ECO 2 Ultrasound Diagnostic System
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Operator Control Features:
The user should be aware that certain operator controls may affect the acoustic output. It is
recommended to use the default (or lowest) output power setting and compensate using Gain
control to acquire an image. Other than the output power setting in the soft-menu, which has the
most direct impact on the power; the PRF, image sector size, frame rate, depth, and focal position
also slightly affect the output power. The default setting is normally around 70% of the allowable
power depending on the exam application mode.
Controls Affecting Acoustic Output
The potential for producing mechanical bioeffects (MI) or thermal bioeffects (TI) can be influenced
by certain controls.
Direct: The Acoustic Output control has the most significant effect on Acoustic Output.
Indirect: Indirect effects may occur when adjusting controls. Controls that can influence MI and TI
are detailed under the bioeffect portion of each control in the Optimizing the Image chapter.
Always observe the Acoustic Output display for possible effects.
Best practices while scanning
HINTS: Raise the Acoustic Output only after attempting image optimization with controls that have
no effect on Acoustic Output, such as Gain and STC.
WARNING: Be sure to have read and understood control explanations for each mode
used before attempting to adjust the Acoustic Output control or any control that can affect Acoustic
Output.
Use the minimum necessary acoustic output to get the best diagnostic image or measurement
during an examination. Begin the exam with the probe that provides an optimum focal depth and
penetration.
Acoustic Output Default Levels
In order to assure that an exam does not start at a high output level, the system initiates scanning
at a reduced default output level. This reduced level is preset programmable and depends upon
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