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Chapter 8 Measurements and Calculations
Tips!
Taking Measurements via Auto Calc.
You can use Auto Calc to take measurements on predetermined item(s). Measurement items are as
follows. For information on setting measurement item(s), please refer to ‘Measurement’ in ‘Chapter
3. Utilities’.
X
Peak Systolic Velocity (PS)
X
End Diastolic Velocity (ED)
X
Min Diastole Velocity (MD)
X
Time Averaged Peak Velocity (TAMAX)
X
Time Averaged Mean Velocity (TAMEAN)
X
Resistive Index (RI)
X
Pulsatility Index (PI)
X
Systole/Diastole Ratio (PS/ED)
X
Diastole/Systole Ratio (ED/PS)
X
Heart Rate (HR)
X
Max Pressure Gradient (PGmax)
X
Mean Pressure Gradient (PGmean)
X
Velocity Time Integral (VTI)
X
Peak A (Peak A)
Volume Flow Measurement
Select Volume Flow in the measurement menu.
Volume Flow can be calculated by measuring an area or distance. For information on measuring
distance or area, refer to ‘Basic Measurement’. TAMEAN (Time Avg. Mean Velocity) value is measured
automatically.
Vesl. Area (Vessel Area)
Measure the area of a blood vessel to calculate TAMEAN and Volume Flow.
X
Vesl. Dist. (Vessel Distance)
Measure the width of a blood vessel to calculate TAMEAN and Volume Flow.
X
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