Optimizing Color Flow
LOGIQ 7 Online Help
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Direction 2392536-100 Rev. 1
Wall Filter
Description
Filters out low flow velocity signals in order to hide unusable
motion. It helps get rid of motion artifacts caused from breathing
and other patient motion.
Adjusting
To raise/lower the wall filter, press
PRF
/
Wall Filter
until you
reach Wall Filter, then adjust
Wall Filter
left/right.
Values
Values vary, depending upon probe, application, and packet
size. The wall filter is shown graphically on the color bar and is
displayed numerically on the monitor (cm/s).
Wall Filter values vary by probe and application and are
returned to factory or user preset value when you change:
Probe, Exam Category, Exam Calcs, or New Patient.
Benefits
Gets rid of excess, unnecessary low frequency signals caused
by motion.
Scan Area
Description
Scan Area sizes and positions the color window.
Adjusting
The window grows from the center of the color flow window. To
adjust the size, press
Scan Area
(Size appears in the
Trackball
Status area on the monitor display) then move the Trackball left/
right, up/down. To adjust the position, press
Scan Area
(Pos
appears in the Trackball Status area on the monitor display) then
move the
Trackball
to position the color window.
Values
Sector and Convex Probes. Ranges from 20 degrees to 120
degrees in 1 degree to 2 degree increments.
Linear Probe. Ranges from 10% to full B-Mode image.
Benefits
Increase the color window to see a larger area; decrease the
color window to improve frame rate.
Affect on other
controls
The smaller the color window, the faster the frame rate and vice
versa.
Bioeffects
Sizing the color window may change the TI and/or MI. Observe
the output display for possible effects.
Summary of Contents for LOGIQ 7
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Page 16: ...i 14 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...
Page 28: ...Introduction 1 12 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...
Page 140: ...Preparing for an Exam 4 28 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...
Page 306: ...Scanning Display Functions 6 42 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...
Page 418: ...Abdomen and Small Parts 8 18 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...
Page 644: ...Cardiology 10 128 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...
Page 688: ...Urology 12 8 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...
Page 698: ...Pediatrics 13 10 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...
Page 882: ...Customizing Your System 16 106 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...
Page 928: ...Probes and Biopsy 17 46 LOGIQ 7 Online Help Direction 2392536 100 Rev 1 ...
Page 974: ...User Maintenance 18 46 LOGIQ 7 Online Help Direction 2392536 100 Rev 1 ...
Page 983: ...GE Medical Systems ...
Page 984: ...1 2 LOGIQ 7 Basic User Manual Direction 2392206 100 Rev 1 ...