Blood Flow, Hemodynamics
Hemodynamics, coronary blood flow, and myocardial metabolism in coronary shock; response to l norepinephrine and isoproterenol
... Hemodynamics and myocardial metabolism were evaluated in 18 patients in cardiogenic shock following acute myocardial infarction. The response to l-norepinephrine was studied in seven cases and the response to ...
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A CT Method to Measure Hemodynamics in Brain Tumors: Validation and Application of Cerebral Blood Flow Maps
... other blood flow measurement techniques such as PET (40) and SPECT (41) and is compa- rable to a single-level xenon CT CBF ...cerebral hemodynamics with an accept- able radiation ...
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A review of computational hemodynamics in middle cerebral aneurysms and rheological models for blood flow
... the hemodynamics in MCA [129, 130, ...unsteady flow using patient-specific models from 3D rotational angiography images, pulsatile flow following the Womersley solution and rigid ...of blood ...
41
Microcirculatory blood flow during cardiac arrest and cardiopulmonary resuscitation does not correlate with global hemodynamics: an experimental study
... The microcirculation measurements during the experi- ment were performed manually by a single investigator (PK) on the conjunctivae and sublingual mucosa of the experimental animal. Due to presumed dynamic changes of ...
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Hemodynamics in the leech: blood flow in two hearts switching between two constriction patterns
... started in the anterior heart segments with an average intersegmental delay of –2.7% between heart segments 3 and 13 (range, 0.3 to –3.8%) (Wenning et al., 2004a). Due to these short intersegmental delays of systole ...
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Model estimation of cerebral hemodynamics between blood flow and volume changes: a data-based modelling approach
... cerebral blood volume ...the blood oxygen level dependent (BOLD) signals are recorded, the understanding and accurate modelling of the hemodynamic relationship between CBF and CBV becomes increasingly ...
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Effects of 8-week swimming training on carotid arterial stiffness and hemodynamics in young overweight adults
... by flow velocity and whole blood viscosity and is inversely related to vessel diameter ...that blood viscosity was at the same value for all ...on blood flow and shear stress ...
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High-flow bypass and wrap-clipping for ruptured blood blister-like aneurysm of the internal carotid artery using intraoperative monitoring of cerebral hemodynamics
... balloon occlusion test, ischemic complications can occur secondary to hemodynamic hypoperfusion or occlusion of the perforating artery. In addition, delayed cerebral vasos- pasm may develop between 4 and 14 days after ...
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Blood Flow Modelling of Linear and Sequential Bypass Coronal Vessels of the Heart
... of blood flow are sharp object of attention of many scientists thanks to the extraordinary importance of them in theoretical, as well as in practical ...of hemodynamics reveals ample opportunities ...
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Effects of Flow Diverting Device Oversizing on Hemodynamics Alteration in Cerebral Aneurysms
... E ndovascular coiling has become the treatment of choice for most intracranial aneurysms. However, it has significant limitations in achieving durable occlusion of large and giant aneurysms because of their propensity ...
7
Cerebral hemodynamics and endothelial function in patients with Fabry disease
... cerebral hemodynamics (using transcranial Doppler to measure brain blood flow velocities and cerebral vasomotor re- activity), as well as the existence or not of vascular remodelling (measuring ...
7
Comparison between Total Intravenous Anesthesia Using Propofol and Inhalational Anesthesia Using Isoflurane on the Quality of Surgical Field in Spine Surgery
... total blood loss in the propofol group and isoflurane group was not very great, however isoflurane may provide better control of bleeding than propofol, by decreasing systemic vascular ...
8
Phenylephrine versus ephedrine on cerebral perfusion during carotid endarterectomy (PEPPER): study protocol for a randomized controlled trial
... increases blood pressure purely by vasoconstriction, whereas ephedrine (a combined α- and β-agonist) increases blood pressure by a combination of vasoconstriction and an increase in heart rate and a ...
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The effect of myoglobin concentration on aerobic dive limit in a Weddell seal
... in blood lactate over resting ...increased blood lactate resulting from anaerobic metabolism was not necessary to terminate a dive in this ...of blood flow and metabolism in individual ...
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Clinical review: Splanchnic ischaemia
... angiotensin system and vasopressin [14]. When α-adrener- gic receptors on postcapillary mesenteric venules and veins are stimulated, the resulting autotransfusion will improve the performance of the heart by increasing ...
7
Acute Effects of Tolvaptan on Renal Hemodynamics in Autosomal Dominant Polycystic Kidney Disease —A Randomized, Cross Over, Double Blind, Placebo Controlled Study of Renal Plasma Flow and Glomerular Filtration Rate
... plasma flow (RPF) may play a role in progression of renal disease in autosomal dominant polycystic kidney disease ...brachial blood pressures (BP) were measured using Mobil-O-Graph ...
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Non-Newtonian Blood Flow around Healthy and Regurgitated Aortic Valve with Coronary Blood Flow Involved
... regurgitated blood volume. Therefore the effective volume of blood, which had to be pumped from LV each cardiac cycle, has increase ...coronary blood flow rate at the same CC resistance has ...
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Physiological basis and image processing in functional magnetic resonance imaging: Neuronal and motor activity in brain
... the blood flow or enhanced oxygen delivery / oxygen ...venous blood volume (balloon model) suggested them as two ...and blood flow characteristics forms the basis for functional mapping ...
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Numerical investigation of impeller design variation on mechanical blood pump hemodynamics
... Decades of development have aimed to make the LVADs even smaller and less cumbersome devices. However, such an improvement results in some drawbacks; as the pump reduces size, a higher impeller speeds is required to ...
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PIV investigation of the flow fields in subject-specific vertebro-basilar (VA-BA) junction
... When focused on the confluence apex region, a zone of low shear stress that coin- cides with low momentum recirculation as the result of boundary layer separation was observed in this study. The area of this region ...
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