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目的探讨桥脑梗死的临床和影像学特点。方法对57例桥脑梗死的临床表现、MRI特点及危险因素进行回顾性分析。结果桥脑梗死的临床症状多样化,可表现为头晕以及脑干的交叉体征,亦可表现为大脑半球病变的体征。MRI可检出责任病灶。结论纯运动性偏瘫患者,如果出现构音障碍、头晕及共济失调时应考虑到桥脑梗死的可能。MRI检查有助于桥脑梗死的诊断。
Objective To investigate the clinical and imaging features of pontine infarction. Methods The clinical manifestations, MRI features and risk factors of 57 patients with cerebral infarction were retrospectively analyzed. Results The clinical symptoms of pontine infarction were diverse and manifested as signs of dizziness and crossings of brainstem, as well as signs of cerebral hemispheric lesions. MRI can detect responsible lesions. Conclusions Patients with purely motor hemiplegia should consider the possibility of pontine infarction in the presence of dysarthria, dizziness and ataxia. MRI helps to diagnose PTA.