GE Logiq P5 User Manual
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Optimizing M-Mode LOGIQ 5 Basic User Manual 5-27 Direction 2300002-100 Rev. 2 M-Mode Display Figure 5-4. M-Mode Display M-Mode Display Description, Format, Values (For Future Vadliation) M-Mode Gain Depth Scale IndicatorDisplays Overall M-Mode Gain as ##dB. Image depth, in cm. Time Scale Eight speeds: 16, 12, 8, 6, 4, 3, 2, 1. Major marker = 1 second. M-Mode Cursor Displays where the M-Mode Cursor is positioned.
Optimizing the Image 5-28 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 M-Mode Touch Panel Figure 5-5. M-Mode Touch Panel Scanning Hints HINTSThese M-Mode controls produce the following results: Edge Enhance. Affects border sharpness. Sweep Speed. Controls speed of M-Mode update. Dynamic Range. Affects the amount of gray scale information displayed.
Optimizing M-Mode LOGIQ 5 Basic User Manual 5-29 Direction 2300002-100 Rev. 2 M/D Cursor DescriptionDisplays the M-Mode cursor on the B-Mode image. AdjustingTo activate/deactivate the M-Mode cursor, press M/D Cursor. Trackball to position M-Mode cursor. Va l u e sOn/Off. BenefitsLets you position the cursor before you go into M-Mode so that you can make optimum use of the larger B-Mode image. B Pause DescriptionToggles between simultaneous and update presentation while viewing Spectral Doppler. AdjustingTo activate, press B Pause to toggle between simultaneous and update. The M-Mode trace does not restart each time the image is updated; however, a black bar may appear. Va l u e sOn/Off. BenefitsUpdate increases the Spectral Doppler display quality. BioeffectsActivating Update may change the TI and/or MI. Observe the output display for possible effects.
Optimizing the Image 5-30 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 Sweep Speed DescriptionChanges the speed at which the timeline is swept. Available in M-Mode, M Color Flow Mode, and Doppler Mode. AdjustingTo increase/decrease, select Sweep Speed. Va l u e sM-Mode: 16, 12, 8, 6, 4, 3, 2, and 1 second sweeps across the display. Doppler Mode: 12, 8, 6, 5, 4, 3, 2, and 1 second sweeps. Values vary by probe and application. Sweep Speed values are returned to the factory or user preset value when you change the following: Probe, Exam Category, Exam Calcs, or New Patient. BenefitsYou can speed up or slow down the timeline to see more or fewer occurrences over time. BioeffectsChanging the Sweep Speed may change the TI and/or MI. Observe the output display for possible effects.
Optimizing M-Mode LOGIQ 5 Basic User Manual 5-31 Direction 2300002-100 Rev. 2 Anatomical M-Mode DescriptionAnatomical M-Mode gives you the ability to manipulate the cursor at different angles and positions. The M-Mode display changes according to a motion of the M cursor. Figure 5-6. Anatomical M Mode ActivatingTo activate Anatomical M-Mode, press the Anatomical M Touch Panel control.
Optimizing the Image 5-32 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 Anatomical M-Mode (continued) AdjustingUse the Touch Panel control and Trackball to position the M cursor over the required area of the B-Mode image. • Turn the Touch Panel control left or right to move the M cursor to the desired area. • Move the Trackball left/right to move the cursor line left/right. • Move the Trackball up/down to move the M cursor up/down. Va l u e sOn/Off. BenefitsColor Flow Mode and Color M-Mode are Doppler Modes intended to add color-coded qualitative information concerning the relative velocity and direction of fluid motion within the B- Mode or M-Mode image. BioeffectsChanging the Sweep Speed, Packet Size, Frame Rate/ Resolution, Zoom, PRF, and ROI size may change the TI and/or MI. Observe the output display for possible effects.
Optimizing M Color Flow LOGIQ 5 Basic User Manual 5-33 Direction 2300002-100 Rev. 2 Optimizing M Color Flow M Color Flow Mode DescriptionM Color Flow is used for fetal cardiac applications. Color Flow overlays color on the M-Mode image using velocity and variance color maps. The Color Flow wedge overlays the B-Mode image and M-Mode timeline. The Color Flow maps available in M-Mode are the same as in Color Flow Mode. The size and position of the Color Flow window in B-Mode determines the size and position of the Color Flow window in M-Mode. All M-Mode measurements are available with M Color Flow active: depth, distance along a straight line, % stenosis, volume, trace, circumference, enclosed area, distance, time, slope, and heart rate. ActivatingTo activate M Color Flow Mode, press M (M-Mode). Then press CF (Color Flow) - or - press CF, then press M. To toggle between M Color Flow controls and Color Flow controls, press the appropriate Touch Panel Mode tab. Va l u e sOn/Off. BenefitsColor Flow Mode and Color M-Mode are Doppler Modes intended to add color-coded qualitative information concerning the relative velocity and direction of fluid motion within the B- Mode or M-Mode image.
Optimizing the Image 5-34 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 M Color Flow Mode (continued) BioeffectsChanging the Sweep Speed, Packet Size, Frame Rate/ Resolution, Zoom, PRF, and ROI size may change the TI and/or MI. Observe the output display for possible effects. Figure 5-7. M Color Flow, Page 1 Figure 5-8. M Color Flow, Page 2
Optimizing Color Flow LOGIQ 5 Basic User Manual 5-35 Direction 2300002-100 Rev. 2 Optimizing Color Flow Intended Use Color Flow Mode is a Doppler Mode intended to add color- coded qualitative information concerning the relative velocity and direction of fluid motion within the B-Mode image. Introduction A typical examination using Color Flow Mode, 1. Follow the same procedure as described under B-Mode to locate the anatomical area of interest. 2. After optimizing the B-Mode image, add Color Flow. 3. Move the color flow area of interest as close to the center of the image as possible. 4. Optimize the color flow parameters so that a high frame rate can be achieved and appropriate flow velocities are visualized. 5. Press Freeze to hold the image in memory. 6. Record color flow images as necessary. 7. If more definitive information is needed about flow, utilize the procedures described under Doppler Mode.
Optimizing the Image 5-36 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 Activating Color Flow To activate Color Flow Mode, 1. Press CF (Color Flow). The CF window appears over the B- Mode image. Move the Trackball to move the CF window. Figure 5-9. Color Flow Mode Display Uses Color Flow is useful to see flow in a broad area. Color Flow allows visualization of flow in the whole image, whereas Doppler Mode provides spectral information in a smaller area. Color Flow is also sometimes used as a stepping stone to Doppler. You use Color Flow to locate flow and vessels prior to activating Doppler. Exiting Color Flow To exit Color Flow, press CF.