GE Medical Systems 500, User Manual, Page: 161 / 636

Adding Color
LOGIQ 500 Basic Users Manual
2276612–100 Rev. 0
5–49

PFD (Pulsatile Flow Detection) Mode (option) (cont’d)
OFF
Preset CFM
PFD
type
Penet. Persist
ence
Set Up ECG
1
High
Resoltn
Figure 5–23. PFD-Mode Sub-Menu Page 2
Persistence PFD Type
Description Retains the largest pixel color value until a
larger value is detected or preset time has
elapsed.
When a higher color value for a pixel is
detected, that value is retained and the
persistence time is reset for that pixel.
When the persistence time elapses for
that pixel, color is deleted and it returns to
gray scale.
Allow for the selection of the algorithm for
detection of PFD.
Benefits Present a continuous, high sensitivity color
image. PFD Type shows sensitivity, where 1 is
less sensitive (for larger vessels) and 3 is
the most sensitive (for low pulsatile arterial
flow).
Values OFF, 1, 2, 3, 4, 5 or 6 1, 2 or 3