Results 71 to 80 of about 28,700 (271)

Most Small Cerebral Cortical Veins Demonstrate Significant Flow Pulsatility: A Human Phase Contrast MRI Study at 7T

Frontiers in Neuroscience, 2020
Phase contrast MRI (pcMRI) has been used to investigate flow pulsatility in cerebral arteries, larger cerebral veins, and the cerebrospinal fluid (CSF). Such measurements of intracranial pulsatility and compliance are beginning to inform understanding of
Ian D. Driver, Maarika Traat, Maarika Traat, Fabrizio Fasano, Richard G. Wise, Richard G. Wise, Richard G. Wise   +6 more
doaj   +1 more source

Transcranial Color‐Coded Duplex Sonography in Large‐Vessel Vasculitis Compatible With Takayasu Arteritis Presenting Intracranial Involvement and Vertebrobasilar Dolichoectasia: A Case Report

Journal of Clinical Ultrasound, EarlyView.
This case illustrates sequential intracranial occlusions in large‐vessel vasculitis compatible with Takayasu arteritis preserving perfusion through robust collateral pathways. Transcranial color‐coded duplex sonography identified characteristic blunted flow patterns and focal turbulence, underscoring its value in detecting hemodynamic compromise beyond
Maria Júnia Lira e Silva, Jordana Gaudie Gurian, Isabella Mesquita Venâncio, Eva Carolina Rocha, Gisele Sampaio Silva   +4 more
wiley   +1 more source

Mapping Neurodegenerative Changes in Clinically Uncertain Parkinsonian Syndrome Patients Using Fast MR Spin TomogrAphy in Time‐Domain (MR‐STAT) Relaxometry at 3T

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background MR Spin TomogrAphy in Time‐domain (MR‐STAT) enables accelerated multiparametric relaxometry (T1/T2). Previous relaxometry studies predominantly compared Parkinson's disease patients with healthy controls (HC). The potential of relaxometry to distinguish neurodegenerative from non‐neurodegenerative parkinsonism in clinically ...
Martin B. Schilder, Elon D. Wallert, Stefano Mandija, Oscar van der Heide, Hongyan Liu, Miha Fuderer, Edwin Versteeg, Jan Booij, Rob M. A. de Bie, Martijn Beudel, Henk W. Berendse, Tom van Mierlo, Jeroen Blankevoort, Cornelis A. T. van den Berg, Elsmarieke van de Giessen, Alessandro Sbrizzi   +15 more
wiley   +1 more source

Clinical evaluation of blood flow in femoral head necrosis using color doppler ultrasound

Scientific Reports
This study aims to utilize Color Doppler Ultrasound to collect blood flow parameters of the medial circumflex femoral artery and explore the changes in blood flow in osteonecrosis of the femoral head, providing objective indicators for clinical ...
Tong-jie Yang, Yan Li, Peng-peng Wen, Zi-xuan Wu, Xin Ye, Cheng Zhang, Shi-yi Sun, Guang-yi Zhang, Yi-fei Sun, Cheng-kun Zhou, Ren Ye, Hai-jun He   +11 more
doaj   +1 more source

Cerebral hemodynamic characteristics of acute mountain sickness upon acute high-altitude exposure at 3,700 m in young Chinese men. [PDF]

, 2014
PURPOSE: We aimed at identifying the cerebral hemodynamic characteristics of acute mountain sickness (AMS). METHODS: Transcranial Doppler (TCD) sonography examinations were performed between 18 and 24 h after arrival at 3,700 m via plane from 500 m (n ...
Bian, Shi-Zhu, Chen, Jian-Fei, Huang, Lan, Jin, Jun, Li, Qian-Ning, Qin, Jun, Tang, Cai-Fa, Yu, Shi-Yong, Zhang, Ji-Hang   +8 more
core   +2 more sources

Pre-eclampsia toxaemia [PDF]

, 2013
A 33 year old primagravida rhesus positive woman was referred to the Emergency Department by her family doctor at 27 weeks gestation. At 25 weeks of gestation, she had been diagnosed with hypertension and was started on labetalol therapy.
Bugeja, Roberta, Galdes, Caroline
core  

Different locations but common associations in subcortical hypodensities of presumed vascular origin: cross-sectional study on clinical and neurosonologic correlates [PDF]

, 2014
BACKGROUND: Subcortical hypodensities of presumed vascular etiology (SHPVO) are a clinical, radiological and neuropathological syndrome with a still largely unexplained pathophysiology.
Ana Gouveia, Cristina Duque, Cristina Machado, César Nunes, Fernando Silva, Gustavo Cordeiro, Joana Ribeiro, João Madaleno, João Sargento-Freitas, Luís Cunha, Ricardo Felix-Morais   +10 more
core   +1 more source

Carotid Atherosclerosis is Associated with Middle Cerebral Artery Pulsatility Index [PDF]

Journal of Neuroimaging, 2019
ABSTRACTBACKGROUND AND PURPOSEPulsatility index (PI) in the middle cerebral artery (MCA) is considered a measure of peripheral vascular resistance. Several established cardiovascular risk factors are common for both MCA PI and carotid atherosclerosis. Accordingly, in the present study we hypothesized an association between ultrasound‐derived indices of
Thea Vigen, Håkon Ihle‐Hansen, Magnus N Lyngbakken, Trygve Berge, Bente Thommessen, Hege Ihle‐Hansen, Eivind B Orstad, Steve Enger, Helge Røsjø, Arnljot Tveit, Ole Morten Rønning   +10 more
openaire   +3 more sources

Considerations for Initiation and Maintenance of Foslevodopa/Foscarbidopa for Advanced Parkinson's Disease

Movement Disorders Clinical Practice, EarlyView.
Abstract Background As Parkinson's disease (PD) progresses, motor fluctuations become increasingly difficult to manage with oral medications. Foslevodopa/foscarbidopa (LDp/CDp), delivered as a continuous 24‐h/day subcutaneous infusion, offers continuous levodopa delivery and stable plasma levodopa levels that reduce motor fluctuations. LDp/CDp has been
K. Ray Chaudhuri, Bruno Bergmans, Eric Freire‐Alvarez, Lucie Hopes, Drew S. Kern, Robert S. Kirsner, Giulia Lazzeri, Pedro Mendes‐Bastos, Noriko Nishikawa, Per Odin, Karolina Poplawska‐Domaszewicz, Rajesh Pahwa, Yuval Ramot, Klaus Seppi, Tobias Warnecke, Robert Wiggins, Megha B. Shah, Pavnit Kukreja, Bjoern Fritz, Koray Onuk, Stuart H. Isaacson   +20 more
wiley   +1 more source

Role of second trimester uterine artery doppler in early prediction of preeclampsia and intrauterine growth restriction among high-risk Bahamian residents

SAGE Open Medicine
Background: Uterine artery doppler velocimetry has proven to be efficient in the prediction of preeclampsia and intrauterine growth restriction. We aimed to determine its value among high-risk Bahamian women and the most predictive parameter. Methods: We
Azaria Clare, Vrunda Sakharkar
doaj   +1 more source