Samsung SONOACE R3 Bedienungsanleitung Seite 137

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Chapter 5 Measurements and Calculations
5-13
The equations used for D Velocity measurement are as follows:
Doppler Velocity (A/B)
This is a basic measurement that is available in Spectral Doppler Mode only. You can specify two points
in a Spectral Doppler image and measure the velocity at each point to calculate the ratio of the velocity
between them.
You can calculate up to 4 sets of velocity ratios. The points representing each set are dierentiated into
Point A and B.
1. Press the Sofmenu button [1] Distance to select Doppler Velocity (A/B). “Doppler Velocity (A/B)” is
displayed on the left side of the screen.
2. Specify two points to measure velocity for.
X
Place the cursor at a desired position with the trackball, and press the Set button.
3. When the measurement is nished, its result is shown on the screen.
X
V_A: Velocity at Point A
X
V_B: Velocity at Point B
X
RI: Resistivity Index
X
A/B: The Ratio of Velocity
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