Results 51 to 60 of about 11,817 (216)

The potential role of sleep quality in the relationship between glymphatic function and migraine frequency: Insights from a cross‐sectional study

open access: yesHeadache: The Journal of Head and Face Pain, EarlyView.
Abstract Objective This study aimed to explore the association between glymphatic function, as assessed by the diffusion tensor imaging along perivascular space (DTI‐ALPS) index, and headache frequency in individuals with migraine. Additionally, it evaluated whether sleep quality modulates this relationship.
Raffaele Ornello   +9 more
wiley   +1 more source

Development history of cerebral autoregulation

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery, 2021
Cerebral autoregulation (CA) refers to the ability to maintain cerebral blood flow (CBF) relatively constant under the condition of systemic arterial blood pressure (ABP) fluctuation.
LI Fan   +7 more
doaj   +1 more source

Transcranial Doppler ultrasound validation of BOLD-fMRI cerebral blood flow relationship. [PDF]

open access: yesMagn Reson Med
Abstract Purpose A precise understanding of the interplay between cerebral blood flow (CBF) and blood oxygen level‐dependent (BOLD) fMRI signals is essential for advancing cerebrovascular research. Although calibrated BOLD approaches often rely on arterial spin labelling (ASL) to estimate CBF, alternative validation using transcranial Doppler ...
Hayes G, Pinto J, Sparks S, Bulte DP.
europepmc   +2 more sources

Confined spaces in space: Cerebral implications of chronic elevations of inspired carbon dioxide and implications for long‐duration space travel

open access: yesExperimental Physiology, EarlyView.
Abstract Cerebrovascular regulation is critically dependent upon the arterial partial pressure of carbon dioxide (PaCO2${P_{{\mathrm{aC}}{{\mathrm{O}}_{\mathrm{2}}}}}$), owing to its effect on cerebral blood flow, tissue PCO2${P_{{\mathrm{C}}{{\mathrm{O}}_{\mathrm{2}}}}}$, tissue proton concentration, cerebral metabolism and cognitive and neuronal ...
Jay M. J. R. Carr   +2 more
wiley   +1 more source

Cerebral blood flow autoregulation is impaired in schizophrenia [PDF]

open access: yes, 2017
Patients with schizophrenia have a higher risk of cardiovascular diseases and higher mortality from them than does the general population; however, the underlying mechanism remains unclear.
al, et, Ku, Hsiao-Lun, Lane, Timothy
core  

Feasibility of superimposed supine cycling and lower body negative pressure as an effective means of prolonging exercise tolerance in individuals experiencing persisting post‐concussive symptoms: Preliminary results

open access: yesExperimental Physiology, EarlyView.
Abstract To examine the feasibility, utility and safety of superimposed lower body negative pressure (LBNP) and tilt during supine cycling in individuals suffering from persisting post‐concussive symptoms (PPCS). Eleven individuals aged 17–31 (6 females/5 males) participated in two randomized separate visits, 1 week apart.
Raelyn Javra   +3 more
wiley   +1 more source

Ten⁃year advance of transcranial Doppler ultrasonography

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery, 2010
DOI:10.3969/j.issn.1672-6731.2010.01 ...
Shan GAO
doaj  

Predictive value of variation in blood flow of the middle cerebral artery measured using transcranial Doppler sonography in patients with acute brain stroke [PDF]

open access: yes, 2007
چکیده: زمینه و هدف: سونوگرافی داپلرترانس‌کرانیال (TCD) روشی غیر تهاجمی، ارزان، سریع و مفید در ارزیابی و تعیین محـل ایجاد پـاتولـوژی در بیماران مبتلا بـه سکتـه مغـزی حـاد بخصوص در محدوده شریان مغزی میانی (MCA) است.
Hoseinzadeh, Akram., Mazaheri, Shahir.
core  

Radiological Correlates of Raised Intracranial Pressure in Children: A Review. [PDF]

open access: yes, 2018
Radiological assessment of the head is a routine part of the management of traumatic brain injury. This assessment can help to determine the requirement for invasive intracranial pressure (ICP) monitoring. The radiological correlates of elevated ICP have
Agrawal, Shruti   +10 more
core   +2 more sources

Effects of the angle of head‐down tilt on dynamic cerebral autoregulation during combined exposure to cephalad fluid shift and mild hypercapnia

open access: yesExperimental Physiology, EarlyView.
Abstract Astronauts experience combined exposure to a cephalad fluid shift and mild hypercapnia during space missions, potentially contributing to health problems. Such combined exposure may weaken dynamic cerebral autoregulation. The magnitude of cephalad fluid shift varies between individuals, and dynamic cerebral autoregulation may be affected more ...
Tomokazu Kato   +2 more
wiley   +1 more source

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