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The aim of this study was to examine the clinical characteristics and angiographic findings of spontaneous idiopathic subarachnoid hemorrhage (ISAH) and to compare these with those of aneurysmal SAH (ASAH). We retrospectively reviewed the clinical characteristics and venograms of 118 consecutive patients with ISAH during the past 10years for possible(More)
The purpose of this study was to investigate the potential value of neuroendoscopic biopsies in pediatric patients with peri- or intraventricular tumors. From 2001 to 2008, 49 pediatric patients (mean age, 12.16 years) with tumors located in the intraventricular or paraventricular areas underwent neuroendoscopic biopsy, with or without simultaneous(More)
OBJECTIVE It is usually difficult to perform the neuroendoscopic procedure in patients without hydrocephalus due to difficulties with ventricular cannulation. The purpose of this study was to find out the value of navigation guided neuroendoscopic biopsy in patients with peri- or intraventricular tumors without hydrocephalus. METHODS Six patients with(More)
Endovascular treatment of intracranial aneurysms can be technically challenging in cases of wide necks or unfavorable dome-to-neck ratio. Coils deployed without supporting devices may herniate from the aneurysm sac into the parent artery, causing thromboembolic complications or vessel occlusion. Therefore, alternative strategies for managing wide-necked(More)
PURPOSE To evaluate factors responsible for the variability between intended and achieved corneal-flap thickness during femtosecond laser-assisted laser in situ keratomileusis (LASIK). METHODS A prospective, nonrandomized, case study was performed on 35 eyes of 18 consecutive patients who underwent LASIK surgery using the 60 kHz femtosecond laser(More)
We propose an "accessibility infrastructure" view to understanding accessibility in real-world settings for people with visual impairments in the Global South. We study six cities --- Blantyre, Freetown, Kigali, Mumbai, San Jose, and Seoul --- all major cities from signatory nations of the United Nations Convention on the Rights of Persons with Disabilities(More)
This survey of 101 working-age professionals in Seoul, South Korea, and Bangalore, India, examines the drivers and impediments in the adoption and use of smartphonesamong visually impaired residents in two urban settings. Using in-depth interviews with 10 respondents in each city, we found three factors that influence technology use.These are the initial(More)
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