Results 91 to 100 of about 348,367 (159)
Türk Yoğun Bakim Derneği Dergisi, 2011 Objective: The aim of this study was to compare the effects of etomidate and ketamine on hemodynamic and metabolic responses to intubation in ICU patients.
Özlem Çınar +6 more
doaj +1 more source
Semiparametric Bayesian models for human brain mapping [PDF]
, 2002 Functional magnetic resonance imaging (fMRI) has led to enormous progress in human brain mapping. Adequate analysis of the massive spatiotemporal data sets generated by this imaging technique, combining parametric and non-parametric components, imposes ...
C Gössl +4 more
core +2 more sources
Gaussian Processes for HRF estimation for BOLD fMRI [PDF]
arXiv, 2017 We present a non-parametric joint estimation method for fMRI task activation values and the hemodynamic response function (HRF). The HRF is modeled as a Gaussian process, making continuous evaluation possible for jittered paradigms and providing a variance estimate at each point.
arxiv
Local temperature-sensitive mechanisms are important mediators of limb tissue hyperemia in the heat-stressed human at rest and during small muscle mass exercise. [PDF]
, 2015 Limb tissue and systemic blood flow increases with heat stress, but the underlying mechanisms remain poorly understood. Here, we tested the hypothesis that heat stress-induced increases in limb tissue perfusion are primarily mediated by local temperature-
Ali, L +7 more
core +1 more source
Egyptian Journal of Anaesthesia, 2014 Background and aim of study: Electroconvulsive therapy (ECT) is one of the safest methods used for the treatment of patients with mental illness today. It is associated with surge in heart rate and blood pressure for a brief period of time.
Muhammad Umar Zahoor +2 more
doaj +1 more source
Estimating effective connectivity in linear brain network models
, 2017 Contemporary neuroscience has embraced network science to study the complex and self-organized structure of the human brain; one of the main outstanding issues is that of inferring from measure data, chiefly functional Magnetic Resonance Imaging (fMRI ...
Bertoldo, Alessandra +3 more
core +1 more source
Inter-trial variability in sensory-evoked cortical hemodynamic responses: the role of the magnitude of pre-stimulus fluctuations [PDF]
, 2012 Brain imaging techniques utilize hemodynamic changes that accompany brain activation. However, stimulus-evoked hemodynamic responses display considerable inter-trial variability and the sources of this variability are poorly understood.
Berwick, J., Jones, M., Saka, M.
core +2 more sources
Effect of Local Ropivacaine on Hemodynamic Responses in Craniotomy Patients
Journal of Investigative Surgery, 2018 Background: Increased intracranial pressure (ICP) with hemodynamic is of major concern to anesthesiologists and surgeons in craniotomy surgery. Thus, the management of hemodynamic stability is essential in neuro-anesthesia.
Siavash Beiranvand,, Sepideh Vahabi
doaj +1 more source
Hemodynamic and inotropic effects of endothelin-1 in vivo [PDF]
, 1994 Endothelin-1 (ET-1) is known to have strong vasoactive properties. Contradictory results have been reported with regard to its inotropic effects. This study examined the dose-dependent (500, 1000, 2500, 5000 and 10,000 ng ET-1/kg vs.
Beyer, M. E. +3 more
core
Journal of Medical and Scientific ResearchBackground: The hemodynamic response to the stress of laryngoscopy and endotracheal intubation does not present a problem for most patients, except in cardiovascular or cerebral disease.
Nebu CA +4 more
doaj +1 more source