Mindray DC-80A, Руководство оператора

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Image Optimization 5-33
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Delete an ROI
Press the <Clear> key to clear the last ROI. Touch [Delete All] on the touch screen to clear all ROIs.
The corresponding traces for the deleted ROIs are erased from the plot.
Press <Clear> to delete the last added ellipse ROI.
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Standard Height/Standard Width/Standard Angle
Use the touch screen selections [Std. Height], [Std. Width], [Std. Angle] to adjust the height, width
and tilt angle of the standard ROI for the current or following ROIs.
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Strain Distance
Sampling distance for calculating deformation. Use the knob under [Strain Dist.] on the touch
screen to select the corresponding value for the Strain – Time curve or Strain Rate – Time curve.
ROI tracking
Touch [ROI Tracking] to be On to start tracking.
This function provides a motion-compensated ROI as precise time-intensity information can be acquired
using active tracking.
Tip:

Elliptical ROIs can be positioned in any way that keeps their center within the image
boundaries. If part of the ROI is outside the image boundary, only data from within the image
boundary is used for calculating the mean intensity value.
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When the user repositions an ROI, the old trace data is erased from the plot and the trace data
for the new position re-plotted.
X Scale
Rotate the knob under [X Scale] on the touch screen to choose a different value. The X scale display
will be changed. This function can be used to track detailed tissue information.
Smooth
Use this function to smooth the curve. The system provides 7 levels of smooth effect.
Export/Save Trace Data
1. Click [Export] on the touch screen.
2. Select the drive and enter the file name in the displayed window.
Select [OK] to save the data and return to the QA Analysis screen.
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All displayed ROI traces are saved in the exported file.
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The parameters are included in the trace file if the user has fixed a ROI.
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After exporting, a .BMP format image is displayed in the thumbnail area in the lower part of the
screen.
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Only data from the user-selected image range is included in the exported trace file.
5.10 3D/4D
NOTE: 3D/4D imaging is largely environment-dependent, so the images obtained are provided for
reference only, not for confirming diagnoses.