Chison ECO 2 - Page 91

ECO 2 Ultrasound Diagnostic System
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Meas. Menu
Submenu
Unit
Meas. Method/
Meas. Formula
SD
Formula:SD＝Vs/Vd
RI
Formula:SD＝(Vs-Vd)/Vs
Time
S
Refer to M time meas.
HR
Single wave
Bpm
Refer to M HR meas.
Auto
Trace/Manual
Trace
Vs
cm/s
Refer to M speed meas.
Pressure(s)
mmHg
Formula:
Pressure＝4×Vs×Vs/10000
Vd
cm/s
Refer to M speed meas.
Pressure(d)
mmHg
Formula:
Pressure＝4×Vd×Vd/10000
VMean
cm/s
Refer to M speed meas.
Pressure(VMea
n)
mmHg
Formula:
Pressure＝4×VMean×VMean/10000
TVI
Cm
SD
Formula:SD＝Vs/Vd
RI
Formula:SD＝(Vs-Vd)/Vs
PI
Formula:SD＝(Vs-Vd)/VMean
HR(Single
wave)
Bpm
6.24 PW Genearl Measurement
Press [Calc] to enter PW measurement in PW mode. Press the corresponding parameter control
key to switch the general measurement item.
Meas. Menu
Submenu
Unit
Meas. Method/
Meas. Formula
Comment
Velocity
cm/s
Refer to M speed meas.
Distance
Cm
Refer to B distance meas.
Peak
Vs
cm/s
Refer to M speed meas.
Pressure(s)
mmHg
Formula:
Pressure＝4×Vs×Vs/10000
Vd
cm/s
Refer to M speed meas.
Pressure(d)
mmHg
Formula:
Pressure＝4×Vd×Vd/10000
SD
Formula:SD＝Vs/Vd