Samsung SONOACE X6 Manual do Utilizador descarregar pdf (Página 15)

Chapter 5.Measurements and Calculations 5 - 15

specify a point in a Spectral Doppler image and trace a curve from that point to calculate the

velocity, integral value and average velocity of blood flow.

1. Select the Flexible Soft button [1] D Trace. “D Trace” is displayed in the user

information area.

2. Trace a curve. The method for measuring a curve is the same as in “2D Line Trace.”

3. When the measurement is finished, its result is shown on the screen.

- Vmax: Max. Velocity

- Vmean: Average Velocity

- PGmax

- PGmean

- VTI: VTI (Velocity Time Integral)

- Time: Time Change

4. A new measurement cursor appears.

The equations used for D Trace measurement are as follows:

TTdT −=

):(, IntegralTimeVelocityVTIdtvVTI

∫

×=

flowofDuration

VTI

meanV =

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 57 58

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