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The Diagnostic Evaluation of MRI in Patients with Wallenberg Syndrome

CHEN Wen-jun~*,LIN Liang,CUI Min.~*Department of Neurology,General Hospital,Guangzhou Martial District,Wuhan 430070,China  
Objective: The diagnostic significance of MRI and MRA in patients with Wallenberg syndrome was evaluated.Methods: Twenty adult patients diagnosed to have Wallenberg syndrome based on the clinical manifestations were analyzed.MRI was also performed on all the patients,and magnetic resonance angiography was carried out on 15 patients.Results: Out of the 20 patients,18 showed a lateral medullary infarction corresponding to clinical defects on MRI images,and 2 patients with the infarction beyond the medulla.In detail,5 patients presented a lateral medulla infarct alone,13 patients with an infarct involving the medulla and pons or the ipsilateral cerebella or occipital lobe,1 patients with a pontine infarction alone,and 1 patients with the cerebellar infarction alone.Out of the 15 patients on whom the MRA was executed,occlusions or dissecting or stenosis in the ipsilateral vertebral artery were shown.Conclusion: The combined use of MRI and MRA provides a reliable diagnostic method for illustrating the infarction site and corresponding vessels in patients with Wallenberg syndrome.
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