Samsung MYSONO U6 Manual do Utilizador descarregar pdf (Página 132)

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Operation Manual

Starting & Ending PW Spectral Doppler Mode

Press the PW button on the control panel to enter PW Spectral Doppler mode. Press it again to return

to 2D Mode.

Press the Set button on the control panel to obtain a spectral doppler image.

PW Spectral Doppler Mode Screen

 Sample Volume

The Doppler spectrum is displayed when the sample volume is located above the blood ow on the

2D image. The size and depth of Sample volume is displayed in mm units. Its position is moved with

the trackball and displayed in the xx.xx@yy.yy mm format. The information is formatted to indicate

a sample volume that is xx.xx mm in size at a depth of yy.yy mm.

For example, [email protected] means a 2.00mm sample volume at 16.70mm in depth.

X

Moving Sample Volume: Use the trackball on the control panel.

X

Resizing Sample Volume After pressing the Change button on the control panel, adjust the size

of the sample volume by using the trackball. Press the Change button again to return to the

Sample Volume Position Control screen. Here, an icon is displayed in the upper left corner of the

screen to indicate whether the trackball is set to SV Position or SV Size.

X

Adjusting Sample Volume Angle: Use the control panel’s Angle dial-button to adjust the sample

volume angle. Rotating the Angle dial-button clockwise increases the angle within a range of

–70 to +70.

 HPRF

NOTE:

X

Enable/disable HPRF from Utility > Setup > General > Scan Mode > Option.

X

HPRF is not activated in Simultaneous Mode. In addition, HPRF cannot be enabled if 200% of PRF

is higher than 23KHz.

Adjust the blood ow above the speed limit at a specic depth. Using this functions doubles the

current scale, and is only available in PW Spectral Doppler mode. HPRF stands for High PRF.

X

Activating HPRF

Increasing the scale at a specic depth to a certain point automatically activates HPRF. A The

Phantom Gate will appear on the D Line at a position higher than the sample volume. Once HPRF

starts, PRF does not increase even if you increase the scale value.

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Samsung MYSONO U6 Manual do Utilizador Página 132