GE Logiq P5 User Manual

							LOGIQ 5 Basic User Manual 6-1
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Chapter 6
Scanning/Display Functions
Describes additional ways in which to adjust the image. 
In addition, describes additional ways to get useful 
information electronically.  
						

							Scanning/Display Functions
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Zooming an Image
Introduction
Zoom is used to magnify a zoom region of interest (ROI). The 
system adjusts all imaging parameters accordingly. You can also 
zoom frozen images. 
Zoom
Bioeffect
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 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 reference zoom image is 
removed. 
Acoustic
Output
HazardObserve the output display for possible effects.  
						

							Freezing an Image
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Freezing an Image
Introduction
Freezing a real-time image stops all movement and allows you 
to measure and print the image.
You can also freeze the image during VCR playback. 
NOTE:  While the image is frozen, all Power Output is suspended. 
NOTE:  Selecting a new probe unfreezes the image
Freezing an image
To freeze an image, 
1.  Press Freeze. The key backlights and the real-time icon is 
removed from the monitor (real-time icon: --|--|--) 
If you are in a mixed mode, both screen formats stop 
immediately. Deactivating Freeze restarts both modes and 
places a black bar on the trace to indicate the time discontinuity. 
To reactivate the image, 
1.  Press Freeze again. 
NOTE:  Deactivating Freeze erases all measurements and calculations 
from the display (but not from the worksheet). 
 Use the Trackball to start CINE after pressing Freeze.  
						

							Scanning/Display Functions
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Freezing an Image (Footswitch Option)
You can also freeze the image via the footswitch.  
						

							Freezing an Image
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Post processing
You can use the following controls to process a frozen B-Mode 
image. 
• Map
• Zoom
• Rotation
• Reverse
• Rejection
• Compression
• B Softener
• Focus Width
• Gain
You can use the following controls to process a frozen Color 
Flow or Doppler Mode image.
• Angle Correct
• Invert
• CF
• Threshold
• Packet Size
• ACE
• Dynamic Range
NOTE:  Color cannot be added to a black and white image that has 
been frozen.
Auto Optimize. Optimizes the B-Mode image, Color Flow ROI, 
or Doppler Spectrum.  
						

							Scanning/Display Functions
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Using CINE
Introduction
CINE images are constantly being stored by the system and are 
available for playback or manual review via CINE. 
Timeline data is continually stored at four times the display width 
of timeline data (and updates the corresponding B-Mode 
images). 
You can view CINE as a continuous loop via CINE Loop or 
manually review CINE images frame by frame via the Trackball. 
Data in CINE is available until new data is acquired. CINE is 
stored on the systems memory and can be archived as well. 
CINE is useful for focusing on images during a specific part of 
the heart cycle or to view short segments of a scan session. 
Activating CINE
To activate CINE,
1. Press Freeze.
2.  Move the Trackball. 
						

							Using CINE
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CINE and Monitor Display
The CINE display (located on the left-hand side of the monitor) 
indicates which frame you are viewing of the whole loop 
(62:123), as well as the time at which this frame occurs within 
the loop (1.6:3.2 s). 
 Figure 6-1. CINE Display 
						

							Scanning/Display Functions
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Using CINE
The following Touch Panel appears: 
 Figure 6-2. CINE Touch Panel
Adjusting CINE Loop Speed
Rotate the Loop Speed control at the bottom of the Touch Panel.
Disconnecting B-Mode CINE from Timeline CINE
Select B-Mode or Timeline CINE. 
						

							Annotating an Image
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Annotating an Image
Introduction
The annotation function provides the capability to type the 
comments of free text and/or insert the pre-defined comments 
from the comment library. It also provides the user with arrow 
markers to point to parts of the image.
Pressing the Comment key or any keys on the alphanumeric 
keyboard initiates the annotation mode. This assigns the 
trackball function to controlling the cursor and displays the 
annotation library on the Touch Panel menu.
 Figure 6-3. Comment Key on the Front Panel
1. Comment Key
PDIPW
L
R B Pause Auto
DepthM
Zoom
Ellipse Body PatternMeasure
M/D Cursor
Scan Area
Set
Clear Comment
Patient
21
1 
						

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Introduction (continued)
In annotation mode, text can be added by using the Touch Panel 
Menu library or by typing the alphanumeric keyboard.
Annotations can be erased by changing modes, powering down, 
or when Clear or New Patient are pressed.
In addition, the display’s home position can be changed 
(preferred annotation area) for each display so that all 
subsequent annotations begin in the same spot.
Pressing the F7 (Cursor Home) key returns to the user 
specified position or factory default position.
A new cursor home position is established by placing the cursor 
in the desired position and pressing Shift+Home.
Annotation Mode is activated by pressing the Comment key. 
Annotation Mode can also be automatically activated by typing 
from the alphanumeric keyboard.
NOTE:  In this case, the cursor begins at the same location where the 
annotation mode was exited.
After activating the annotation mode, a vertical bar type cursor 
appears on the screen. Use the Trackball to move the cursor.
The factory default color for annotations is yellow. The color 
selection can be changed to any of the colors available on the 
system. The choices are white, yellow, bright red, orange, etc.
NOTE:  The user cannot change the Font Family and Size.
To indicate a specific annotation or text group is selected, the 
color turns to green. Once the annotation is set or fixed, the 
color returns to yellow or to the user selected color.
To delete comments by character, press the Backspace key.
To delete all annotations and arrow marks, press the Clear key 
twice immediately after entering the annotation mode. 
To end the Comment/Library Annotation function, press Set.
To move by words or by text group, press the Tab key.