P3V Veterinary Digital Ultrasonic Diagnostic Imaging System User Manual
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EF
Ejection fraction (B mode)
EF (No unit)= SV (mL)/ EDV (mL) x 100%
SI
Stroke Index
SI (No unit)= SV (mL)/ BSA (m
2
)
CI
Cardiac Index
CI (No unit)= CO (L/min)/ BSA (m
2
)
BSA
Body Surface Area
Calculate by to the selected formula (m
2
)
Table 9-9 Measurement and Calculation Items with Modified SIMPSON Formula
*1
1000
/
)
(
)
(
)
(
2
)
(
4
9
/
)
(
)
(
2
2
2
2
mm
LVAPd
mm
LVAMd
mm
LVAPd
mm
LVAMd
mm
LVLd
mL
EDV
1000
/
)
(
)
(
)
(
2
)
(
4
9
/
)
(
)
(
2
2
2
2
mm
LVAPs
mm
LVAMs
mm
LVAPs
mm
LVAMs
mm
LVLs
mL
ESV
5. Other measurement and calculation items:
Label Description
Method
LVET
Left Ventricular Ejection Time
Time (ms)
FS
Fractional Shortening
FS (No unit)={ LVIDd (mm)- LVIDs (mm)}/
LVIDd (mm) x 100%
MVCF
Mean Velocity Circumferential Fiber
Shortening
MVCF (No unit)= { LVIDd (mm)- LVIDs
(mm)}/ {LVIDd (mm) x ET (ms)/1000}
Table 9-10 Other Measurement and Calculation Items
9.2.1. LV
LV measurement is as below.
Single plane ellipse
Measurement items:
LVLs, LVALs, LVLd, and LVALd.
To measure LV:
1.
In the B-cardiac measurement menu, roll the trackball to highlight
LV
. Then select
S-P
Ellipse
and press
Set
.
2.
During end systolic, measure LVLs and LVALs respectively. The system calculates and
displays ESV value.
3.
During end diastolic, measure LVLd and LVALd respectively, the method of former one is
similar to the generic B mode distance measurement method and the second one, the generic
B mode ellipse area measurement method. The system calculates and displays EDV, SV, and
EF.
Dual plane ellipse, Bullet, and Modified SIMPSON
