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  • Title: [Pathophysiological diagnosis of facial paralysis using 3-D MRI].
    Author: Ishihara T, Hirata K, Yuki N, Sato T.
    Journal: No To Shinkei; 2001 Apr; 53(4):341-4. PubMed ID: 11360473.
    Abstract:
    Bilateral facial paralysis(facial diplesia) is often observed in Guillain-Barré syndrome(GBS) and Fisher's syndrome (FS). We tried to observe injured facial nerves using three-dimensional(3-D) MRI in facial diplesia due to GBS and its variants and examined function of blood nerve barrier and clinical use of 3-D MRI for detecting injured facial nerves. In the four patients with GBS and its variants(GBS three cases, FS one case), while routine brain MRI did not show any abnormal findings, contrast-enhanced 3-D MRI revealed Gd-enhancement of the facial nerves. On the other hand, only one case showed visualization using contrast-enhanced 3-D MRI in twelve cases of Bell's palsy. Therefore, it may be presumed that the reason why the significantly higher rate of visualization in facial paralysis in GBS and its variants than in Bell's palsy is attributable to a difference in the mechanism of injury or the extreme seriousness of the disease. In conclusion, the observation of facial nerve using 3-D MRI was very useful to know the condition of the facial diplesia in GBS and its variants.
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