GE Logiq 9 User Manual

Optimizing the Image
LOGIQ E9 User Guide 2-7
Direction 5180302-100 Rev. 1
Sample Volume 
Length (SV Length)Yes Sizes the sample volume gate.
Packet Size Yes Controls the number of samples gathered for a single color flow 
vector. 
Map Compress No When you increase the value, high velocity elements in the map are 
compressed so that the map darkens. When you decrease the 
value, low velocity elements in the map are compressed so that the 
map lightens. The effect is visible in the color bar. 
CF/PDI...

Performing an Exam
2-8 LOGIQ E9 User Guide
Direction 5180302-100 Rev. 1
Doppler Mode Controls
Table 2-4:  Doppler Mode Controls
Control
Possible
BioeffectDescription/
Benefit
Update Yes Toggles between simultaneous and update presentation while 
viewing the timeline. 
SV Length 
(Trackball)Yes Moves the sample volume gate on the B-Modes Doppler Mode 
cursor. The gate is positioned over a specific position within the 
vessel. 
Doppler sample 
volume length (SV 
Length)Yes Sizes the sample volume gate....

Optimizing the Image
LOGIQ E9 User Guide 2-9
Direction 5180302-100 Rev. 1
Trace Direction No Specifies trace direction. 
Cursor Moving No Cursor Moving lets you ‘walk’ Doppler through a vessel while the 
Doppler gate is moving. 
Display Format No Changes the horizontal/vertical layout between B-Mode and M-
Mode, or timeline only. 
Modify Auto Calcs No Activates the menu to select which calculations are automatically 
calculated. 
Auto  Calcs No Activates the calculation automatically which you select in...

Performing an Exam
2-10 LOGIQ E9 User Guide
Direction 5180302-100 Rev. 1
Other Controls
Zoom
Write zooming an image changes the frame rate which tends to 
change thermal indices. The position of the focal zones may 
also change which may cause the peak intensity to occur at a 
different location in the acoustic field. As a result, the MI (TI) 
may change.
To zoom an image, adjust Zoom. A reference image appears in 
the upper, left-hand section of the display. 
To exit zoom, adjust Zoom until the...

Optimizing the Image
LOGIQ E9 User Guide 2-11
Direction 5180302-100 Rev. 1
Body Patterns
To activate body patterns, press the Body Pattern/Ellipse 
control. A maximum of 6 body pattern packages are displayed 
on the Touch Panel according to exam category and preset. 
Select the desired body pattern on the Touch Panel.  The 
selected body pattern is displayed on the monitor.
Press the Move Pattern control on the Touch Panel to 
reposition the body pattern with the Trackball and Set controls.
A probe mark...

Performing an Exam
2-12 LOGIQ E9 User Guide
Direction 5180302-100 Rev. 1
Annotating an Image
Pressing the Comment key or any keys on the alphanumeric 
keyboard initiates the comment mode. This assigns the trackball 
function to controlling the cursor and displays the comment 
library on the Touch Panel menu.
In comment mode, text can be added by using the comment 
library or by typing from the alphanumeric keyboard.
After activating the comment mode, a vertical bar type cursor 
appears on the screen. Use...

Measurement and Analysis
LOGIQ E9 User Guide 2-13
Direction 5180302-100 Rev. 1
Measurement and Analysis
B-Mode Measurements
Two basic measurements can be made in B-Mode.
• Distance
•  Circumference and Area
• Ellipse Method
• Trace Method
• Spline Method
NOTE:  The following instructions assume that you first scan the 
patient and then press Freeze. 

Performing an Exam
2-14 LOGIQ E9 User Guide
Direction 5180302-100 Rev. 1
Distance measurement
To make a distance measurement:
1. Press Measure once; an active caliper displays.
2.  To position the active caliper at the start point, move the 
Trackball.
3.  To fix the start point, press Set.
The system fixes the first caliper and displays a second 
active caliper.
4.  To position the second active caliper at the end point, move 
the Trackball.
A dotted line connects the measurement points, if preset...

Measurement and Analysis
LOGIQ E9 User Guide 2-15
Direction 5180302-100 Rev. 1
Circumference and area (ellipse) measurement
You can use an ellipse to measure circumference and area. To 
measure with an ellipse:
1. Press Measure once; an active caliper displays.
2.  To position the active caliper, move the Trackball.
3.  To fix the start point, press Set. The system fixes the first 
caliper and displays a second active caliper.
4.  To position the second caliper, move the Trackball.
5. Adjust the Ellipse...

Performing an Exam
2-16 LOGIQ E9 User Guide
Direction 5180302-100 Rev. 1
Circumference and area (trace) measurement
Tr a c eTo trace the circumference of a portion of the anatomy and 
calculate its area: 
1. Press Measure.
2. Press the appropriate Trackball key to select Trace; a trace 
caliper displays.
3.  To position the trace caliper at the start point, move the 
Trackball.
4.  To fix the trace start point, press Set. The trace caliper 
changes to an active caliper. 
5.  To trace the measurement...