AJNR. American journal of neuroradiology
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AJNR Am J Neuroradiol · Dec 2014
Multicenter StudyTransorbital sonography in acute optic neuritis: a case-control study.
Acute unilateral optic neuritis is associated with a thickening of the retrobulbar portion of the optic nerve as revealed by transorbital sonography, but no comparison has been made between nerve sheath diameter and optic nerve diameter in patients with acute optic neuritis versus healthy controls. We evaluated optic nerve sheath diameter and optic nerve diameter in patients with acute optic neuritis and healthy controls and compared optic nerve sheath diameter and optic nerve diameter with visual-evoked potentials in patients. ⋯ Transorbital sonography is a promising tool to support the clinical diagnosis of acute optic neuritis. Further studies are needed to define its specific role in the diagnosis and follow-up of optic neuritis.
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Conventional MR imaging typically yields normal images of the brain or indicates lesions in areas of high aquaporin expression in patients with neuromyelitis optica. Diffusional kurtosis imaging was applied in patients with neuromyelitis optica to determine whether this technique could detect alterations in diffusion and diffusional kurtosis parameters in normal-appearing white matter and to explore the relationship between diffusional kurtosis imaging and DTI parameters. ⋯ This study demonstrated differences in conventional diffusion and diffusional kurtosis parameters, especially radial kurtosis, in the normal-appearing white matter of patients with neuromyelitis optica compared with healthy controls. Larger studies of patients with neuromyelitis optica should be performed to assess the potential clinical impact of these findings.
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AJNR Am J Neuroradiol · Nov 2014
The success of flow diversion in large and giant sidewall aneurysms may depend on the size of the defect in the parent artery.
Flow diverters are designed to occlude aneurysms while preserving flow to jailed arterial branches. We postulated that treatment success depended on the size of the aneurysm ostium or defect in the parent artery. ⋯ The effects of flow diversion may vary with the size of the aneurysm ostium.
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AJNR Am J Neuroradiol · Nov 2014
Multicenter StudyWEB intrasaccular flow disruptor-prospective, multicenter experience in 83 patients with 85 aneurysms.
The safety and efficacy of WEB flow disruption have been analyzed in small, retrospective series. The object of this study was to evaluate the safety and efficacy of WEB flow disruption in a large, multicenter, prospectively collected population. ⋯ In this large prospective series of patients, WEB flow disruption was a safe and efficient technique.
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AJNR Am J Neuroradiol · Nov 2014
"Y" and "X" stent-assisted coiling of complex and wide-neck intracranial bifurcation aneurysms.
Stent-assisted coiling with two stents has been described in some series for the treatment of complex and wide-neck bifurcation aneurysms. Our aim was to report our experience of a stent-assisted coiling technique with double stents in "Y" and "X" configurations, with emphasis on safety, feasibility, and efficacy. ⋯ Y and X stent-assisted coiling of complex and wide-neck intracranial bifurcation aneurysms is an effective technique.