Search results for "Magnetic resonance venography"
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Magnetic Resonance Venography of chronic cerebrospinal venous insufficiency in patients with associated multiple sclerosis
2011
Background: Multiple sclerosis (MS) is a chronic disease with not well understood etiology. Recently, a possible association of MS with compromised venous outflow from the brain and spinal cord has been studied (chronic cerebrospinal venous insufficiency – CCSVI). Angioplasties of internal jugular veins (IJV) and azygous vein (AV) have given promising results, with improvements in patients’ clinical status. Material/Methods: 830 patients with clinically defined MS were scanned from the level of sigmoid sinuses to the junction with brachiocephalic veins, as well as at the level of AV. T2-weighted, 2D TOF and FIESTA sequences were used. Results: The examination revealed a slower blood flow in…
Diagnostic accuracy of Doppler sonography and magnetic resonance venography for the assessmentv of impaired outflow from the internal jugular vein in…
2015
Objectives: This prospective study was aimed at evaluation of diagnostic value of Doppler sonography and magnetic resonance (MR) venography in the internal jugular vein territory. Material and methods: There were assessed 126 patients (252 internal jugular veins). The patients were initially diagnosed using Doppler sonography and MR venography, and then catheter venography of the veins was performed. For the purpose of this study catheter venography was regarded the reference test. We interpreted sonographic findings in the context of criteria proposed by Zamboni and criteria by International Society for Neurovascular Disease (ISNVD). We applied MR protocols aimed at flow assessment in the …