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A total of 556 patients with 769 intracranial aneurysms, of which 256 were unruptured and 513 were ruptured, were included in the present study. The patients were divided into three age groups: those aged 59 years or younger, those aged 60 to 69 years, and those aged 70 years or older. Small aneurysms of 4 mm or less in diameter were more common in the(More)
A 63-year-old woman was admitted because of right hemiparesis. Both computed tomography scan and magnetic resonance imaging revealed a mass lesion in the left parieto-occipital lobe. Twenty years previously, meningioma of the left parieto-occipital region was removed at another hospital, and a dural plasty was performed using a silastic dural substitute.(More)
A case of an 11-month-old infant with a growing skull fracture is described. The patient was admitted with disturbance of consciousness and left hemiparesis after a severe head injury. A pulsating protrusion appeared over the fracture line 1 month later. Color Doppler sonography revealed cerebral herniation and cystic lesion via the bony defect, together(More)
A case of visual perseveration attack in the right superior quadrantic visual field caused by left transverse-sigmoid sinus dural arteriovenous fistula (AVF) was reported. A 75-year old right-handed man noticed that when he saw an object, the image sometimes persisted even after he looked away or the object was removed. The palinoptic images always appeared(More)
A low-power nonvolatile programmable-logic cell array is proposed for energy-constrained applications such as wireless sensor nodes and mobile apparatuses. A 64x64 programmable-logic cell array includes a 9.2-Mbit nonvolatile switch, namely atom switch, as the routing switch and configuration memory. A 16-bit arithmetic logic unit, which is a building block(More)