Samsung ACCUVIX XG Manual de usuario Pagina 254

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5-14
Operation Manual
The equations used for D Velocity measurement are as follows:
D 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.
1. Press the D A/B button on the touch screen. “D A/B” is displayed in the user information area.
2. Specify two points for which to measure velocity.
X
Use the trackball to place the cursor at the desired position and press the Set button.
3. Once measurement is done, the result is displayed on the screen. The displayed measurement
results vary depending on the settings in Utility > Measure Setup > General > Caliper.
X
V1: Velocity at Point 1
X
V2: Velocity at Point 2
X
PGmax: Max Pressure Gradient
X
V1/V2: The Ratio of Velocity
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