CAJ | 학술논문

目的探讨DWI在儿童病毒性脑炎诊断中的价值.方法回顾性分析36例儿童病毒性脑炎的MR表现,分析病变部位、大小、在常规MRI序列及DWI序列上的信号强度及其与发病时间的关系.结果病变主要呈长T1长T2信号,病变主要累及大脑皮层及基底节、丘脑.36例病例中有18例DWI显示病变范围及信号强化对比优于T2WI序列,平均发病时间约8.2天;有14例T2WI序列显示优于DWI序列,发病时间约12.6天;有4例病变在DWI及T2WI序列上显示大致相仿,发病时间约7.8天.结论常规MRI及DWI对其不同阶段的病理改变显示优势各不相同,两种检查技术互补有利于对病毒性脑炎的早期、准确诊断.
목적 탐토DWI재인동병독성뇌염진단중적개치.방법 회고성분석36례인동병독성뇌염적MR표현,분석병변부위、대소、재상규MRI서렬급DWI서렬상적신호강도급기여발병시간적관계.결과 병변주요정장T1장T2신호,병변주요루급대뇌피층급기저절、구뇌.36례병례중유18례DWI현시병변범위급신호강화대비우우T2WI서렬,평균발병시간약8.2천;유14례T2WI서렬현시우우DWI서렬,발병시간약12.6천;유4례병변재DWI급T2WI서렬상현시대치상방,발병시간약7.8천.결론 상규MRI급DWI대기불동계단적병리개변현시우세각불상동,량충검사기술호보유리우대병독성뇌염적조기、준학진단.
Objective To investigate the value of diffusion weighed imaging (DWI) for the diagnosis of viral encephalitis in children.Methods The magnetic resonance (MR) findings of 36 children with viral encephalitis were retrospectively analysed.The location,size,signal intensity,as well as the time from the onset of neurologic symptoms to MR examination were studied.Results The lesions showed long T1 and long T2 signal intensities.Cerebral cortex,basal ganglia,thalamus were most frequently involved.Among the 36 cases,the lesions in 18 cases were shown clearer and more distinct on DWI than on conventional T2WI,the average time from the onset of neurologic symptoms to MR examination was 8.2 days.14 cases were shown clearer on conventional T2WI than on DWI,the average time from the onset of neurologic symptoms to MR examination was 12.6 days.4 cases were shown similarly on DWI and T2WI,the average time from the onset of neurologic symptoms to MR examination was 7.8 days.Conclusion DWI and conventional MRI have different advantages to show differrent pathological changes in different clinical stages.DWI combined with MRI has potential value in the early and precise diagnosis of viral encephalitis.