Young-Cheol Weon

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PHACE syndrome is a neurocutaneous syndrome with the following features: posterior fossa malformations of the brain, large facial hemangiomas, arterial anomalies, cardiac anomalies and aortic coarctation, and eye abnormalities. We report a rare case of bilateral internal carotid artery agenesis with transcranial collaterals from the external carotid(More)
OBJECTIVE Limited coverage of the brain in the z-axis has been a drawback of perfusion CT. The purpose of this study was to evaluate the usefulness of perfusion CT with extended coverage in the z-axis for the assessment of acute stroke in an emergent clinical setting. MATERIALS AND METHODS Fifty-eight patients who underwent 80-mm-coverage perfusion CT(More)
OBJECTIVE The objectives of this study were to assess the performance of a newly designed separating stent-graft system with respect to the technical feasibility of transfemoral deployment, the maintenance of vessel patency, and stent deformity due to mechanical defects; and to evaluate its in vivo healing characteristics, including thrombus formation, and(More)
The purpose of this study was to evaluate the contribution of magnetic resonance imaging (MRI) to the diagnosis of septic thrombosis of transverse and sigmoid sinuses to analyze the different steps of the diagnosis and to identify the origin of the difficulties in diagnosis. This retrospective study included eight patients aged 53–81 years (mean age: 61.9(More)
Transient global amnesia (TGA) is characterized by a sudden onset of anterograde amnesia without alteration of consciousness or personal identity. Interestingly, recent studies have reported a high frequency of small high-signal abnormalities in the hippocampus with diffusion-weighted (DW) imaging, and ischemia has been proposed as an etiology of TGA. We(More)
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