A5041099476- Intracranial Aneurysms: Treatment and Complications
- Cerebrovascular and Carotid Artery Diseases
- Astro and Planetary Science
- Acute Ischemic Stroke Management
- Moyamoya disease diagnosis and treatment
- High-pressure geophysics and materials
- Astrophysics and Star Formation Studies
- Vascular Malformations Diagnosis and Treatment
- Stellar, planetary, and galactic studies
- Glass properties and applications
- Stroke Rehabilitation and Recovery
- Neurosurgical Procedures and Complications
- Mineralogy and Gemology Studies
- Solid-state spectroscopy and crystallography
- Traumatic Brain Injury and Neurovascular Disturbances
- Planetary Science and Exploration
- Venous Thromboembolism Diagnosis and Management
- Chemical Thermodynamics and Molecular Structure
- Neurological Disease Mechanisms and Treatments
- Geological and Geochemical Analysis
- Cardiovascular Health and Disease Prevention
- Meningioma and schwannoma management
- Calibration and Measurement Techniques
- Crystal Structures and Properties
- Intracerebral and Subarachnoid Hemorrhage Research
Kyoto University
2013-2025
Kyoto University Hospital
2025
Hikone Central Hospital
2021-2024
Kokura Memorial Hospital
2017-2022
Osaka University
1995-2017
Osaka Sangyo University
2013-2017
Kobe City Medical Center General Hospital
2010-2014
Planetary Science Institute
2013
Kyoto Pharmaceutical University
2002-2006
Osaka Health Science University
2002-2006
Background and Purpose— The clinical course of acute ischemic stroke with large vessel occlusion (LVO) is a multifactorial process various prognostic factors. We aimed to model this machine learning predict the long-term outcome LVO before endovascular treatment compare our method previously developed pretreatment scoring methods. Methods— derivation cohort included 387 patients, external validation 115 patients anterior circulation who were treated mechanical thrombectomy. statistical...
Background and objectives Although the recently marketed stent retriever thrombectomy devices have demonstrated a high recanalization rate favorable clinical outcomes, there is concern about risks of intimal injuries when pulling out in unfolded position. In this study, Solitaire Flow Restoration System Trevo were used histopathological comparison vascular caused by devices. Methods Rabbit carotid arteries experiments with Carotid artery samples harvested either 1 or 2 weeks postoperatively...
The mass absorption spectra of crystalline olivine particles with different ratios, between forsterite (, Fo) and fayalite Fa), were measured for synthetic natural samples in the mid- far-infrared regions. main strong peaks show a systematic shift to longer wavelengths as ratio decreases. In 10–17 μm region, these trends are very clear, peak positions good indicator composition dust grains. 20–100 also rather though they slightly complicated; intensity width various bands become weak broad,...
Background and Purpose— For patients with large vessel occlusion, neuroimaging biomarkers that evaluate the changes in brain tissue are important for determining indications mechanical thrombectomy. In this study, we applied deep learning to derive imaging features from pretreatment diffusion-weighted image data evaluated ability of these predicting clinical outcomes occlusion. Methods— This multicenter retrospective study included anterior circulation occlusion treated thrombectomy between...
We have carried out a quantitative trend analysis of the crystalline silicates observed in ISO spectra sample 14 stars with different evolutionary backgrounds. modeled using simple dust radiative transfer model and correlated results other known parameters. confirm abundance difference disk outflow sources, as found by Molster et al. ([CITE]). some evidence that enstatite over forsterite ratio differs, it is slightly higher sources respect to sources. It clear more data required fully test...
Crystalline Mg–Fe pyroxenes with different ratio ( and ) were synthesized in laboratory their absorption properties investigated the infrared region. The spectrum of ferrosilite () is reported for first time this work. Our study confirmed that Mg end members have sharp characteristic features far-IR region particular it easy to distinguish two types crystalline structures (orthorhombic monoclinic) wavelength range. In addition we find spectra depend on chemistry crystal structure material:...
The absorption spectra of the olivine particles different Mg/Fe content were measured in infrared spectral region between 5 and 100 μm, while continuously cooled down to 10 K. Measurements independently carried out on samples synthetic forsterite, natural olivine, fayalite at laboratories Kyoto Jena. positions bands for these detail up seven individual temperatures interval 300 K According widths wavelength regions, resolutions 2, 1, 0.5, 0.25, 0.2, 0.125 used order measure band with high...
The infrared reflectivities of crystalline forsterite (Mg2SiO4) were measured for the temperature range 295–50 K each crystal axis, between wavenumber 5000 and 100 cm−1. reflection spectra show clear dependence temperature; most bands become more intense, sharper their peak positions shift to higher with decreasing temperature. Reflection fitted dispersion formula damped oscillator model dielectric constants parameters in derived. absorption particle are calculated derived that features good...
