Toshiki Ikeda

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BACKGROUND Cerebral branch atheromatous disease (BAD) are more likely to experience progressing stroke and neurological deterioration compared with lacunar infarction, although these small vessels occlusions are difficult to discriminate in acute phase of ischemic stroke. Advanced glycation end products including pentosidine have been implicated in(More)
This study tested the hypothesis that dynamic cerebral autoregulation (AR) remains intact before and after the excision of human arteriovenous malformations (AVM). In 12 patients (six female and six male; mean age, 34 years) harboring cerebral AVMs (AVM group), and 15 patients (nine female/six male; mean age, 49 years) with deep-seated lesions (e.g., small(More)
In terms of neurogenic cerebral blood flow (CBF) control, the activity of the sympathetic nervous system (SNS) has a regulating effect. The impact of a manipulation of both the peripheral (via the perivascular sympathetic net) and central components (via the intracortical noradrenergic terminals originating from the locus coeruleus) on CBF-and especially on(More)
OBJECTIVE To test the hypothesis that the sympathetic nervous system plays a role in cerebral blood flow regulation in patients with arteriovenous malformations (AVM). METHODS Cortical interstitial norepinephrine was measured by means of microdialysis, regional cerebral blood flow was measured by a thermal diffusion technique, and regional oxygen(More)
We investigated and evaluated the detection of simulated lesions in various interstitial lung diseases using the dual-energy subtraction radiography method and flat-panel detector (FPD) images. We obtained a FPD system (GE Revolution XR/d), and employed dual-energy 60 kV and 130 kV exposure techniques. Three types of lung lesions, namely, micro-nodule,(More)
Formation of a new saccular aneurysm after successful treatment of ruptured aneurysm has recently raised significant clinical concerns; however, de novo formation and rupture of a dissecting aneurysm has not been discussed. The authors report on a 42-year-old man who initially sought treatment for a ruptured saccular aneurysm of the right middle cerebral(More)
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