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4 edition of Influence of boundary conditions on an ultrasound backscattering model of blood found in the catalog.

Influence of boundary conditions on an ultrasound backscattering model of blood

Elaine Y.L Lui

Influence of boundary conditions on an ultrasound backscattering model of blood

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  • 25 Currently reading

Published by National Library of Canada in Ottawa .
Written in English


Edition Notes

Thesis (M.Sc.) -- University of Toronto, 2001.

SeriesCanadian theses = -- Theses canadiennes
The Physical Object
FormatMicroform
Pagination1 microfiche : negative.
ID Numbers
Open LibraryOL20835609M
ISBN 100612631958
OCLC/WorldCa52623135

Recrystallization is a phenomenon that is well documented in the geological and metallurgical literature. In metallurgy, the phenomenon can be formally defined as the process by which deformed grains are replaced by a new set of non-deformed grains that nucleate and grow until the original grains have been entirely by: Book X, p. illus., 86 illus. in color. Attenuation Compensation and Estimation.- Quantitative Ultrasound and Cell Death.- Modeling of Ultrasound Backscattering by Aggregating Red Blood Cells.- Biomodulation, either endogenously initiated or by implementation of non-normative boundary conditions.- Non-hierarchically organized. It offers an approach to rigorously simulating the mass, heat and momentum transfer under turbulent flow conditions with the help of two newly published models, namely the C’2—εC’ model and the Reynolds mass flux model, especially with regard to predictions of concentration, temperature and velocity distributions in chemical and related. The scope of this paper is to enhance the reliability of numerical models utilizing FEM when considering uncertain parameters of the underlying structure. Such parameters can be system related, i.e. geometry, material behavior, boundary conditions and mesh density as well as .


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Influence of boundary conditions on an ultrasound backscattering model of blood by Elaine Y.L Lui Download PDF EPUB FB2

Influence of boundary conditions on a one-dimensional ultrasound backscattering model of blood Article in Ultrasound in Medicine & Biology 27(4) May with 28 Reads How we measure 'reads'. Ultrasound is the first-line tool for screening hepatic steatosis. Statistical distributions can be used to model the backscattered signals for liver characterization.

With the exception of digital X-ray exams, ultrasound is the leading imaging modality worldwide and in the United States. The key strengths of diagnostic ultrasound are its abilities to reveal the mechanical structure of anatomy, the dynamic movement of organs, and details of blood flow in real time.

The culminating effect of tissue on Influence of boundary conditions on an ultrasound backscattering model of blood book as it travels through the body is attenuation. Attenuation is the decreasing intensity of a sound wave as it passes through a medium.

It is the result of energy absorption of tissue, as well as reflection and scattering that occurs between the boundaries of. A computer model for simulating ultrasonic scattering in biological tissues with high scatterer concentration. Number 9, by randomly distributed slabs, with reference to the scattering of ultrasound by blood, was developed by Routh et al.

The incident waves and the scattered waves satisfy the exact boundary conditions, and Cited by: Weng X, Cloutier G, Beaulieu R, Roederer GO. Influence of acute-phase proteins on erythrocyte aggregation.

American Journal of Physiology-Heart and Circulatory Physiology. ;(6):H– [6] Boynard M, Lelievre JC, Influence of boundary conditions on an ultrasound backscattering model of blood book R.

Aggregation of red blood cells studied by ultrasound backscattering. Biorheology. ;24(5)– [7]Author: Boris Chayer, Louise Allard, Zhao Qin, Julian Garcia-Duitama, Laurence Roger, François Destrempes, J.

Influence of boundary conditions on an ultrasound backscattering model of blood book Doinikov et al, a model was developed in order to compute the radial profile of a bubble near an elastic wall of finite thickness, and therefore consists of more than two image bubbles in order to capture all of the boundary conditions at the various interfaces (figure 2(b)).

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Simulations produced temperature profiles and ablated volumes that closely matched experimental data in size and shape (Figures 6 - -9, 9,11, 11,12 Cited by:   Simulation approach.

In this simulation, each RBC particle was assumed to be a sphere of an equivalent radius of 4 μm and mass of ×10 −13 kg.

For the initial condition, RBC particles were randomly distributed without overlapping throughout a rigid two-dimensional tubular space with a diameter of mm and a length of 1 mm and a corresponding hematocrit of 30%.Author: Cheong-Ah Lee, Qi Kong, Dong-Guk Paeng, Dong-Guk Paeng. Doppler Ultrasound in Obstetrics and Gynecology Dev Maulik Expanded and updated edition highlighting current standards and breakthroughs in the technology of Doppler ultrasound Includes latest advances in 3D and color doppler and 4D fetal echocardiography Includes more than illustrations, including more than in color.

The work in [] describes the method applied to biological and non-biological particles in mathematical model of blood flow and pressure has been presented in [16,17].Adequate cellular biophysical data can be extracted without invasion due to ultrasound scattering, which allows tissue characterization and determination of red blood cell aggregation [18,19].Author: Vytautas Ostasevicius, Vytautas Jurenas, Ievgeniia Golinka, Rimvydas Gaidys, Algiment Aleksa.

A Spiral Computerized Tomography (CT) scan of the aorta were obtained from a single subject and three model variations were examined. Computational fluid dynamics modeling of all three models showed variations in the velocity contours along the aortic arch with differences in the boundary layer growth and recirculation by: The following operating conditions were determined: m 3 /min volumetric flow at a load of 25 m, velocity of rotation of rpm, and specific velocity of 0.

The ANSYS CFX software with the k-ε turbulence model was used for simulation with appropriate boundary conditions. Computational studies on the evaluation of bone status in cases of pathologies have gained significant interest in recent years. This work presents a parametric and systematic numerical study on ultrasound propagation in cortical bone models to investigate the effect of changes in cortical porosity and the occurrence of large basic multicellular units, simply called non-refilled resorption Cited by: 3.

A review of the scattering of plane waves from random media. If the random scattering medium is a tenuous distribution of particles, then single-scatter theory 1 is adequate to explain many experimental observations.

In the single-scatter approximation, the incident wave is essentially unchanged as it propagates through the scattering medium, and the particles are assumed to interact with Cited by: "The influence of boundary conditions on the accuracy of diffusion theory in time-resolved reflectance spectroscopy of biological tissues," Physics in Medicine and Biology 40(11) () [PDF].

The lumen boundary in the human coronary artery is the contour edge of a blood vessel. The intravascular ultrasound (IVUS) is the medical imaging modality used to view the lumen boundary by the clinicians to detect the coronary artery disease called : Hannah Sofian, Joel C.

Than, Norliza Mohd Noor, Suraya Mohamad. Computational Blood Cell Mechanics. Simulating blood cells for biomedical applications is a challenging goal.

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Print Book & E-Book. ISBNBook Edition: 1. Computational Biomechanics of Human Red Blood Cells in Hematological Disorders Xuejin Li. Aggregation of Red Blood Cells Studied by Ultrasound Backscattering,” Inflow/Outflow Boundary Conditions for Particle-Based Blood Flow Simulations: Application to Arterial Bifurcations and Trees Cited by: () Open and traction boundary conditions for the incompressible Navier–Stokes equations.

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