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6 - 14 Operator’s Manual

6 Image Acquisition

8. Double press <Set> to finish the editing, and the sample line is displayed in white.

9. You can edit the curve if needed:

a. After finishing the sampling line, tap [Edit] on the touch screen. The cursor becomes the

icon .

b. Move the cursor over the curve, press <Set> to activate the spot.

c. Move the cursor to change the shape of the curve.

d. Double press <Set> to finish the editing, and the sample line is displayed in white.

NOTE:

Tap [Delete] on the touch screen to remove the curve, and tap [Edit] to re-edit the curve.

10. Adjust the parameters to obtain the desired tissue of Free Xros CM image. Then, save the

image.

11. Tap [Free Xros CM] or press the user-defined key for “Free Xros CM”, or press <B> to exit.

6.7.3 Anatomical M Mode Parameters

In anatomical M mode, adjustable parameters are similar with these in M mode.

6.8 PW/CW Mode

PW (Pulsed Wave Doppler) mode or CW (Continuous Wave Doppler) mode is used to provide

blood flow velocity and direction utilizing a real-time spectral display. The horizontal axis

represents time, while the vertical axis represents Doppler frequency shift.

PW mode provides a function to examine flow at one specific site for its velocity, direction and

features; while CW mode proves to be much more sensitive to high velocity flow display. Thus, a

combination of both modes will contribute to a much more accurate analysis.

CW module is optional.

6.8.1 PW/CW Mode Image Scanning

Perform the following procedure:

1. Select a premium image during B mode or B+ Color (Power) scan, and adjust to place the area

of interest in the center of the image.

2. Press <PW>/<CW> to adjust the sampling line.

The sampling status will be displayed in the image parameter area.

3. Set the position of the sample line and the SVD by using the trackball/trackpad, and adjust the

angle and SV size according to the actual situation.

4. Press <PW>/<CW> again or <Update> to enter PW/CW mode and perform the examination.

Observe and calculate the data based on B mode or Color mode image. You can also adjust the

SV size, angle and depth in the real-time scan.

5. Adjust the image parameters to obtain optimized images.

6.8.2 PW/CW Mode Image Parameter

Gain

This function is intended to adjust the gain of spectrum map. The real-time gain value is displayed

in the image parameter area.

Mindray ME7 User Manual

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