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  • 1
    ISSN: 1432-1459
    Keywords: Neuro-Behcet's disease ; Magnetic resonance imaging ; Brain-stem auditory evoked potentials
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We studied central nervous system lesions in patients with neuro-Behcet's disease using magnetic resonance imaging (MRI) of the brain and recording of brain-stem auditory evoked potentials (BAEPs). MRI revealed abnormal findings in seven of eight patients. MRI studies demonstrated extensive regions with high intensity signal in the brain stem and/or basal ganglia on T2-weighted images obtained during the acute stage of the disease in three patients. One of these patients had a strongly gadolinum-enhanced round lesion in the lower pons. In four of the other five patients with chronic disease, brain-stem atrophy was observed on T1-weighted images. Atrophic changes were more severe in the brain stem than in the cerebellum. Abnormal BAEPs were observed in three patients and consisted of prolongation of interpeak latency of waves III-V and defects of wave III or V. Abnormal BAEPs were recorded in patients with severe inflammatory changes or progression of atrophic changes in the brain stem. Our findings show that MRI and BAEPs are useful in detecting the presence and assessing the degree of neurological involvement in patients with neuro-Behcet's disease.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1613-9674
    Keywords: 99mTc-RBC method ; Angiomatous lesions ; Magnetic resonance imaging ; Metal artifact ; Dental prostheses
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Seventeen cases in which red blood cells (RBCs) were labeled with99mTc (99mTc-RBC method) are reviewed to confirm the vascular nature of lesions. This study was undertaken to see whether the99mTc-RBC method is useful in terms of detecting angiomatous lesions, and also to determine the indications for this method. In one case, total removal revealed a good, correlation between the range of uptake and the actual tumor size. MR images definitively demonstrated tumor location and extension. When hemangioma is suspected, MR examination is the preferred modality to determine tumor extension, tumor mass, and invasion into the surrounding tissue. However, when it is suspected that the MR image is poor due to bulky metal artifacts, as in the case of dental prostheses, the99mTc-RBC method should be used because this method is only slightly influenced by metal artificts. In addition, this method should be applied when whole body screening is needed.
    Type of Medium: Electronic Resource
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