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目的:探讨FLAIR序列在早期小儿脑炎中的MRI表现及在早期脑炎诊断中的重要价值。方法:分析回顾45例病毒性脑炎患儿,重点分析病毒性脑炎在FLAIR序列中的表现。结果:病毒性脑炎在FLAIR序列优于SE序列中的T1WI和T2WI序列,对于多发或单发、对称或不对称的脑回样或片状病灶,主要位于皮层、皮层下及基底节-丘脑区病灶,MRI呈稍长T1稍长T2信号,FLAIR序列可更明显的检出脑沟内的线样高信号及脑实质内的片状高信号。结论:头部MRI检查,除常规自旋回波T1、T2序列外,FLAIR序列在检查早期脑炎中应列为常规检查,该序列在一定程度上为临床的早期诊断、鉴别诊断及早期临床治疗提供依据。
Objective: To investigate the MRI features of FLAIR sequence in early childhood encephalitis and its value in the diagnosis of early encephalitis. Methods: Forty-five children with viral encephalitis were analyzed retrospectively. The performance of viral encephalitis in FLAIR sequence was analyzed. Results: Viral encephalitis was superior to the T1WI and T2WI sequences in the SE sequence in the FLAIR sequence, and mainly in the cortex, subcortex and basal ganglia-thalamus for multiple or solitary, symmetrical or asymmetric brain retropharyngeal or focal lesions In the lesion area, the MRI showed a slightly longer T2 signal with a longer T1 and the FLAIR sequence detected the line-like high signal in the sulci and the platelet high signal in the brain parenchyma. CONCLUSIONS: In addition to conventional spin echo T1 and T2 sequences, the FLAIR sequence in head MRI should be considered as a routine examination in the examination of early encephalitis. This sequence is to some extent an early clinical diagnosis, differential diagnosis and early clinical treatment Provide evidence.