GE Medical Systems 500, User Manual, Page: 160 / 636

Adding Color
LOGIQ 500 Basic Users Manual
2276612–100 Rev. 0
5–48

PFD (Pulsatile Flow Detection) Mode (option) (cont’d)
S## CFM Sampling
Freq. [kHz]
S## CFM Sampling
Freq.[Khz]
S## CFM Sampling
Freq. [kHz]
1 0.283 10 0.98 19 3.42
2 0.326 11 1.13 20 3.93
3 0.372 12 1.30 21 4.53
4 0.427 13 1.49 22 5.21
5 0.491 14 1.71 23 5.95
6 0.566 15 1.97 24 6.83
7 0.65 16 2.26 25 7.86
8 0.74 17 2.60 26 9.06
9 0.85 18 2.98 27 10.42
Table 5–7. Range Code/CFM Sampling Frequency
PF–1
Preset CFM
Packet
Size
Slant
Scan PFD
Map
Set Up ECG
0 Mid
Resolut
tion
1A
Figure 5–22. PFD-Mode Sub-Menu Page 1
PFD Map Resolution
Description Allows for the selection of PFD Map.
There are four maps: two maps (PF-1 and
PF-2) are Directional maps, two other
maps (PF-3 and PF-4) are Non-Directional
maps. Smooths color information so that it is less
grainy. It averages the color information
out over time.
Benefits Optimizes PFD color display by changing
system parameters to maximize color line
density. Each selection has a map and setting
distinction. The two maps have a
threshold type function. A shows more
pulsativity whereas B rejects low
pulsativity. The 3 settings range from 1 for
the best axial resolution and 3 for best
smoothness.
Values PF-1 to PF-4 1A, 2A, 3A, 1B, 2B or 3B