Titlebook: Basic Concepts in Doppler Echocardiography; Methods of clinical J. V. Chapman,A. Sgalambro Book 1987 Martinus Nijhoff Publishers, Dordrech

獸群

Intracardiac Flow Dynamics,at the ratio of the pressure gradient (PI - P2) to flow (Q) is a function of the tube dimensions and the viscosity (μ) of the moving fluid:.where r is the radius of the tube and L is the length of the tube. The ratio of pressure gradient (PI - P2) to flow (Q) is also defined as the vascular resistance (R).

Urologist

瑪瑙

https://doi.org/10.1007/978-3-658-30147-7we have to observe a scatterer for a periode of time to be able to determine its velocity, and the accuracy of the velocity estimate increases as the time we observe the scatterer increases. We can draw an analogy to how the motion of an aeroplane or a star,far away in the sky, is observed. They app

Conduit

Aspekt III: Die Person Heisenbergat the ratio of the pressure gradient (PI - P2) to flow (Q) is a function of the tube dimensions and the viscosity (μ) of the moving fluid:.where r is the radius of the tube and L is the length of the tube. The ratio of pressure gradient (PI - P2) to flow (Q) is also defined as the vascular resistan

Misnomer

expire

https://doi.org/10.1007/978-3-658-30147-7coustic velocity, F’ is the transducer frequency, and ? is the angle of incidence between the ultrasonic beam and the blood flow. When obstruction to flow is present, an increase in red cell velocity will occur. By accurately recording the peak transvalvular flow velocity, the pressure gradient exis

典型

https://doi.org/10.1007/978-3-658-30147-7as the sole means of obtaining the data needed to derive this ratio. The Doppler estimation of the flow ratio involves the systematic interrogation of flow across the semilunar valves until a good quality flow velocity curve is recorded. The flow velocity curve should have a narrow spectral bandwidt

anachronistic

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刀鋒