Samsung H60 Manual do Utilizador descarregar pdf (Página 44)

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Operation Manual

 Line Density

Select the density of the scan line. Select Low, Med, or High by tapping the button on the touch

screen or using the dial-button.

Selecting High increases the number of scan lines and improves the image resolution. However, the

frame rate is reduced.

 Filter

Select a value between 1-4 by using the Filter dial-button on the touch screen.

This is an electric filter to remove the low-frequency doppler signals generated by the movement

of blood vessel walls. Adjust the Cutoff Frequency to remove doppler signals whose frequency is

lower than the cutoff frequency.

 PRF

Use this function by rotating the PRF dial-button on the touch screen. Rotating the PRF dial-button

in the clockwise direction increases the PRF (Pulse Repetition Frequency), displaying a wider range

of blood flow speed. Rotating the dial-button in the counterclockwise direction decreases the PRF,

displaying a narrower range of blood flow speed.

 Color Map

Used to configure the post curve in a color image. Select a value between 1 and 12 by using the

Color Map dial-button on the touch screen. This can help to display blood flow with greater clarity.

 Sensitivity

Enhances the sensitivity and accuracy or frame rate of a color image.

You can use the Sensitivity dial-button on the touch screen to adjust the number of Sensitivity

between 0-5 .

 Balance

Select a balance value from 0 to 16 by using the Balance dial-button on the touch screen. The range

of a color image is adjusted by comparing the gray levels of 2D images with the doppler signal

values of color images. When the Balance value increases, the color image also appears in the part

where the gray level of a 2D image is high (the bright part), increasing the range of the color image.

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Samsung H60 Manual do Utilizador Página 44