Acclarix LX9 Series Diagnostic Ultrasound System User Manual
1. In Cardiac exams, invoke the generic measurement function on a Doppler strip.
2. Select Tei Index.
3. Measure COT (Mitral Valve Close-Open Duration ) by caliper pairs.
4. Measure ET (Ventricular Ejection Time) by caliper pairs.
5. The system calculates the Tei index automatically. The illustration is shown below:
8.1.3.8. Volume Flow
Volume Flow can be measured in Strip Doppler mode by the following methods:
Manual Method:
1. In Vascular exams, freeze the strip and invoke the generic measurement function.
2. Select Vessel-> Vol. Flow.
If vessel diameter is measured on B image, the system will trace the Doppler strip
automatically. Press <Set> key to complete the measurement.
If no vessel diameter is measured on B image, the system will first activate the
measurement function on B image. Measure the vessel diameter by a 2-point distance
method, and then the system traces the Doppler strip automatically. Press <Set> key to
complete the measurement.
3. All the measured results are displayed in the measurement result window.
NOTE:In Strip Doppler mode, the B-mode generic measurement will be invoked when the caliper is
placed on the B-mode reference image.
eVol.Flow Method:
1. In Vascular exams, freeze the strip and invoke the generic measurement function.
2. Select Vessel-> eVol.Flow.
3. The system measures the volume flow and displays the measured results in the measurement
result window.
The system also supports real-time volume flow measurement, that is, the system will display the
real-time volume flow results based on the refreshing spectrum signal.
To measure the real-time volume flow:
1. Scan a vascular image under vascular exams. Press the <PW> key to activate pre-PW mode,
and the sample line will be displayed on the screen.
2. Move the sample gate to the blood vessel and press Live VF button on the touch screen.
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