نتایج جستجو برای: cerebral state index
تعداد نتایج: 1396076 فیلتر نتایج به سال:
Cerebral subcortical atrophy occurs in both Alzheimer’s disease (AD) and frontotemporal dementia (FTD) but its significance for clinical manifestations and differential diagnosis between these common types of dementia has not been extensively investigated. Objectives: To compare the severity of cerebral subcortical atrophy in FTD and AD and to analyze the correlations between cerebral subcortic...
BACKGROUND It is well established that aging and vascular processes interact to disrupt cerebral hemodynamics in older adults. However, the independent effects of cerebral perfusion on neurocognitive function among older adults remain poorly understood. We examined the associations among cerebral perfusion, cognitive function, and brain structure in older adults with varying degrees of vascular...
Aging, hypertension (HTN), and other cardiovascular risk factors contribute to structural and functional changes of the arterial wall. Objective To evaluate whether arterial stiffness (AS) is related to cerebral blood flow changes and its association with cognitive function in patients with hypertension. Methods 211 patients (69 normotensive and 142 hypertensive) were included. Patients wit...
Our aim in this study was to assess the relationship between the state of cerebral vessels and the risk of conversion from mild cognitive impairment (MCI) to Alzheimer's disease (AD). We included 117 MCI patients. They underwent an ultrasonographic assessment of common carotid arteries intima-media thickness (IMT) and carotid plaque index. Cerebrovascular reactivity to hypercapnia in the middle...
BACKGROUND AND PURPOSE Dynamic cerebral autoregulation is impaired in subjects who develop acute mountain sickness (AMS), a neurological disorder characterized by headache. The present study examined if the normoxic sea-level measurement of dynamic cerebral autoregulation would predict subsequent susceptibility to AMS during rapid ascent to terrestrial high altitude. METHODS A dynamic cerebra...
Background and Objective: Cerebral palsy is a non-progressive disorder of posture and motor status caused by various factors and can cause childhood disabilities and abnormalities like flat foot deformity. Kinesio Taping is a typical technique that helps relieve pain, relax muscles, and increase proprioception. The purpose of this study was to evaluate the effectiveness of Kinesio Taping on the...
OBJECTIVE The purpose of this study was to evaluate with Color Doppler the influence of type of delivery, sex, postnatal age and time post feeding on full term healthy newborns cerebral blood flow. METHOD 50 newborns were studied. The Doppler parameters, peak-systolic velocity, end-diastolic velocity, mean velocity, pulsatility index and resistance index, were measured in the anterior cerebra...
OBJECTIVE We sought to use the regional homogeneity (ReHo) approach as an index in the resting-state functional MRI to investigate the gender differences of spontaneous brain activity within cerebral cortex and resting-state networks (RSNs) in young adult healthy volunteers. METHODS One hundred and twelve healthy volunteers (56 males, 56 females) participated in the resting-state fMRI scan. T...
The classic dynamic autoregulatory index (ARI), proposed by Aaslid and Tiecks, is one of the most widely used methods to assess the efficiency of dynamic cerebral autoregulation. Although this index is often used in clinical research and is also included in some commercial equipment, it exhibits considerable intra-subject variability, and has the tendency to produce false positive results in cl...
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