Samsung SONOACE R5 Manual do Utilizador Página 105

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Operation Manual
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Moving Sample Volume
If you move the Sample Volume in the D Only state, the system will calculate the PRF value
and the Phantom Gate position and update the information on the spectral Doppler image
accordingly. If you cannot activate HRPF, exit HPRF rst.
If you move the Sample Volume in 2D Only state, the PRF value will remain unchanged.
[Figure 4.8 HPRF]
NOTE: HPRF cannot be activated in Simultaneous Mode. Also, HPRF cannot be activated if the PRF
value X 2 is 23 KHz or greater before HPRF is activated.
CAUTION:
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The Phantom Gate position may 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 SVs are located in the vessels, all Doppler components will appear in the
spectrum, causing noise.
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