Optimizing the Image
5-78 LOGIQ 7 Online Help
Direction 2392536-100 Rev. 1
Color Flow Line Density
Description Optimizes the Color Flow frame rate or spatial resolution for the
best possible color image.
Adjusting To adjust the line density, press Line Density Touch Panel key.
Values The current frame rate is shown on the Touch Panel. Frame
Rate/Resolution values vary by: Probe, Exam Category, Exam
Calcs, New Patient, and Frequency.
Settings are returned to factory or user preset value when you
change any of the above.
Benefits Fetal heartbeat, adult cardiac applications, and clinical
Radiology applications require significantly higher frame rates.
High resolution is useful in situations where very small vessels
are being imaged, e.g., thyroid, testicles.
Affect on other
controls
Frame rate changes the vector density and frame rate.
Bioeffects Activating color flow frame rate/high resolution may change the
TI and/or MI. Observe the output display for possible effects.
Map
Description Allows you to select a specific color map. After you have made
your selection, the color bar displays the resultant map.
Adjusting After you activate Color Flow, the Color Flow Touch Panel
displays. To cycle through available maps, select Map, move the
Trackball to view available maps, and press Set to select.
Values Velocity Maps (VL). Flow shown as blue away/red toward the
probe.
Velocity Variance Maps (VV). Provides a measure of turbulence
(stenosis). Adds green to velocity maps.
Benefits Shows the direction of the flow and highlights the higher velocity
flows.
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