Results 21 to 30 of about 5,939,519 (302)
Cerebral blood flow modeling in primate cortex [PDF]
We report new results on blood flow modeling over large volumes of cortical gray matter of primate brain. We propose a network method for computing the blood flow, which handles realistic boundary conditions, complex vessel shapes, and complex nonlinear ...
Plouraboué, Franck +5 more
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Objectives Patients with chronic obstructive pulmonary disease (COPD) are at increased risk of cerebrovascular disease, which might be associated with decreases in cerebral blood flow. Since studies examining cerebral blood flow in COPD remain scarce and
Lies Lahousse +7 more
doaj +1 more source
Modeling of intracranial vessels and Simulation of cerebral blood flow [PDF]
The stable regulation of cerebral blood flow plays an important role in the normal operation of brain function. The disturbance of cerebral blood flow automatic regulation will lead to brain injury and lead to cerebrovascular disease. Therefore, it is of
Yan Yingying +4 more
doaj +1 more source
Objective: Orthostatic symptoms in myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) may be caused by an abnormal reduction in cerebral blood flow.
C. (Linda) M.C. van Campen +2 more
doaj +1 more source
Hyperventilation and Cerebral Blood Flow [PDF]
Hypocapnic-hyperventilation has a profound, but probably temporary, effect on CBF, producing approximately a 2% decline in CBF for each 1 torr decline in P co co2 . This effect appears to be mediated through changes in perivascular pH of the cerebral resistance vessels ...
M E, Raichle, F, Plum
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Dehydration affects cerebral blood flow but not its metabolic rate for oxygen during maximal exercise in trained humans [PDF]
This article has been made available through the Brunel Open Access Publishing Fund.Key points: Dehydration accrued during exercise in the heat challenges systemic and locomotor muscle blood flow, but its impact on cerebral blood flow (CBF) and ...
Stock, Christopher G +12 more
core +1 more source
The effect of absent blood flow on the zebrafish cerebral and trunk vasculature
The role of blood flow in vascular development is complex and context-dependent. In this study, we quantify the effect of the lack of blood flow on embryonic vascular development on two vascular beds, namely the cerebral and trunk vasculature in ...
Elisabeth Kugler +8 more
doaj +1 more source
Study of the relationship between regional cerebral saturation and pCO2 changes during mechanical ventilation to evaluate modifications in cerebral perfusion in a newborn piglet model [PDF]
Near-infrared spectroscopy (NIRS) could be a useful continuous, non-invasive technique for monitoring the effect of partial pressure of carbon dioxide (PaCO2) fluctuations in the cerebral circulation during ventilation.
F. Silvera +13 more
doaj +1 more source
Systemic and cerebral blood flow [PDF]
We read with interest the findings of Evans et al concerning the changes in middle cerebral artery (MCA) haemodynamics over the first two days after birth in preterm infants.1 Evans et al demonstrated a significant change in several Doppler velocity measures in the MCA, including systolic, diastolic, and mean velocity, pulsatility index and velocity ...
C M, Kissack +2 more
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Cerebral blood flow monitoring
Brain is a unique organ of the body that receives highest amount of cardiac output and totally depend on the blood supply for its survival and no reserve of blood flow making it vulnerable for ischaemia. Other important properties of cerebral circulation
Manikandan Sethuraman
doaj +1 more source

