Chison Q9 - Bullet Volume; Calculation Formula for Volume

Q9 Digital Color Doppler Ultrasound System
84
r
4i
:Radius of i-th ellipse(4CH)
LVLd: Length of the left-ventricular long axis at end diastole for 2CH or 4CH, whichever is longer.
LVLs: Length of the left-ventricular long axis at end systole for 2CH or 4CH, whichever is longer.
(3) EDV=π
Errore. L'origine riferimento non è stata trovata.2i
2
(4) ESV=π
Errore. L'origine riferimento non è stata trovata.2i
2
ri: Radius of the i-th circle(2CH)
LVLd: Left ventricular long-axis length at end diastole
LVLs: Left ventricular long-axis length at end diastole
(5) EDV=π
Errore. L'origine riferimento non è stata trovata.4i
2
(6) ESV=π
Errore. L'origine riferimento non è stata trovata.4i
2
ri: Radius of the i-th circle(4CH)
LVLd: Left ventricular long-axis length at end diastole
LVLs: Left ventricular long-axis length at end diastole
<<Items to be measured>>
Meas. item name
Descri
ption [Unit]
Meas. method
EDV（A2C）
End
-
diastolic volume
(A2C )[ml]
Measurement
(
trace)
ESV（A2C）
End
-
systolic volume
(A2C) [ml]
Measurement
(
trace)
EDV（A4C）
End
-
diastolic volume
(A4C) [ml]
Measurement
(
trace)
ESV（A4C）
End
-
systolic volume
(A4C) [ml]
M
easurement
(
trace)
<< Items to be calculated >>
Calc. item name
Description [Unit]
Calc. formula
SV（SimpBP）
Stroke Volume[mL]
SV=EDV
–
ESV
EF（SimpBP）
ejection fraction
EF=SV/EDV
3. Bullet volume
This method calculate the left ventricular volume using the 2D-mode long-axis image and the short-axis image at the
level of the mitral valve.
Calculation formula for volume
EDV=Errore. L'origine riferimento non è stata trovata.
ESV=Errore. L'origine riferimento non è stata trovata.
<<Items to be measured>>
Meas. item
name
Description [Unit]
Meas. method
LVAMd
Left ventricula
r short
-
axis area at the level of the mitral
valve at end diastole.
Refer to “Area
-
trace
measurement”
LVLd
Left ventricular long
-
axis length at end diastole.
Refer to "Distance
Measurement
(Distance)".
LVAMs
Left ventricular short
-
axis area at the level
of the mitral
valve at end systole.
Refer to “Area
-
trace
measurement”
LVLs
Left ventricular long
-
axis length at end systole.
Refer to "Distance
Measurement