Samsung SONOACE R7 Manual do Utilizador descarregar pdf (Página 124)

4-24

Operation Manual

X

Moving Sample Volume

To move the Sample Volume position in the D Only state, the system calculates PRF values and the

Phantom Gate position, and updates them on the PW Spectral Doppler image. HPRF is terminated

when HPRF cannot be activated.

When Sample Volume is moved in the 2D Only state, the PRF values don’t change.

NOTE: HPRF is not activated in Simultaneous Mode. It is also not activated if [PRF*2] exceeds 23KHz.

CAUTION:

X

The Phantom Gate position can be located outside the 2D image area in Zoom Mode.

X

Make sure that sample volume and Phantom Gate are not placed together in the measuring

area. If more than two Sample Volumes are located in the vessels, all Doppler components will

appear in the spectrum, causing noise.

 PW Spectral Doppler Mode Soft Menu

 SV Size / Angle

X

SV Size

Set the size of the Sample Volume. Select a size between 0.5 and 15 by rotating the

Soft Menu

dial-

button

[2]

X

Angle

If you press the

Soft Menu

dial-button

[2]

, the angle changes – 60, 0 or 60 degrees. The speed can be

measured accurately by adjusting the angle of the Sample Volume.



Auto Calc

Press the

Soft Menu

dial-button

[3]

to turn it on or o.

If it is turned on, Doppler Trace is performed and the resulting values are displayed. When it is on, the

Mean Trace

button is activated. The displayed values are as below. For information on setting display

values, please refer to "Chapter 7. Utility.”

1 2 ... 119 120 121 122 123 124 125 126 127 128 129 ... 319 320

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