Results 251 to 260 of about 321,612 (302)

Blood flow velocities in human intraplacental arteries

Acta Obstetricia et Gynecologica Scandinavica, 1994
Objective. To characterise the physiological findings of blood circulation in intraplacental arteries in normal and complicated pregnancies.Design. A descriptive cross‐sectional study. Umbilical and intraplacental artery resistance index (RI) Doppler recordings during the last trimester of pregnancy.Subjects.
P, Kirkinen, J, Kurmanavichius, A, Huch, R, Huch   +3 more
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Effect of Pentoxifylline on Microvascular Blood Flow Velocity

Angiology, 1981
Pentoxifylline (PF), known to increase red blood cell (RBC) deformability, has recently attracted much attention because of its possible effect of reducing capillary resistance. There has been practically no reliable demonstration of an increase in capillary blood flow by this drug.
N, Ohshima, M, Sato
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Effect of Adenosine on Cerebral Blood Flow Velocity

Journal of Neuroimaging, 2001
ABSTRACTBackground and Purpose. Evidence suggests that adenosine (ADN) is a potent vasodilator of cerebral vessels. However, the feasibility of manipulating human cerebral vascular resistance with AND has not been assessed by means of TCD. The purpose of this study was to quantitatively estimate the change in middle cerebral artery cerebral blood flow ...
C, Zanferrari, A Y, Razumovsky, P M, Lavados, S, Sen, S M, Oppenheimer   +4 more
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Blood flow velocity in pulmonary microvessels of bullfrog

Respiration Physiology, 1979
Flow velocity in the pulmonary microvessels of the exposed lung of bullfrogs was measured by means of a laser Doppler microscope of an oblique backward mode, together with a signal-analyzing system having a time sharing circuit triggered by the R-wave of the ECG.
M, Horimoto, T, Koyama, H, Mishina, T, Asakura, M, Murao   +4 more
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Retinal blood flow velocity in metabolic syndrome

Graefe's Archive for Clinical and Experimental Ophthalmology, 2013
Metabolic syndrome (MetS) is characterized by obesity, insulin resistance, dyslipidemia, and hypertension. The Retinal Function Imager (RFI) is a new technique for measuring retinal blood-flow velocity. This study aims to compare retinal blood flow velocity between MetS and healthy subjects.Twenty eyes of 20 MetS males and 21 eyes of 21 aged-matched ...
Shay, Gutfreund, Elena, Izkhakov, Russell, Pokroy, Marianna, Yaron, Hanny, Yeshua, Zvia, Burgansky-Eliash, Adiel, Barak, Ardon, Rubinstein   +7 more
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Cerebral blood flow velocity in preterm neonates

Brain and Development, 1985
The postnatal changes of cerebral blood flow velocity in 35 preterm neonates with or without complications were measured with a bidirectional Doppler flow meter. In the cases without complications, the pulsatility index for the anterior cerebral artery (ACA-PI) was high shortly after birth, and gradually decreased after 6 hrs as that in normal term ...
Y, Ando, S, Takashima, K, Takeshita
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VELOCITY OF BLOOD FLOW IN SCHIZOPHRENIA

Archives of Neurology And Psychiatry, 1938
Our purpose in this study was to determine the rate of blood flow in patients with schizophrenia. The work of Blumgart 1 has stimulated interest in studies on the velocity of blood flow. The circulation time, while it does not directly determine the velocity of blood flow, is the denominator in the equation distance of pathway/circulation time equals ...
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The Effect of Remifentanil on Cerebral Blood Flow Velocity

Anesthesia & Analgesia, 1998
In the present study, we investigated the effect of remifentanil on cerebral blood flow velocity (CBFV). We investigated 20 patients (ASA physical status III) scheduled for elective coronary artery bypass graft surgery. Anesthesia was induced with remifentanil 5 microg/kg IV (Group 1, n = 10) or 2 microg/kg IV (Group 2, n = 10) and was maintained with ...
A, Paris, J, Scholz, G, von Knobelsdorff, P H, Tonner, J, Schulte am Esch   +4 more
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Blood flow and blood velocity measurement in vivo by electromagnetic induction

Transactions of the Institute of Measurement and Control, 1982
The application of electromagnetic induction to the measurement of blood flow and blood velocity in vivo is reviewed, The electronic requirements are discussed and the associated problems are surveyed. A brief account is given of Bevir's virtual current theory and its application to flow and velocity measuring devices.
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Effects of aging on cardiac blood flow velocities

Journal of Clinical Ultrasound, 1988
AbstractThe effects of aging on cardiac blood flow velocities are important as a description of the natural history of the aging process and as a reference for evaluation of the aging cardiovascular system. We therefore studied these effects in 215 healthy volunteers, 120 males and 95 females, between 1 and 65 years old.
I, van Dam, P, Wijn, T, de Boo, J, Hopman, A, van Oort, J, Fast, A, Heringa, T, van der Werf, O, Daniëls   +8 more
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