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目的探讨低场MRI机DWI序列在胼胝体梗死诊断与鉴别诊断中的应用价值。方法 17例经临床诊断为胼胝体梗死的病例,分析行常规序列及DWI检查的MRI表现,分析各序列间信号变化。结果胼胝体梗死急性期DWI序列阳性率较髙,比常规T2WI/T2WI-FLAIR敏感。急性后期DWI显示病灶不如T2WI-FLAIR敏感。结论 MRI是胼胝体梗死诊断的首选方法,DWI序列是急性胼胝体梗死诊断与鉴别中最敏感、最有效的方法。
Objective To investigate the value of low field MRI machine DWI sequence in the diagnosis and differential diagnosis of corpus callosum infarction. Methods Seventeen cases of corpus callosum infarction were diagnosed clinically. MRI findings of routine and DWI examinations were analyzed and the signal changes between the sequences were analyzed. Results The positive rate of DWI in the acute stage of corpus callosum infarction was higher than that in T2WI / T2WI-FLAIR. Acute late stage DWI showed lesions that were less sensitive than T2WI-FLAIR. Conclusion MRI is the first choice for the diagnosis of corpus callosum infarction. DWI is the most sensitive and effective method in the diagnosis and differential diagnosis of acute corpus callosum infarction.