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6. After fixing the next axis, you can complete the measurement using the [ENTER] key.
7. After measurement, the result is displayed in the measurement results area.
8. Repeat steps 1 to 6 to start the next “ellipse” measurement. Press the [DEL] key to delete all measurements.
NOTE:
Each measurement group has a limited number of measurements; if the measurement results exceed this, a
new measurement group is added automatically.
6.2.3
Trace
Measurement steps:
1. Press the [Calc] button to enter the measurement. Update the [distance] item in the menu or press the [Dist] quick
measurement button, and this displays a segment “+” icon.
2. Move the “+” icon using the cursor, press the [ENTER] key to fix the point, and the cursor can be moved to the next
position.
3. Take the cursor trace along the edge of required area; the traced line cannot be closed.
4. Now press [UPDATE] key to cancel the trace.
5. Press the [ENTER] key again at the endpoint; the start point and end point of the trace line are closed by a straight
line.
6. After measurement, the result is displayed in the measurement results area.
7. Repeat steps 1 to 5 to start the next “trace” measurement. Press the [DEL] key to delete all measurements.
NOTE:
Each measurement group has a limited number of measurements; if the measurement results exceed this, a
new measurement group is added automatically.
6.2.4
Histogram
Histogram is used to calculate the greyscale distribution of the ultrasound echo signals within a specified area. Use the
rectangle, ellipse or trace method to draw along the desired measurement area. The result is displayed in the form of a
histogram.
The histogram can only be measured on the freeze-frame image.
The measurement steps in the rectangular process: Click on the
[STILL FRAME] button to obtain a still-frame image.
Press [ENTER] in the [Histogram] menu to enter the measurement status. Click on
[ENTER] to fix
one apex of the rectangle.
Move the trackball to change the cursor position and fix the diagonal point of the rectangle.
Move the trackball to change the cursor position, fix the diagonal point of the rectangle, and confirm the measurement
area again using [ENTER]. The result is displayed in the measurement results area.
Measure the histogram using the ellipse or trace method: The procedure is the same as for the ellipse or trace method;
press [UPDATE] to switch the measurement between ellipse and trace.
The horizontal axis represents the greyscale of the image, ranging from 0 to 255.
The vertical axis represents the distribution ratio of each grey level. The value displayed on the top of the vertical axis
represents the percentage of the maximally distributed grey level within the entire greyscale distribution.
Содержание Sonido Smart
Страница 1: ...Instructions for Use SonidoSmart EN ...
Страница 64: ...49 Obstetrics markers Gynaecology markers Paediatric markers Urology markers ...
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