
Chapter 4 Diagnosis Modes
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Spectrum Type
Set the Doppler spectrum type. Select a type between 1 and 3 with the dial-button.
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Spectrum Enhancement
Adjust the brightness and contrast of the spectral Doppler image. Select a value between 1 and 4
with the dial-button.
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Filter
Press the dial-button to turn it on or o. When on, low-frequency Doppler signals from the
movement of the vessel walls are removed.
■
Power
Power is the intensity of the acoustic output. Select a value between 10 and 100 with the dial-
button.
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Multi Frequency
Adjust the frequency within the ROI box. Select Pen or Gen with the dial-button.
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TDW
NOTE:
This appears on the soft menu only when using a cardiac application with the phased array
probe.
Press the dial-button to start TDW Mode. TDW stands for Tissue Doppler Wave. It represents the
movement of fast-moving tissues such as the heart.
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