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Chapter 8 Measurements and Calculations
Tips!
Taking measurements via Auto Calc
This product can measure specific items set up in advance by using Auto Calc.
Measured items are as follows. For instructions on setting up the measurement items, please refer
to ‘Measurement’ in ‘Chapter 3. Utilities’.
X
Peak Systolic Velocity (PS)
X
End Diastolic Velocity (ED)
X
Minimum Diastole Velocity (MD)
X
Pulsatility Index (PI)
X
Resistive Index (RI)
X
Systole/Diastole Ratio (PS/ED)
X
Diastole/Systole Ratio (ED/PS)
X
HR
X
Time Averaged Peak Velocity (TAMAX)
X
Time Averaged Mean Velocity (TAMEAN)
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 Average Mean Velocity) value is measured
automatically.
Vesl. Area (Vessel Area)
Measure the area of a blood vessel to calculate TAMEAN and Volume Flow.
Vesl. Dist. (Vessel Distance)
Measure the width of a blood vessel to calculate TAMEAN and Volume Flow.
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