摘要
Abstract
Objective: To analyze and contrast the clinical and imaging findings and explore the value of specific sequences of magnetic resonance imaging(MRI)in the diagnosis and cure of parturient with posterior reversible encephalopathy syndrome (PRES), cerebral venous-sinus thrombosis (CVST), cerebral infarction (CI) and encephalitis. Methods: The clinical and MRI imaging data of 35 patients with central nervous system disease were retrospectively studied. All of the patients received MRI examination with the sequences of T1WI, T2WI, FLAIR/T2WI, DWI, ADC and MRV. The clinical features and the characteristic signals of cerebral lesions were analyzed and compared, and the values of MRI different sequences in the diagnosis and treatment were evaluated. Results: The encephalic niduses of PRES were multifocal, symmetry, and showed low T1WI signal, high T2WI and DWI signal, and lowing ADC map. The position of encephalic niduses of CVST was in agreement with its drainaged venous sinus thrombosis with low T1WI and high T2WI signal, and they may be mingled with high T1WI and low DWI signal, increasing ADC map, if they were of bleeding. The position of encephalic niduses of CI was found in agreement with the corresponding artery distribution area with low T1WI and DWI signal, high T2WI signal and ADC map. The encephalic niduses of encephalitis were multifocal and showed low T1WI and DWI signal, high T2WI signal and increasing ADC map. Conclusions:There are similarity and difference in the clinical and imaging findings of PRES, CVST, CI and encephalitis. MRI is the first choice of the diagnosis, FLAIR/T2WI could increase the detection rates of the lesion, MRV, DWI, ADC examination are important in the correct diagnosis and prognosis.关键词
产褥期/脑后部可逆性脑病综合征/静脉窦血栓/核磁共振成像Key words
puerperium/posterior reversible encephalopathy syndrome/venous-sinus thrombosis/magnetic resonance imaging分类
医药卫生
