نتایج جستجو برای: مدل hwes evt
تعداد نتایج: 120578 فیلتر نتایج به سال:
We compare in a backtesting study the performance of univariate models for Value-at-Risk (VaR) and expected shortfall based on stable laws and on extreme value theory (EVT). Analyzing these different approaches, we are able to test if the sum–stability assumption or the max–stability assumption, that respectively imply α–stable laws and Generalized Extreme Value (GEV) distributions, is more sui...
Five recently published randomized controlled trials (RCTs) and respective meta-analyses provide strong evidence that endovascular thrombectomy (EVT) combined with best medical treatment, including intravenous (IV) tissue plasminogen activator (tPA) (IV thrombolysis, IVT) for eligible patients, improves the outcomes of appropriately selected patients with acute ischemic stroke in the setting of...
OBJECTIVE Intracranial ruptured vertebral artery dissecting aneurysms (VADAns) are associated with high morbidity and mortality when left untreated due to the high likelihood of rebleeding. The present study aimed to establish an endovascular therapeutic strategy that focuses specifically on the angioarchitecture of ruptured VADAns. METHODS Twenty-three patients with ruptured VADAn received e...
BACKGROUND Endovascular therapy (EVT) with stent retrievers in addition to i.v. thrombolysis (IVT) has proven effective in acute stroke patients with middle cerebral artery (MCA, M1 segment) and distal internal carotid artery (ICA) occlusion. Limited data exist concerning acute cervical ICA occlusion, either alone or in combination with intracranial ICA occlusion (tandem occlusion). Therefore w...
De Haan and Pereira [1] provided models for spatial extremes in the case of stationarity, which depend on just one parameter β > 0 measuring tail dependence, and they proposed different estimators for this parameter. This framework was supplemented in [2] by establishing local asymptotic normality (LAN) of a corresponding point process of exceedances above a high multivariate threshold, yieldin...
OBJECTIVES/HYPOTHESIS To assess the comparative effectiveness of botulinum toxin and propranolol in patients with essential vocal tremor (EVT). STUDY DESIGN Individual prospective cohort study. METHODS Study patients were recruited at the Emory Voice Center from patients seeking treatment for EVT. Exclusion criteria included current β-blocker treatment, spasmodic dysphonia, or other disease...
Extreme Value Theory (EVT) is a useful tool to describe the statistical properties of extreme events. Its underlying assumptions include some form of temporal stationarity in the data. Previous studies have been able to treat long-term trends in datasets, to obtain the time dependence of EVT parameters in a parametric form. Since there is also a dependence of surface temperature and precipitati...
Objective: Intracranial atherosclerosis disease (ICAD) is one of the most common causes acute ischemic stroke. In endovascular treatment (EVT) for large vessel occlusion stroke-related ICAD, reocclusion recanalized artery due to in situ thrombosis problematic. this study, safety and efficacy prasugrel administration avoid emergent EVT ICAD was investigated.
Background d ‐Dimer level is a marker of hypercoagulability, which associated with thrombus formation and resolution. We investigated the value ‐dimer levels in predicting outcomes acute ischemic stroke patients who underwent endovascular treatment (EVT). Methods analyzed data only EVT from SECRET (Selection Criteria Endovascular Thrombectomy Thrombolytic Therapy) registry. were routinely measu...
An 81-year-old female was referred for myocardial infarction with heart failure. She was successfully treated with percutaneous coronary intervention (PCI), and left ventriculogram revealed an apical thrombus 20 mm in diameter. Multiple simultaneous thromboemboli occurred in her right renal artery, supramesenteric artery (SMA), and right popliteal artery on the fifth day after PCI despite antic...
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