Articles: vertigo.
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The purpose of this study was to determine whether or not the vertebral flow of patients with vertigo and normal brain magnetic resonance (MR) images was decreased in comparison with normal controls. ⋯ In this study, the majority of patients had normal CBF. This method is clinically useful for estimating CBF.
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Vertigo is the most common symptom of transient ischemia within the vertebrobasilar system. Episodes typically come on abruptly and last minutes. ⋯ Isolated cerebellar infarction can mimic peripheral vestibular disorders because vertigo and imbalance are the main symptoms with both disorders. Modern neuroimaging techniques have markedly improved diagnostic capabilities.
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In order to evaluate diagnostic usefulness of MRI in vertebrobasilar insufficiency (VBI), we performed magnetic resonance imaging (MRI) and MR angiography (MRA) in 90 patients presenting vertigo and dizziness as an initial and cardinal complaint. High signals observed by T2-weighted imaging in the basal ganglia (44.4%) or pontine base (48.9%) were more frequently seen in the possible VBI group than in the controls (p < 0.001). ⋯ Vertebral artery asymmetry (45.6%) or basilar artery twisting (41.1%) as shown by MRA was also significantly more frequent in the patients than in the controls (p < 0.05). In conclusion, MRI and MRA were considered to be useful in making a clinical diagnosis of VBI in such patients.