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目的利用超顺磁性氧化铁颗粒(USPIO)增强MRI评估实验性新生儿兴奋毒性脑损伤模型中脑室旁白质改变的可行性。材料与方法对14只新生鼠颅内注射鹅膏蕈氨酸诱发脑实质病变。对7只脑病变新生鼠(A组)和5只正常对
Objective To evaluate the feasibility of using the paramagnetic iron oxide particles (USPIO) enhanced MRI to assess the changes of left ventricular white matter in experimental neonatal excitotoxic brain injury model. MATERIALS AND METHODS Intrathecal administration of ibotenic acid to 14 neonatal rats induced brain parenchymal lesions. Seven encephalopathy newborn rats (group A) and five normal pairs