GE Voluson 730Pro, Основное руководство пользователя

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2D Mode
5.6 2D Automatic Optimization
This function will optimize the contrast resolution according to the histogram of the scan area.
The shape of the ROI will depend on the probe, scan depth and scan angle.
The primary result is a value for the left and right endpoint of the actual histogram.
Pressing the
[
auto
]
key causes automatic optimization of the gray scale to enhance the
contrast resolution.
When the key is pressed again, the optimization according to the histogram will be
updated and remain active.
Press the
[
auto
]
key twice to switch off the Automatic Optimization of the 2D mode image.
Remarks:
*
When the Automatic Optimization function is active, the
[
auto
]
key is brightly illuminated.
*
In CFM, PW, CW, PD, 3D/4D the optimized settings for the 2D image are kept, but the
[
auto
]
function is disabled.
5.7 Transmit Power
The
[
Transmit Power
]
flip switch governs the acoustic output of the transducer. It shall be set to the
minimum value which still allows well evaluable information. Always keep the power level and the
exposure time
A S L OW A S R EASONABLY A CHIEVABLE.
Use the
[
Power
]
flip switch to adjust the amount of acoustic output.
Remarks:
* The actual transmit power value is displayed in the monitor’s Image Information area.
*
The maximum possible acoustic output can be reduced by this control function, if certain values
of Mechanical and Thermal Indices are exceeded.
*
The adjustment of transmit power output changes also the actual output adjustment of all other
modes.
Voluson
®
730Pro - Basic User Manual
5-6
105831 Rev. 0