Samsung H60 Manual do Utilizador descarregar pdf (Página 50)

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Operation Manual

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

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Resizing Sample Volume: Using the touch screen: Select the SV Size dial-button on the touch

screen.

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Adjusting Sample Volume Angle: Rotate the Angle dial-button on the control panel to select a

value between -80-80 degrees. Press the Angle dial-button to select either -60, 0, or 60 degrees.

 Adjusting Doppler Baseline

Adjust the Baseline by rotating the dial-button on the touch screen.

 HPRF (High PRF) Function

Adjust the blood flow above the speed limit at a specific depth. The scale is increased; this can only

be used in PW Spectral Doppler mode (D Only).

NOTE: Configure Setup > System > Imaging > Display > Common Settings > HPRF.

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Activating HPRF

Increasing the scale at a specific depth to a certain point automatically activates HPRF. 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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Finishing HPRF

While HPRF is in use, decrease the scale value by one step to finish HPRF. Here, the PRF value

becomes the maximum value in the current PW Spectral Doppler mode.

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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.

CAUTION:

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

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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.

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Samsung H60 Manual do Utilizador Página 50