Results 341 to 350 of about 11,049,702 (406)
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European Radiology, 2001
Traditionally, Doppler ultrasound has been used to estimate blood flow as the mean velocity multiplied by the vessel area, but this is subject to significant errors and may be difficult to perform accurately. Microbubbles, developed as contrast agents for ultrasound, were initially envisaged as useful for increasing the intensity of echoes and thus ...
Martin J. K. Blomley +3 more
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Traditionally, Doppler ultrasound has been used to estimate blood flow as the mean velocity multiplied by the vessel area, but this is subject to significant errors and may be difficult to perform accurately. Microbubbles, developed as contrast agents for ultrasound, were initially envisaged as useful for increasing the intensity of echoes and thus ...
Martin J. K. Blomley +3 more
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Acta Oto-Laryngologica, 1977
Cochlear blood flow in the guinea pig was investigated using Tracer Sephadex 15 microspheres labelled with radioactive nuclides. A reference organ technique was used for quantitative measurements of cardiac output and the blood flow in the cochlear soft tissue, CNS and kidney.
E. Hultcrantz, B. Ågerup, C. Angelborg
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Cochlear blood flow in the guinea pig was investigated using Tracer Sephadex 15 microspheres labelled with radioactive nuclides. A reference organ technique was used for quantitative measurements of cardiac output and the blood flow in the cochlear soft tissue, CNS and kidney.
E. Hultcrantz, B. Ågerup, C. Angelborg
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Journal of Biomechanics, 1971
Abstract In this paper the theory of micropolar fluids with stretch is used to analyze blood flow in comparatively small arteries, say 100 μ dia. Physically micropolar fluids with stretch can provide a mathematical model to represent blood with its deformable substructure, since not only the independent rotation of red cells but also the flexibility ...
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Abstract In this paper the theory of micropolar fluids with stretch is used to analyze blood flow in comparatively small arteries, say 100 μ dia. Physically micropolar fluids with stretch can provide a mathematical model to represent blood with its deformable substructure, since not only the independent rotation of red cells but also the flexibility ...
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Nonlinear Analysis: Real World Applications, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
M. E. Clark +3 more
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
M. E. Clark +3 more
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The American Journal of Digestive Diseases, 1963
In summary, the vascular bed of the stomach is an area of great potential importance to both gastric and vascular physiologists. There are available many technics for its investigation. Simultaneous study of both hemodynamic and secretory phenomena can be conducted on the stomach.
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In summary, the vascular bed of the stomach is an area of great potential importance to both gastric and vascular physiologists. There are available many technics for its investigation. Simultaneous study of both hemodynamic and secretory phenomena can be conducted on the stomach.
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The Flow of Blood in the Capillaries
Physics in Medicine & Biology, 1968A model consisting of right circular cylinders moving through a tube is chosen to represent the flow of corpuscles through the capillaries. A numerical solution of the equations of motion enables the flow to be considered in detail. The pressure gradient-volume flux relationships are calculated for different values of the parameters of the system. Flow
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Blood, 2009
In this issue of Blood, van der Meijden and colleagues report on the mechanisms by which collagen exposure in flow-dependent circulation contributes to thrombus formation.
Alvin H. Schmaier, Alec A. Schmaier
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In this issue of Blood, van der Meijden and colleagues report on the mechanisms by which collagen exposure in flow-dependent circulation contributes to thrombus formation.
Alvin H. Schmaier, Alec A. Schmaier
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Blood Flow and Thrombosis [PDF]
Thrombosis and Haemostasis, 1974 SummaryPlatelet thrombi have been observed at bifurcations, constrictions and stenoses in the arterial tree where flow separation with accompanying vortex formation can occur. Hence, studies of the flow behavior of human blood cells in models of à vessel obstruction and a sudden expansion of a vessel lumen were carried out.
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The American Journal of Digestive Diseases, 1963 1. The intramural blood vessels of the human colon have been described. 2. Five methods that have been used to study colonic mucosal blood flow in patients with colostomies or with normal colons were briefly outlined along with some of the limitations of each technic. 3.
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The Bulletin of Mathematical Biophysics, 1967
The rigidity of the skull and the inertial characteristics and incompressibility of its contents cause the elastic cerebral arteries and veins to act over brief periods of time like rigid tubes of relatively small diameter. Poiseuille's law is applicable to their behavior.
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The rigidity of the skull and the inertial characteristics and incompressibility of its contents cause the elastic cerebral arteries and veins to act over brief periods of time like rigid tubes of relatively small diameter. Poiseuille's law is applicable to their behavior.
openaire +3 more sources