M-Mode Functional Checks - GE LOGIQ Totus Basic Service Manual

Direction 5936427, Rev. 1
4-3-9

M-Mode functional checks

For information on the Ultrasound system's different modes as well as expected results, the
LOGIQ Totus Basic User Manual. It will familiarize you with image optimization for B-Mode, M-Mode,
Color Flow, and Doppler.
Table 4-7
Power Output (Acoustic Power)
Dynamic Range
Rejection
Frame Average
Colorize
Gray Map
Rotation (Up/Down)
Frequency
Frame Rate/Resolution
Sweep Speed
Preparations
You may use a phantom (optional) when doing these tests.
1.) Connect one of the probes, to the scanner's active probe connector.
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2.) Turn ON the scanner.
Checks
• Check Horizontal Sweep, Frequency, and Focus.
• Check Compress, Reject, Power and Dynamic Range.
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B/M-Mode Functions
Control
Optimizes image quality and allows user to reduce beam intensity. 10% increments between
0-100%. Values greater than 0.1 are displayed.
Controls how echo intensities are converted to shades of gray, thereby increasing the
adjustable range of contrast.
Selects a level below which echoes will not be amplified (an echo must have a certain
minimum amplitude before it will be processed).
Temporal filter that averages frames together. This has the effect of presenting a smoother,
softer image.
Enables gray scale image colorization. To deactivate, reselect a Gray Map.
Determines how the echo intensity levels received are presented as shades of gray.
Rotates the image by selecting the value from the pop up menu.
Multi Frequency mode lets you downshift to probe's next lower frequency or shift up to a higher
frequency.
Optimizes B-Mode frame rate or spatial resolution for the best possible image.
Changes the speed at which the timeline is swept.
Section 3-5-6 "Connecting probes" on page 3-16
For available probes, the online Help or the appropriate version of the LOGIQ Totus Basic
User Manual.
1-4-1 "Label Location" on page
Chapter 4 Functional Checks
LOGIQ Totus Basic Service Manual
Description
for info about connecting the probes.
1-13.
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