GE Logiq P5 User Manual
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LOGIQ 5 Basic User Manual 6-1 Direction 2300002-100 Rev. 2 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 6-2 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 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 LOGIQ 5 Basic User Manual 6-3 Direction 2300002-100 Rev. 2 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 6-4 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 Freezing an Image (Footswitch Option) You can also freeze the image via the footswitch.
Freezing an Image LOGIQ 5 Basic User Manual 6-5 Direction 2300002-100 Rev. 2 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 6-6 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 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 LOGIQ 5 Basic User Manual 6-7 Direction 2300002-100 Rev. 2 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 6-8 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 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 LOGIQ 5 Basic User Manual 6-9 Direction 2300002-100 Rev. 2 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
Scanning/Display Functions 6-10 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 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.