Results 31 to 40 of about 324,321 (351)
Eye and Vision, 2019 Background Non-arteritic anterior ischemic optic neuropathy (NAION) is the most common cause of acute optic neuropathy in patients over 50 years of age, and many affected individuals are left with permanent visual deficits. Despite the frequency of NAION
Amanda D. Henderson +2 more
doaj +1 more source
Revealing Intraosseous Blood Flow in the Human Tibia With Ultrasound
JBMR Plus, 2021 Intraosseous blood circulation is thought to have a critical role in bone growth and remodeling, fracture healing, and bone disorders. However, it is rarely considered in clinical practice because of the absence of a suitable noninvasive in vivo ...
Sébastien Salles +3 more
doaj +1 more source
Normal fetal pulmonary venous blood flow velocity [PDF]
Ultrasound in Obstetrics & Gynecology, 1995 AbstractOur objectives were to describe the normal pulmonary venous blood flow velocity waveform and to establish reference ranges for the second half of pregnancy in healthy human fetuses. A total of 123 women with uncomplicated pregnancies of between 20 and 40 weeks were examined, using a combined color‐coded Doppler and two‐dimensional real‐time ...
J A, Laudy +3 more
openaire +2 more sources
Computational fluid dynamicaccuracy in mimicking changes in blood hemodynamics in patients with acute type IIIb aortic dissection treated with TEVAR [PDF]
, 2018 Background: We aimed to verify the accuracy of the Computational Fluid Dynamics (CFD) algorithm for blood flow reconstruction for type IIIb aortic dissection (TBAD) before and after thoracic endovascular aortic repair (TEVAR).
Domenig, Christoph +5 more
core +1 more source
International Journal of Cardiology: Heart & Vasculature, 2014 Objectives: The main objective of this study was to assess the blood flow rate and velocity in coronary artery stenosis using intracoronary frequency domain optical coherence tomography (FD-OCT). A correlation between fractional flow reserve (FFR) and FD-
Haroon Zafar +2 more
doaj +1 more source
Confocal micro-PIV measurements of blood flow in microchannels [PDF]
, 2006 The detail measurements of velocity profiles of blood flow in microchannels are fundamental for a better understanding on the biomechanics of the microcirculation.
Lima, R. +3 more
core +1 more source
The Effects of Involuntary Respiratory Contractions on Cerebral Blood Flow during Maximal Apnoea in Trained Divers. [PDF]
PLoS ONE, 2013 The effects of involuntary respiratory contractions on the cerebral blood flow response to maximal apnoea is presently unclear. We hypothesised that while respiratory contractions may augment left ventricular stroke volume, cardiac output and ultimately ...
Troy J Cross +6 more
doaj +1 more source
Aerobic exercise training increases cerebral blood flow in postmenopausal women
Artery Research, 2012 Background: Age-related decrease in cerebral blood flow is a risk factor for cognitive decline. Aerobic exercise training improves vascular and cognitive functions.
Nobuhiko Akazawa +5 more
doaj +1 more source
Abnormal Cerebrovascular Reactivity in Patients with Parkinson’s Disease
Parkinson's Disease, 2015 Background. Orthostatic hypotension (OH) is an important nonmotor manifestation of Parkinson’s disease (PD). Changes in cerebrovascular reactivity may contribute to this manifestation and can be monitored using transcranial Doppler. Objective.
Carlos Henrique Ferreira Camargo +8 more
doaj +1 more source
Evaluation of arterial digital blood flow using Doppler ultrasonography in healthy dairy cows
BMC Veterinary Research, 2017 Background Local circulatory disturbances have been implicated in the development of foot disorders in cattle. The goals of this study were to evaluate the suitability of the interdigital artery in the pastern region in both hind limbs using pulsed-wave (
H. Müller +5 more
doaj +1 more source