GE Vivid S60N, Базовое руководство по обслуживанию

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D
IRECTION
FR091521, R
EVISION
1 V
IVID
S60N/V
IVID
S70N B
ASIC
S
ERVICE
M
ANUAL
Chapter 4 - General Procedures and Functional Checks 4-19
P R E L I M I N A R Y
4-3-3-3 Adjust the 2D Mode Controls
The following controls can be adjusted to optimize the 2D Mode display:
• Swipe to page 2 on the Touch panel and press either Soft or Sharp Auto Tissue setting.
- Soft : optimizes the radial and lateral uniformity and brightness of the tissue continuously in
real-time.
The mention “Soft” is displayed on the upper right corner of the image area
- Sharp : further enhances the image display by optimizing the gray scale curve.
The mention “Sharp” is displayed on the upper right corner of the image area
The Auto Tissue setting (Soft or Sharp) can be turned on/off by pressing Auto on the Control panel.
The last used setting is then applied.
The Auto Tissue settings are only available in live scanning and cannot be turned off when the
image is stored.
• If available, press Virtual Apex (probe dependent) to improve near field imaging, allowing
increased visibility up to the width of the full probe aperture close to the surface.
• Use the Gain and TGC controls to optimize the overall image.
Gain increases or decreases the amount of echo information displayed. TGC compensates for
depth-related attenuation in the image.
• Use the Depth control to adjust the range to be imaged.
• Use the Frequency control (move to higher frequencies) or the Frame rate control (move to lower
frame rate) to increase resolution in image.
• Use the Frequency control (move to lower frequency) to increase penetration.
• Use the Reject control to reduce noise in the image.
• Use the DDP control to optimize imaging in the blood flow regions and make a cleaner, less noisy
image.
• Use UD Clarity (Cardiac) or UD Speckle reduce (non-cardiac) to reduce image speckle. Extra care
must be taken to select the optimal Speckle reduction level, as too much filtering of speckle can
mask or obscure desired image detail.
• Adjust Octave to toggle between fundamental and Harmonic mode.
• Press Color maps and select a grey map from the menu on screen.
• If using a 4D probe:
- Adjust the Quick Rotate control on the Touch panel or press Angle on the Control panel to
rotate the scan plane to predefined angles.
- Adjust the Rotate rotary of the Touch panel to fine tune the angle adjustment.
A scan plane indicator is displayed showing the angle position of the scan plane.
WARNING WARNING
Always use the minimum power required to obtain acceptable
images in accordance with applicable guidelines and policies.