
Q9 Digital Color Doppler Ultrasound System
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Trackball: used to move the Steer M line.
Angle: used to rotate the Steer M line.
4.3.9.
CFM mode
Intended Use:
CFM is a Doppler mode intended to add color-coded qualitative information concerning the relative velocity and
direction of fluid motion within the B-mode image.
CFM is useful to see flow in a broad area. It allows visualization of flow in the CROI, whereas Doppler mode
provides spectral information in a smaller area. CFM is also used a stepping stone to Doppler mode. You can use
CFM to locate flow and vessels prior to activating Doppler.
In CFM mode, move the trackball to change the position of sampling box. [STEER] button is used to adjust the
angle of color sampling box (if current probe is linear probe). Press ENTER-key to fix the position of color
sampling box.At this time adjusts the size of color sampling box through moving trackball. Press ENTER- key
again and move trackball to change the color sampling position again.
Press C knob to enter into CFM mode; after C knob light is on, rotate the knob for adjusting the gain of CFM.
CFM mode Exam Procedure:
Follow the same procedure as described under B-mode to locate the anatomical area of interest.
After optimizing the B-mode image, add Color Flow.
Move the color region of interest CROI as close to the center of the image as possible.
Optimize the color flow parameters so that a high frame rate can be achieved and appropriate flow velocity can
be visualized.
Press FREEZE-key to hold the image in cine memory.
Record color flow image as necessary.
Содержание Q9
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