Cfm Mode Imaging - IMV EXAPad Instruction Manual

5. CFM Mode imaging

5. CFM Mode imaging
The edge of the CFM
box is blue when the
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repositioning is active
The colour scale which is also the PRF scale is graduated in two
The colour scale which is also the PRF scale is graduated in two parts in order to distinguish the two
parts in order to distinguish the two directions of the flows: towards
directions of the flows: towards and away from the probe. Slow flows are depicted in dark red or dark
and away from the probe. Slow flows are depicted in dark red or
blue; high speeds are passing from blue to white or from red to yellow (depending on the direction).
dark blue; high speeds are passing from blue to white or from red to
yellow (depending on the direction).
**POINT TO CFM**
CFM: Activation of Colour Flow Mapping added to B image.
1
Activation of Colour Flow Mapping added to B image.
B: Deactivation of CFM mode.
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CFM Frequency: Adjust CFM Frequency
3
**POINT TO B**
Position box: Adjust position or size of CFM box. To adjust size,
4
Deactivation of CFM mode.
slide from left to right to enlarge and decrease horizontally and
up and down to enlarge and decrease vertically.
**POINT TO CFM FREQUENCY**
5 PRF: Adjust Pulse Repetition Frequency in CFM. Updated PRF
Adjust CFM Frequency
value in Hz is displayed and the PRF colour scale in cm/s is
updated on the left of screen.
6 Steering: The CFM box can be steered using Steering. Only
**POINT THE BLUE BOX IN CENTRE OF IMAGE**
possible using the linear probe.
The edge of the CFM box is blue when the repositioning is active
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Wall Filter: This filter low frequencies linked to vascular wall
movements and not flows. The higher the filter, the more the
**POINT TO THE GREY BOX ON LEFT-HAND SIDE ABOVE POSITION**
low frequencies of circular origin will be removed.
Adjust position or size of CFM box.
Access the advance adjustments menu by swiping across from the left-hand side of the screen.
Access the advanced adjustments menu by taping at the left-
To adjust size, slide from left to right to enlarge and decrease horizontally and up and down to enlarge
hand side of the screen.
and decrease vertically.
**POINT TO PRF**
Adjust Pulse Repetition Frequency in CFM. Updated PRF value in Hz is displayed and the PRF colour
scale in cm/s is updated on the left of screen.
**POINT TO STEERING**
The CFM box can be steered using Steering. Only possible using the linear probe.
**POINT TO WALL FILTER**
This filter low frequencies linked to vascular wall movements and not flows. The higher the filter, the
more the low frequencies of circular origin will be removed.
**POINT TO POWER**
Adjustment of emission power in CFM
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5
6
7
CFM DUAL
1 2
**POINT TO CFM-B AT BOTTOM OF SCREEN**
Enabled you to see one image in CFM mode and one in B mode.
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2
3
4
5
6
Instruction manual
Persistence: Adjust persistence
1
2
Power: Adjustment of emission power in CFM
3
Spatial Filter: This filter smooths the colour doppler
Min Velocity: The CFM velocity is on when CFM is activated.
4
This function defines minimum visible velocity.
Invert: Inversion of the colours in CFM.
5
Fast: Activation of fast will increase the frame rate.
6
Deactivation increases resolution.
Enabled you to
see one image in
CFM mode and
one in B mode.
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