A6T/A6/A5 Portable Ultrasonic Diagnostic System
4701-0040-01A
3-35
3.6.1.3 Ratio measurement
Ratio measurement includes distance ratio and area ratio.
A． Distance ratio
Function: To measure and calculate the ratio of two distance measurement
values. The first measured value is the numerator, and the next measured
value is the denominator.
Measurement method:
↓
B． Area ratio
Function: To measure and calculate the ratio of two area measurement
values. The first measured value is the numerator, and the next measured
value is the denominator.Use the Ellipse method to perform the area
measurement, for the Ellipse method,see the section 3.6.1.4 for detail.
1. In B mode frozen state, press the 【Calc】key to
pop up the Meas & Calc menu, move the trackball,
use the cursor to select “Ratio”, press the 【SET】
key to go to Ratio measurement mode.
2. Measure the first distance. The measurement
method is the same as “Distance Measurement”.
3. Measure the second distance. Move the cursor to
the image window area, and the cursor is
displayed as a “+”. Use the trackball to shift the
cursor to measurement the start point, press the
【SET】key, and on the measure start point it
displays the fix mark “x”. Use the trackball to move
the cursor, between “+” and “x” there is a
connecting dotted line. In the result window it
displays measurement value and calculation result
in real-time.
4. Press the 【SET】key, the measurement ends, and
the section length and “Ratio” calculation result is
displayed in the result window.
5. Repeat steps 2 to 4 to perform the next
measurement.
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