Results 31 to 40 of about 4,859 (196)

Transcranial duplex doppler ultrasonography in dogs with hydrocephalus Ultrassonografia duplex Doppler transcraniana em cães com hidrocefalia

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2010
Transcranial duplex Doppler ultrasound was performed in 32 conscious dogs presenting ventriculomegaly detected in B-mode, obtaining measures of lateral ventricles and resistance parameters of main cerebral arteries before and after 30 days of clinical ...
C.F. Carvalho, M.C. Chammas, J.P. Andrade Neto, C.D. Jimenez, S.A. Diniz, G.G. Cerri   +5 more
doaj   +1 more source

Development history of cerebral autoregulation

Chinese 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, XING Hai ⁃ ying, JIN Hai ⁃ qiang, SUN Yun ⁃ chuang, PENG Qing, SUN Wei, WANG Zhao ⁃ xia, HUANG Yi⁃ning   +7 more
doaj   +1 more source

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

Experimental 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, Yojiro Ogawa, Ken‐ichi Iwasaki   +2 more
wiley   +1 more source

The effect of combined treatment with transcranial direct current stimulation on cerebral blood flow in patients with cerebral palsy

Zaporožskij Medicinskij Žurnal, 2017
There is a close link between the activity of the brain and cerebral blood supply. Transcranial direct current stimulation (tDCS) modulates the activity of the cerebral cortex and thus affects the cerebral blood flow.
K. V. Yatsenko, T. V. Taranenko, F. V. Yurchenko, G. G. Skibo   +3 more
doaj   +1 more source

Regional changes in cerebral blood flow between the upright and supine posture and over 3 days of bed rest

Experimental Physiology, EarlyView.
Abstract A reduction in cerebral blood flow (CBF) has been observed during spaceflight and bed rest. We aimed to examine the magnitude and regional heterogeneity of the decrease in CBF during bed rest compared to posture changes on Earth. Seventeen participants (age, 29 ± 9 years, 7 females) were studied in the upright and supine posture and over 3 ...
Carmen Possnig, Kyohei Marume, Gautam Babu, Sylvan L. J. E. Janssen, Christopher M. Hearon Jr, Katrin A. Dias, Satyam Sarma, Justin S. Lawley, Benjamin D. Levine   +8 more
wiley   +1 more source

Transcranial Doppler ultrasonography to evaluate cerebral hemodynamic changes in neurocysticercosis

Arquivos de Neuro-Psiquiatria
Background Arteritis is a complication of neurocysticercosis (NCC), which is not well known and could trigger strokes. The transcranial Doppler ultrasound (TCD) is a noninvasive method for detecting, staging, and monitoring cerebrovascular ...
Sofia S. Sanchez-Boluarte, Danny M. Barrientos-Iman, Jorge Ramirez-Quiñones, Javier Bustos, Rosa Ecos, Isidro Gonzales, Herbert Saavedra, Hector H. Garcia   +7 more
doaj   +1 more source

Transcranial sonography in Parkinson’s disease [PDF]

Einstein (São Paulo), 2012
Transcranial sonography has become a useful tool in the differentialdiagnosis of parkinsonian syndromes. This is a non-invasive, low costprocedure. The main finding on transcranial sonography in patientswith idiopathic Parkinson’s disease is an increased
Edson Bor-Seng-Shu, José Luiz Pedroso, Daniel Ciampi de Andrade, Orlando Graziani Povoas Barsottini, Luiz Augusto Franco de Andrade, Egberto Reis Barbosa, Manoel Jacobsen Teixeira   +6 more
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Migraine with aura and TCD bubble-test: The significance of positive result [PDF]

Vojnosanitetski Pregled, 2015
Background/Aim. The association between the right-to left shunt (RLS) and migraine with aura (MA) has been proven so far. The aim of this study was to determine if the presence of RLS detected as a result of transcranial doppler (TCD) bubble ...
Podgora Ana Lj., Zidverc-Trajković Jasna J., Jovanović Zagorka B., Radojičić Aleksandra P., Pavlović Aleksandra M., Mijajlović Milija D., Švabić-Međedović Tamara, Čovičković-Šternić Nadežda M.   +7 more
doaj   +1 more source

Cerebrovascular pulsatility following long duration spaceflight is associated with changes in pulse pressure and carotid artery stiffness

Experimental Physiology, EarlyView.
Abstract Central artery stiffening increases the haemodynamic pulsations transmitted downstream towards target organs, including the brain. While recent evidence suggests that long duration spaceflight is associated with reduced common carotid artery (CCA) distensibility, cerebrovascular pulsatility has not been extensively characterized in astronauts.
Roxanne Fournier, Danielle K. Greaves, J. Kevin Shoemaker, Philippe Arbeille, Richard L. Hughson, Andrew D. Robertson   +5 more
wiley   +1 more source

Ten⁃year advance of transcranial Doppler ultrasonography

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