MRI features of adult hypoxic-ischemic encephalopathy / 中国医学影像技术

ABSTRACT

Objective: To investigate the MRI features of adult hypoxic-ischemic encephalopathy. Methods: Data of 18 patients who underwent MR scanning after ischemia and hypoxia due to various reasons were collected and analyzed. Results: Among 18 patients, 17 were found with abnormal MRI signals, involving cerebral cortex, subcortical white matter, deep white matter, lateral ventricle white matter, corpus callosum, basal ganglia, hippocampus, thalamus, pons and cerebellum. Diffuse brain atrophy was shown in 9 patients, while plain T1WI showed hyper-intensity along the cerebral cortex or basal ganglia in 5 cases. Restricted diffusion was shown on DWI in 9 cases. Enhanced MR scanning was performed in 5 patients and showed mild gyral enhancement in cerebral cortex in 1 patient. MRI showed no obvious lesion in 1 case. Conclusion: MRI can display abnormal signals of hypoxic ischemic encephalopathy involving many brain regions. MRI features can not only reflect the severity of hypoxic-ischemic encephalopathy, but also predict treatment effect and evaluate the prognosis of patients.