GE 5935000E10, Базовое руководство по обслуживанию

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D
IRECTION
5750007-1EN, R
EV
. 1 LOGIQ E10 B
ASIC
S
ERVICE
M
ANUAL
4 - 20 Section 4-2 - Functional checks
M-Mode Checks
For information on the Ultrasound system’s different modes as well as expected results, the Basic User
Manual or User Guide will familiarize you with image optimization for
B-Mode , M-Mode , Color Flow ,
and Doppler .
Preparations
You may use a phantom (optional) when doing these tests.
1.) Connect one of the probes, to the scanner’s active probe connector.
- see: Section 3-4-6 "Connecting Probes" on page 3-19 for info about connecting the probes.
- For available probes, see: On-line Help or refer to the appropriate version of the LOGIQ E10
Basic User Manual. See: Section 1-5 "Label locations" on page 1-26 .
2.) Turn ON the scanner.
Checks
• Check Horizontal Sweep, Frequency, and Focus
• Check Compress, Reject, Power and Dynamic Range
Table 4-8 B/M-Mode Functions
Control Description
Power Output (Acoustic
Power) Optimizes image quality and allows user to reduce beam intensity. 10% increments between
0-100%. Values greater than 0.1 are displayed
Dynamic Range
Controls how echo intensities are converted to shades of gray, thereby increasing the
adjustable range of contrast.
Focus Number and
Position
Increases the number of transmit focal zones or moves the focal zone(s) so that you can
tighten up the beam for a specific area. A graphic caret corresponding to the focal zone
position(s) appears on the right edge of the image.
Rejection
Selects a level below which echoes will not be amplified (an echo must have a certain
minimum amplitude before it will be processed).
Frame Average
Temporal filter that averages frames together. This has the effect of presenting a smoother,
softer image.
Colorize Enables gray scale image colorization. To deactivate, reselect a Gray Map.
Gray Map Determines how the echo intensity levels received are presented as shades of gray.
Rotation (Up/Down) Rotates the image by selecting the value from the pop up menu.
Frequency
Multi Frequency mode lets you downshift to probe's next lower frequency or shift up to a
higher frequency.
Frame Rate/Resolution Optimizes B-Mode frame rate or spatial resolution for the best possible image.
Sweep Speed Changes the speed at which the timeline is swept.