Journal of neuroimaging : official journal of the American Society of Neuroimaging
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Diagnosis of tibial neuropathy has been traditionally based on clinical examination and electrodiagnostic studies; however, cross-sectional imaging modalities have been used to increase the diagnostic accuracy and provide anatomic mapping of the abnormalities. In this context, magnetic resonance neurography (MRN) offers high-resolution imaging of the tibial nerve (TN), its branches and the adjacent soft tissues, and provides an objective assessment of the neuromuscular anatomy, abnormality, and the surrounding pathology. This review describes the pathologies affecting the TN and illustrates their respective 3 Tesla (T) MRN appearances with relevant case examples.
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A wide spectrum of pediatric corpus callosal diseases can occur in the pediatric age group. Cross-sectional magnetic resonance imaging plays an important role in the diagnosis of these patients. We reviewed our imaging record and collected cases of corpus callosal pathology. The purpose of this review is to illustrate the imaging features of various corpus callosal lesions encountered in children.
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Case Reports
Dramatic changes of a DWI lesion in a patient with acute ischemic stroke treated with IV t-PA.
A diffusion-weighted imaging (DWI) lesion changed dramatically in a hyperacute stroke case treated with intravenous tissue-plasminogen activator (IV t-PA). The initial hyperintense lesion on DWI disappeared completely immediately after IV t-PA treatment without improvement of neurological symptoms. However, the lesion reappeared 24 hours later. Successful thrombolysis can resolve DWI lesions but does not always improve the neurological symptoms.
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To describe a case of successful intracranial angioplasty and stenting of a symptomatic middle cerebral artery (MCA) stenosis using a transcervical approach. ⋯ Access of the intracranial circulation through direct CCA puncture may be a feasible alternative when the transfemoral access is not possible. The transcervical approach may be safe even with the use of antiplatelet medications and anticoagulation.
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We investigated how many contrast-transcranial Doppler (c-TCD) examinations should be performed on different days in patients with acute stroke. ⋯ c-TCD examinations should be performed on at least two different days to assess the prevalence of RLS.