Results 111 to 120 of about 10,053 (225)

The Findings of Transcranial Doppler Ultrasonography in Patients with Ischemic Stroke

Caspian Journal of Neurological Sciences, 2015
Background: Stroke is a multifactorial disorder, the most common cause being arterial occlusion. Transcranial Doppler Ultrasonography (TCD) is a common non-invasive method available for assessment the arterial blood flow of the brain.
Mozaffar Hosseininezhad, Seyed-Ali Roudbary, Iraj Keshavarzi, Seyed-Mohammad-Masood Hojjati, Ehsan Kazemnezhad-Leili   +4 more
doaj  

The role of acid‐base balance in cerebrovascular and ventilatory responses to CO2 during 10 h normobaric hypoxia

The Journal of Physiology, EarlyView.
Abstract figure legend During 10 h exposures to normobaric hypoxia exposure there was a selective leftward shift in ventilatory response to hyperoxic hypercapnic rebreathing, but not the cerebrovascular response. The key findings are that the resetting of the central chemoreflex to lower PCO2${P_{{\mathrm{C}}{{\mathrm{O}}_2}}}$ during early hypoxic ...
Holly Barclay, Saptarshi Mukerji, Bengt Kayser, Jui‐Lin Fan   +3 more
wiley   +1 more source

Transcranial Doppler Ultrasonography of the Basilar Artery in Cerebral Small Vessel Disease

Journal of Education, Health and Sport
This study evaluates the diagnostic value of transcranial Doppler ultrasonography (TCD) of the basilar artery in patients with cerebral small vessel disease (CSVD).
M. Vikarenko
doaj   +1 more source

Arterial–venous differences of brain‐derived neurotrophic factor isoforms across the brain and muscle after exercise at different intensities

The Journal of Physiology, EarlyView.
Abstract figure legend Exercise‐induced increases in forearm venous plasma and serum brain‐derived neurotrophic factor (BDNF) are often assumed to be indicative of release from the brain. Sixteen healthy and physically fit adults (20–40 years old) were recruited to investigate whether exercise‐induced changes in forearm venous mature BDNF (mBDNF) and ...
Olga Tarassova, Yiwen Jiang, Helena Wallin, Mats Jensen‐Urstad, Nikola Drca, Julia Röja, Marjan Pontén, Abram Katz, Jonna Nilsson, Maria M. Ekblom, Marcus Moberg   +10 more
wiley   +1 more source

Transcranial Doppler Ultrasonography-Related Research in the Caribbean Region. [PDF]

Cureus, 2023
Mandalaneni K, Venkatapathappa P, Koshy S, Walcott-Bedeau G, Singh V.   +4 more
europepmc   +1 more source

Ventilatory and cerebrovascular responses to exercise in lowlander children acclimatizing to high‐altitude

The Journal of Physiology, EarlyView.
Abstract figure legend To investigate age‐related differences in ventilatory and cerebrovascular responses to exercise at high‐altitude, adults (n = 10, 23–44 years) and children (n = 8, 7–14 years) completed progressive cycling exercise tests at sea‐level and following 6 days of acclimatization at 3800 m.
J. L. Koep, M. G. Rieger, K. J. Smith, G. R. DuManoir, C. M. Tallon, D. R. Perkins, S. Piombo, M. Stembridge, D. M. Cooper, S. Radom‐Aizik, P. N. Ainslie, A. M. McManus   +11 more
wiley   +1 more source

Cerebrovascular ultrasonography: Technique and common pitfalls

Annals of Indian Academy of Neurology, 2013
Although the clinical features in some patients with cerebrovascular ischemia may be ill defined, majority of the patients present with focal neurological deficits caused by an arterial occlusion, and the clinical presentations are usually referable to ...
Lokesh Bathala, Man Mohan Mehndiratta, Vijay K Sharma   +2 more
doaj   +1 more source

The Relationship between Transcranial Doppler Ultrasonography and Visual Field Test Results in Glaucoma and Glaucoma Suspect Patients. [PDF]

Korean J Ophthalmol, 2023
Han HJ, Kim JM.
europepmc   +1 more source

Sleep Alters the Velocity of Physiological Brain Pulsations in Humans

Advanced Science, Volume 13, Issue 19, 2 April 2026.
Sleep alters I/CSF oscillatory flow, driven by increased respiratory (29%) and vasomotor pulsation (21%) velocities, while cardiovascular pulsations decreased by (22%). Velocity is quantified using optical flow analysis of MREG data. Spectral power increases alongside these pulsations (spatial correlation, r = 0.35 and r = 0.39, respectively ...
Ahmed Elabasy, Heta Helakari, Tommi Väyrynen, Zalán Rajna, Niko Huotari, Lauri Raitamaa, Ville Isokoski, Matti Järvelä, Mika Kaakinen, Johanna Piispala, Mika Kallio, Vesa Korhonen, Tapio Seppänen, Vesa Kiviniemi   +13 more
wiley   +1 more source

Assessment of cerebrovascular reserve impairment using the breath-holding index in patients with leukoaraiosis

Neural Regeneration Research, 2019
Many studies have demonstrated that leukoaraiosis is associated with impaired cerebrovascular reserve function. However, the definitive hemodynamic changes that occur in leukoaraiosis are not clear, and there are many controversies.
Ying Bian, Jin-Chun Wang, Feng Sun, Zi-Yi Sun, Yu-Jiao Lin, Yang Liu, Bin Zhao, Li Liu, Xiao-Guang Luo   +8 more
doaj   +1 more source