The existence of silica within several debris disks has been suggested. Data on both the spectroscopy and annealing conditions various polymorphs need to be investigated, as these data are lacking incomplete in literature. We investigate prepare types silica, including α-cristobalite, α-quartz, coesite, stishovite, fused quartz, which natural, synthetic, or commercial samples. This paper presents a new study relevant under they form. compare results previous studies find that there...
Middle meningeal artery (MMA) embolization has been performed to treat refractory chronic subdural hematoma (CSDH) with good reported outcomes. We have treated three cases of CSDH MMA date, but there was a postoperative recurrence in one patient, which required craniotomy for removal and capsulectomy. blocks the blood supply from dura outer membrane order prevent recurrences CSDH. Histopathologic examination excised during showed foreign-body giant cells neovascular proliferation associated...
The Infrared Space Observatory (ISO) detected several sharp infrared features around young stars, comets, and evolved stars. These were identified as Mg-rich crystalline silicates of forsterite enstatite by comparison with spectra from laboratory data. However, certain emission bands in the observed cannot be because they appear at slightly shorter wavelengths than peaks spectra, where shapes particles are irregular. To solve this problem, we measured grains various (irregular, plate-like no...
Cerebral aneurysm rupture is a serious complication that can occur after flow diverter (FD) placement, but the underlying mechanisms remain unclear. We encountered case in which direct stress on wall caused by residual blood at inflow zone near neck during process of thrombosis FD placement appeared associated with rupture. The patient was 67-year-old woman progressive optic nerve compression symptoms large intracranial paraclinoid internal carotid aneurysm. had undergone treatment Pipeline...
BACKGROUND Although bypass surgery can reduce rebleeding risk in hemorrhagic moyamoya disease, the remaining after is not negligible. We hypothesized that postoperative persistence of periventricular anastomosis (PA), a fragile collateral manifestation, associated with rebleeding. METHODS This retrospective cohort study included patients disease who underwent direct at 2 institutions presentation. Either presence or absence PA was radiologically determined by grading each subtype,...
Background: Middle cerebral artery steno-occlusive disease (MCAD) has been recognized as a different clinical entity from moyamoya (MMD). Although MCAD can progress to MMD, the extent which patients actually and risk factors for this progression have not fully elucidated. Methods: We retrospectively reviewed with who underwent RNF213 genotyping. Demographic features, p.R4810K mutation, medical history, longitudinal changes in angiography were analyzed. Results: Sixty 81 affected hemispheres...
Background: Successive processing, a form of working memory function detected with the Das Naglieri Cognitive Assessment System (CAS), is selectively impaired in pediatric moyamoya disease (MMD). We aimed to test whether successive processing children MMD was improved after bypass surgery under control confounding. Methods: The present retrospective cohort study included who underwent direct or combined surgery. Neuropsychological tests including CAS were administered at two timepoints,...
Polarized infrared reflectance of large single crystals forsterite was measured for each crystal axis at frequencies between 5000 cm-1 and 100 with a resolution 1 cm-1. The spectra were analyzed based on classical dispersion theory. A set oscillator parameters crystalline axes obtained. Those are used to derive optical constants forsterite, which important analyses observed astronomical objects laboratory particle samples. Calculations absorption small particles using the bulk compared...
We study the absorption and scattering of X-ray radiation by interstellar dust particles, which allows us to access physical chemical properties dust. The composition is not well understood, especially on densest sight lines Galactic Plane. X-rays provide a powerful tool in this study. present newly acquired laboratory measurements silicate compounds taken at Soleil synchrotron facility Paris using Lucia beamline. profiles resulting from campaign were used pilot model along line low-mass...
OBJECTIVE The durability of embolization large aneurysms is enhanced by use the neck-bridging stent. However, it remains unclear what factors contribute to decreased recanalization. purpose this study was demonstrate contribution straightening effect parent artery stent-assisted coiling for aneurysms. METHODS Of 182 treated since introduction neurovascular stent, 82 consecutive unruptured with a diameter greater than 7 mm were selected. There 52 stent (Group S) and 30 without NS). Occlusion...
Abstract Middle cerebral artery steno-occlusive disease (MCAD) has been recognized as a different clinical entity from moyamoya (MMD). Although MCAD can progress to MMD, the extent which patients actually and risk factors for this progression have not fully elucidated. We retrospectively reviewed with who underwent RNF213 genotyping. Demographic features, p.R4810K mutation, medical history, longitudinal changes in angiography were analyzed. Sixty 81 affected hemispheres enrolled. During...
In order to make clear crystallization process of silicates in circumstellar environments oxygen-rich young stars, we have performed laboratory experiments on a silicate material by use synthetic sample with the chondritic composition for first time. The aim this work is analyze quantitatively using amorphous composition. starting was synthesized sol-gel method. heated at 660°-1200°C 0.5-12 hr investigate temperature and time dependence crystallization. run products were analyzed infrared...