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Data Adaptive Estimation of Transversal Blood Flow Velocities

, 2014
Elham Pirnia, Andreas Jakobsson, Erik Gudmundson, Jørgen Arendt Jensen   +3 more
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Astaxanthin increases choroidal blood flow velocity

Graefe's Archive for Clinical and Experimental Ophthalmology, 2011
Previous studies have reported that astaxanthin (AXT) has antioxidative and anti-inflammatory effects in addition to its ability to shorten blood transit times. As laser speckle flowgraphy (LSFG) can noninvasively visualize the hemodynamics of the choroidal circulation, we used the technique to evaluate whether continuous ingestion of 12 mg of AXT per ...
Michiyuki, Saito, Kazuhiko, Yoshida, Wataru, Saito, Akio, Fujiya, Kazuhiro, Ohgami, Nobuyoshi, Kitaichi, Hiroki, Tsukahara, Susumu, Ishida, Shigeaki, Ohno   +8 more
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Decorrelation-based blood flow velocity estimation: effect of spread of flow velocity, linear flow velocity gradients, and parabolic flow

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2002
In recent years, a new method to measure transverse blood flow, based on the decorrelation of the radio frequency (RF) signals has been developed. In this paper, we investigated the influence of nonuniform flow on the velocity estimation. The decorrelation characteristics of transverse blood flow using an intravascular ultrasound (IVUS) array catheter ...
Lupotti, F.A., Steen, A.F.W. van der, Mastik, F., Korte, C.L. de   +3 more
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Noninvasive Blood Flow Velocity Determination

2019 19th International Symposium on Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering (ISEF), 2019
Electromagnetic flow meter method is proposed for non-invasive vascular measurements. A forward 3D electromagnetic, finite element method model is developed. The model employs the anatomically precise geometrical model of human leg with known blood flow speed in its vessels and tissue electrical conductivities.
Iliana Marinova, Valentin Mateev
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Effects of blood donation on cerebral blood flow velocity

Transfusion, 1990
Eighteen healthy male blood donors, nine with hematocrit (Hct) of 0.40 to 0.45 (normal Hct) and nine with Hct of 0.49 to 0.52 (upper‐limit Hct), were monitored by continuous‐wave internal carotid Doppler sonography and hematologic tests for 28 days after blood donation, to ascertain whether and to what extent a single standard donation may modify the ...
C, Silvani, A, Zanella, F, Rossi, G, Cabrini, C, Ferrari, B, Cesana, G, Sirchia   +6 more
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Fetal Ophthalmic Artery Blood Flow Velocity Waveforms

Gynecologic and Obstetric Investigation, 1996
To evaluate alterations in vascular impedance of the fetal ophthalmic artery (OA) with advancing gestation.Color Doppler flow imaging and pulsed Doppler ultrasonographic assessment were performed on 28 normal fetuses, at gestational ages ranging from 21 to 40 weeks.
S, Aoki, T, Hata, Y, Ariyuki, D, Senoh, K, Makihara, K, Hata, M, Kitao   +6 more
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Neonatal Cerebral Blood Flow Velocity Measurement

Clinics in Perinatology, 1985
This article discusses the background, methodology, previous clinical studies, and the clinical role and limitations of the noninvasive Doppler technique in the assessment of the cerebral circulation of the newborn infant.
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Coronary blood flow velocities during rotational atherectomy

Catheterization and Cardiovascular Diagnosis, 1997
This study was designed to evaluate the alterations in doppler derived coronary blood flow velocities and flow reserve following rotational ablation. Changes in doppler derived coronary blood flow velocity variables have been valuable in assessing the physiological outcome following coronary balloon angioplasty.
K, Kumar, G, Dorros, C, Dufek, L, Mathiak   +3 more
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