRES, all patients were divided into PRES group （n=21） and non-PRES group （n=24）. Transverse sinuses drainage modal, part of PRES and signal features were observed, and statistic analysis was performed. Results The rate of PRES in early onset was higher than that in late onset （66. 67%[14/21] vs 29.17%0 [7/24], χ2 =6.19, P=0.02）. PRES group were showed long T1 long T2 on conventional MRI, hyperintense on T2WI/FLAIR, isointense on DWI, and hyperintensity on ADC. There were 34 cases with unilateral transverse sinus drainage modal in 45 patients, and PRES occurrence rate was 55.88 % （19/34） there were 11 cases with balanced drainage modal, and PRES occurrence rate was 18.18%（2/11） ; statistical difference was significant （χ2 =4.70, P=0.02）. Conclusion MRI manifestations of PRES has some characteristics, and unilateral transverse sinus drainage modal is closely related to PRES.

关 键 词：先兆子痫 横窦 磁共振成像 

分 类 号：R714.25[医药卫生—妇产科学] R445.2[医药卫生—临床医学]