Chison ECO 3 EXPERT - PW Abdomen Measurement; PW ob Measurement

ECO 3 EXPERT Ultrasound Diagnostic System
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6.25 PW Abdomen Measurement
Refer to PW general measurement.
6.26 PW OB Measurement
Press [Calc] to enter PW measurement in PW OB mode. Or press the corresponding parameter
control key to switch the OB measurement item.
Meas.
Menu
Submenu
Unit
Meas.
Method/
Meas.
Formula
Comment
Umb A
Aorta
Descending
Aorta
Uterine
Artery(Lt)
Uterine
Artery(Rt)
Pulmonary
Artery
MCA
Duct Veno
Vs
cm/s
Refer to M
speed meas.
Pressure(Vs)
mmHg
Formula:
Pressure ＝
4×Vs×Vs/100
00
Vd
cm/s
Refer to M
speed meas.
Pressure(Vd)
mmHg
Formula:
Pressure ＝
4×Vd×Vd/100
00
VMean
cm/s
Refer to M
speed meas.
Pressure(VMea
n)
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
Time
s
Refer to M
time meas.
FHR(Single
wave)
bpm