Results 71 to 80 of about 23,457 (242)

Transcranial Doppler in cerebrovascular disease.

, 1986
Doppler analysis of flow in intracranial arteries is now possible using a 2 MHz probe allowing sufficient penetration of bone to obtain signals noninvasively.
L R Wechsler, J P Kistler, A H Ropper
core   +1 more source

Analyzing post‐endovascular treatment stroke prognosis with transcranial Doppler and quantitative electroencephalography

Annals of Clinical and Translational Neurology
Objective Despite successful recanalization following acute ischemic stroke, patients may have a poor prognosis. We investigated whether transcranial Doppler combined with quantitative electroencephalography can identify patients with a poor prognosis at
Yajie Qi, Yingqi Xing, Qingduo Wang, Yanting Cao, Hongxiu Chen, Ying Chen   +5 more
doaj   +1 more source

Cerebrovascular flow‐mediated dilation in humans: Methodological challenges, physiological interpretation and future integrations

Experimental Physiology, EarlyView.
Abstract Arterial shear‐mediated vasodilation is a well‐established measure of endothelial function and serves as a critical biomarker for cardiovascular disease risk. Endothelial function can be measured using a variety of experimental methodologies; however, the most widely adopted technique is ultrasound‐based flow‐mediated dilation (FMD), in which ...
Yi Zhen Bao, Tabitha V. Craig, Jenna C. McCrone, Kurt J. Smith, Michael M. Tymko   +4 more
wiley   +1 more source

Konsep Dasar Transcranial Doppler (TCD) untuk Neurocritical Care

Jurnal Neuroanestesi Indonesia, 2017
Transcranial Doppler merupakan salah satu aplikasi dari penggunaan ultrasonografi (USG) sehingga bersifat noninvasif dan mobile. Untuk dapat menggunakan TCD dengan baik maka diperlukan pemahaman mengenai doppler effect yang merupakan dasar perhitungan ...
Ida Bagus Krisna J. Sutawan, Siti Chasnak Saleh, Tatang Bisri   +2 more
doaj   +1 more source

Whole‐body hot water immersion effect on cerebral haemodynamics and subsequent cerebrovascular reactivity to carbon dioxide

Experimental Physiology, EarlyView.
Abstract To test the hypothesis that hot water immersion (HWI) improves cerebrovascular function via shear‐mediated mechanisms, this study determined cerebrovascular reactivity to carbon dioxide (CVRCO2${\mathrm{CV}}{{\mathrm{R}}_{{\mathrm{C}}{{\mathrm{O}}_2}}}$) before and after 60 min of 39°C HWI and a 21°C air control (CON) in 15 healthy ...
Samuel F. Leaney, Ester Tommasini, Guto W. Hughes, Alison M. Shepherd, Nyah D. Kingdon, Justin S. Lawley, Geoff B. Coombs, Jonathan P. Moore, Samuel J. Oliver   +8 more
wiley   +1 more source

Transcranial Doppler in acute ischemic stroke and stroke-risk diseases

, 2018
This thesis covers research on the use of transcranial Doppler in ischemic stroke and stroke risk diseases, including TCD accuracy for detecting stenosis, the TIBI grade, its prognostic role and detecting of microemboli and its significance.általános ...
Finnsdóttir, Herdís
core  

A comparison of normobaric and hypobaric hypoxia effects on cerebrovascular response pre and post maximal exercise

Experimental Physiology, EarlyView.
Abstract A lack of consensus remains on whether normobaric hypoxia (NH) and hypobaric hypoxia (HH) may differentially impact physiological factors affecting cerebrovascular regulation, particularly with an additional strenuous exercise component. We sought to compare the acute effects of NH and HH on global cerebral blood flow (gCBF) at an altitude ...
Rachel Turner, Giovanni Vinetti, Giacomo Strapazzon, Hannes Gatterer   +3 more
wiley   +1 more source

Contrast-enhanced transcranial Doppler ultrasound for diagnosis of patent foramen ovale

, 2006
The suspected cause of clinical manifestations of patent foramen ovale (PFO) is a transient or a permanent right-to-left shunt (RLS). Contrast-enhanced transcranial Doppler ultrasound (c-TCD) is a reliable alternative to transesophageal echocardiography (
Nedeltchev, Krassen, Heinrich P. Mattle, Mattle, Heinrich P, Krassen Nedeltchev   +3 more
core   +1 more source

Factors influencing heart rate variability in nurses following night shifts: a prospective observational clinical study

BMC Nursing
Background Heart rate variability (HRV) has been established as a key indicator of autonomic nervous system activity, reflecting both sympathetic and parasympathetic modulation.
Taihe Zhan, Ziying Zhang, Zhimin Shi, Hongyan Xie, Daogang Zha, Xiumei Wei   +5 more
doaj   +1 more source

RETROSPECTIVE EVALUATION OF THE FETUS AND NEWBORN ON THE BASIS OF INDICATORS OF FETAL HEMODYNAMICS AND TRANSCRANIAL CEREBRAL OXIMETRY

Медицинский вестник Юга России, 2013
Purpose: identify the correlation between antenatal evaluation of fetus and newborn according to cerebral fetal hemodynamic and transcranial cerebral oximetryMaterials and methods.
V. A. Kulakova, A. V. Orlov, M. G. Nekrasova   +2 more
doaj   +1 more source