Chapter 1 - About the Terason Ultrasound System The Terason Console
Terason t3000 / Echo Ultrasound System User Guide 36
ROI/Ultrasound Cursor Select Button – The button just above the trackball
moves the cursor to the ROI or the ultrasound cursor, and selects it. In PWD mode, it
selects the sample volume depth marker. When these features are selected, moving the
trackball manipulates them.
Save Loop Button –The button below and to the right of the Live/Freeze button
saves a loop to a file. This button is disabled during live imaging
Save Image Button –The button to the right of the Save Loop button saves a frozen
image to a file. This button is disabled during live imaging.
Text Button –The button just above the Save Image button toggles the text entry
functions on and off.
Update Button – The button to the left of the Live/Freeze button toggles the update
function on and off. See Updating the Displays on page 117.
Right Control Group
Gain Control Knob – The knob near the bottom right of the console controls gain. If the
selected scan mode has different gain functions, pushing the knob down toggles it to
control other available gain functions. A legend next to the gain knob icon at the
bottom right of the imaging display says which gain is currently controlled by the Gain
knob.
Example: in Color mode, the Gain knob normally controls color gain, and the onscreen
legend reads
Color Gain. Pushing the button down changes the control to 2D gain, and the
legend reads
BMode Gain.
When you press the Gain knob down for two seconds during live imaging, all settings
revert to the presets.
When the scan is frozen in Doppler modes, the Gain knob normally scrolls the Time-
Series loop, and the onscreen legend reads
Time Scroll. Pushing the knob down changes it
to scroll the 2D loop, and the onscreen legend reads
Frame Scroll.
Sliders – Eight sliders at the right end of the console control time gain compensation
(TGC) at various scan depths. See Adjusting Time Gain Compensation on page 96.
When you turn the system on, select an exam, or press the Gain knob to reset, the presets
are applied, independent of the slider positions. If you have a slider all the way to the right
or left when the presets are applied, you will only be able to adjust that TGC value in one
direction.
Patient Size Buttons – Two buttons just to the left of the TGC sliders select different
sets of presets, depending on the scan mode and exam type.
Focus Depth Buttons – Two buttons just to the left of the Frequency buttons set the
focus depth.
Scan Depth Buttons – Two buttons just to the left of the Focus Depth buttons set the
scan depth.
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