Chison ECO 6 - Page 95

ECO 6 Digital Color Doppler Ultrasound System
82
Meas. Menu
Submenu
Unit
Meas. Method/
Meas.
Formula
Comment
SD
Formula:SD ＝
Vs/Vd
RI
Formula:SD ＝
(Vs-Vd)/Vs
Time
s
Refer to M
time meas.
Auto Trace /
Manual Trace
/ 2PT
Vs
cm/s
Refer to M
speed meas.
Pressure(s)
mmHg
Formula:
Pressure ＝
4×Vs×Vs/1000
0
Vd
cm/s
Refer to M
speed meas.
Pressure(d)
mmHg
Formula:
Pressure ＝
4×Vd×Vd/1000
0
VMean
cm/s
Refer to M
speed meas.
Pressure(VMean)
mmHg
Formula:
Pressure ＝
4×VMean×VM
ean/10000
TVI
cm
SD
Formula:SD ＝
Vs/Vd
RI
Formula:SD ＝
(Vs-Vd)/Vs
PI
Formula:SD ＝
(Vs-Vd)/VMea
n
HR(Single wave)
bpm
StD%
Distance1
cm
Refer to B
distance meas.
Distance2
cm
Refer to B
distance meas.
StD%
%
Formula:
StD% ＝
((D1-D2)÷D1)
×100%
D1:Distance1,
D2:Distance2
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