Results 11 to 20 of about 195,910 (216)

Hyperpolarized ¹²⁹Xe Time-of-Flight MR Imaging of Perfusion and Brain Function

Diagnostics, 2020
Perfusion measurements can provide vital information about the homeostasis of an organ and can therefore be used as biomarkers to diagnose a variety of cardiovascular, renal, and neurological diseases.
Yurii Shepelytskyi, Francis T. Hane, Vira Grynko, Tao Li, Ayman Hassan, Mitchell S. Albert   +5 more
doaj   +1 more source

Acute physical and mental stress resulted in an increase in fatty acids, norepinephrine, and hemodynamic changes in normal individuals: A possible pathophysiological mechanism for hypertension—Pilot study

The Journal of Clinical Hypertension, 2021
Hypertension is often associated with metabolic changes. The sustained increase in sympathetic activity is related to increased blood pressure and metabolic changes.
Josiane Motta e Motta, Ludmila Neves Souza, Bianca Bassetto Vieira, Humberto Delle, Fernanda Marciano Consolim‐Colombo, Brent M. Egan, Heno Ferreira Lopes   +6 more
doaj   +1 more source

Effect of one minimum alveolar concentration sevoflurane with and without fentanyl on hemodynamic response to laryngoscopy and tracheal intubation

Journal of Anaesthesiology Clinical Pharmacology, 2011
Background : Drug combinations can be used for optimum obtundation of the hemodynamic response to tracheal intubation. The objective of this trial was to compare the hemodynamic response to laryngoscopy and tracheal intubation after administration of 2 ...
Anwar Hoda, Fauzia A Khan
doaj   +1 more source

Investigation of the Pattern of the Hemodynamic Response as Measured by Functional Near-Infrared Spectroscopy (fNIRS) Studies in Newborns, Less Than a Month Old: A Systematic Review

Frontiers in Human Neuroscience, 2018
It has been 20 years since functional near-infrared spectroscopy (fNIRS) was first used to investigate the evoked hemodynamic response to a stimulus in newborns.
Isabel de Roever, Gemma Bale, Subhabrata Mitra, Judith Meek, Nicola J. Robertson, Ilias Tachtsidis   +5 more
doaj   +1 more source

Comparing the effect of dexmedetomidine with magnesium sulfate on hemodynamic changes in patients undergoing laparoscopic cholecystectomy [PDF]

مجله علوم پزشکی فیض (پیوسته), 2023
Background: Evolution of laparoscopic surgery has been enormous help to both patient and surgeon, although incidence of pneumoperitoneum as consequence of laparoscopic surgery would cause hemodynamic instability.
Mehdi Rajabi, Mehrdad Mahdian, Hossin Akbari, Emad Khan Ahmad   +3 more
doaj   +2 more sources

Comparison of hemodynamic responses between normotensive and untreated hypertensive men under simulated long working hours

Scandinavian Journal of Work, Environment & Health, 2018
OBJECTIVES: The present study examined hemodynamic responses of normotensive and untreated hypertensive participants under simulated long working hours (LWH) – 13 hours – in an experimental laboratory study.
Hiroki Ikeda, Xiaoqin Liu, Fuyuki Oyama, Keiko Wakisaka, Masaya Takahashi   +4 more
doaj   +1 more source

Task-Specific Stimulation Duration for fNIRS Brain-Computer Interface

IEEE Access, 2020
In this paper, the most effective stimulation durations in the visual, somatosensory, and motor cortices are investigated. To evoke hemodynamic responses (HRs) for the purpose of brain-computer interface (BCI) with functional near-infrared spectroscopy ...
M. N. Afzal Khan, M. Raheel Bhutta, Keum-Shik Hong   +2 more
doaj   +1 more source

Functional MRI of Sensorimotor Cortex in Preterm Infants

Pediatric Neurology Briefs, 2009
Functional MRI (fMRI) findings in a group of 5 pre-term infants were correlated with a unilateral passive forearm extension/flexion to relate the functional data to structural and behavioral data, in studies at the University of Bonn, Germany; and ...
J Gordon Millichap
doaj   +1 more source

The Supplementary Motor Area Responsible for Word Retrieval Decline After Acute Thalamic Stroke Revealed by Coupled SPECT and Near-Infrared Spectroscopy

Brain Sciences, 2020
Damage to the thalamus may affect cognition and language, but the underlying mechanism remains unknown. In particular, it remains a riddle why thalamic aphasia occasionally occurs and then mostly recovers to some degree.
Shigeru Obayashi
doaj   +1 more source

Effect of dexmedetomidine infusion on hemodynamic responses in microsurgery of larynx

Journal of Anaesthesiology Clinical Pharmacology, 2018
Background and Aims: Microlaryngeal surgery is a frequently performed ear, nose, and throat procedure used to diagnose and treat laryngeal disorders.
Shakuntala Basantwani, Mayuresh Patil, Balasaheb Govardhane, Jyoti Magar, Bharati Tendolkar   +4 more
doaj   +1 more source