Chison Q9 - Page 120

Q9 Digital Color Doppler Ultrasound System
114
AoV VM
Meas. Item name
Description [Unit]
Meas. method
AoV MPG
Aortic valve mean pressure
gradient [mmHg]
Refer to “Full trace”
AoV PPG
Aortic valve maximum
pressure gradient [mmHg]
Refer to “Full trace”
LVOT Diam
Left ventricular outflow tract
diameter [mm]
Refer to “Distance Measurement in B
mode”.
HR
Heart rate [bpm]
Refer to "Heart Rate Measurement
(HR)".
SV
Stroke volume [mL]
0.785 x (LVOT Diam)
2
* abs|VTI |
CO
Cardiac output [L/min]
SV
x
HR / 1000
AV Area
AoV area [cm
2
]
SV/AoV V
TI / 100
Note:
[LVOT Diam] can only be performed in 2D mode
<<Measurement points>>
1) Measure [LVOT Vel]. Measure [HR].
.
2) Measure [LVOT Diam]
3. TV
Measurement of tricuspid valve function is performed by using Doppler images.
<<Measurement items>>
Meas. Item name Contents Meas. Method
TV VTI
Tricuspid valve VTI [m]
Refer to "Manual Trace Measurement "..
TV VM Tricuspid valve mean velocity [cm/s] Refer to " Manual Trace Measurement "..
TV VP
Tricuspid valve maximum velocity
[cm/s]
Refer to " Manual Trace Measurement ".