Full Digital Ultrasonic Diagnostic Instruments
User’s Manual V1.00
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of
〖
% Stenosis
〗
of
【
B Meas
】
, press
『
Set
』
key;
3. Measure the distance D1 at the non-stenosis position, the method is the same as “Distance”
measurement;
4. Measure the distance D2 at the stenosis position, the method is the same as “Distance”
measurement. After finishing the measurement, the calculated value DSR will be showed on
the right of the shown area;
5. Repeat the steps 3~4 to measure distance stenosis ratio for next time;
6. Press
『
Measure
』
key to exit the measurement.
10.8.2 Area stenosis ratio measurement
1. Choose a valuable image in B, B/B or 4B mode;
2. Press
『
Measure
』
key, the cursor will show “+”, move the cursor to the submenu
〖
Area
〗
of
〖
% Stenosis
〗
of
【
B Meas
】
then press
『
Set
』
key;
3. Measure the area A1 at the non-stenosis position, the method is the same as “Cir/area” of the
“Ellipse”;
4. Measure the area A2 at the stenosis position and the method is the same as “Cir/area” of the
“Ellipse”. After finishing the measurement, the calculated value ASR will be showed on the
right of the shown area;
5. Repeat the steps 3~4 to measure area stenosis ratio for next time;
6. Press
『
Measure
』
key to exit the measurement.