AJNR. American journal of neuroradiology
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AJNR Am J Neuroradiol · Apr 2009
Comparative Study Clinical TrialFirst clinical study on ultra-high-field MR imaging in patients with multiple sclerosis: comparison of 1.5T and 7T.
Higher magnetic field strengths and continuous improvement of high-resolution imaging in multiple sclerosis (MS) are expected to provide unique in-vivo and non-invasive insights in pathogenesis and clinical monitoring. The purpose of this study was to investigate the potential of high-resolution imaging of MS lesions in vivo comparing 7T with conventional 1.5T. ⋯ Ultra-high-field imaging of patients with MS at 7T was well tolerated and provided better visualization of MS lesions in the gray matter and demonstrated structural abnormalities within the MS lesions themselves more effectively.
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AJNR Am J Neuroradiol · Apr 2009
Clinical and angiographic results of coiling of 196 very small (< or = 3 mm) intracranial aneurysms.
Coiling of very small (< or = 3 mm) aneurysms is considered controversial because of technical difficulties and a higher rate of procedural aneurysm ruptures. In this study, we report clinical and angiographic results of coiling of aneurysms 3 mm or smaller in comparison with larger aneurysms in a large, single-center cohort of patients. ⋯ Coiling of very small aneurysms was technically feasible, with good results. Although procedural aneurysm rupture was significantly more frequent in very small aneurysms, this did not lead to increased overall morbidity and mortality rates. Retreatment rate was lower than for larger aneurysms.