P3V Veterinary Digital Ultrasonic Diagnostic Imaging System User Manual
- 101
-
1. CUBE formula:
NOTE:
d: end diastolic; s: end systolic
Table 9-1 Measurement and Calculation Items with CUBE formula
The formulas of BSA calculation:
Canine: BSA=0.112*WT
0.67
;
Feline: BSA=0.098*WT
0.67
;
Equine: BSA=1.09+0.008*WT;
Bovine: BSA=0.14*WT
0.57
;
Ovine: BSA=0.085*WT
0.67
;
Others: BSA=0.112*WT
0.67
;
HT: height, cm;
WT: weight, kg;
BSA: Body Surface Area m
2
.
Label
Description
Method
LVIDd
Left Ventricle Internal Diameter
Distance (mm)
LVIDs
Left Ventricle Internal Diameter
ET
Ejection Time
Time (ms or s)
HR
Heart Rate
M mode heart rate measurement or key in (bpm)
EDV
End Diastolic Volume
EDV (mL) = LVIDd
3
(mm
3
)/1000
ESV
End Systolic Volume
ESV (mL) = LVIDs
3
(mm
3
)/1000
SV
Stroke volume
SV (mL) = EDV (mL)-ESV (mL)
CO
Cardiac Output
CO (L/min) = SV (mL) x HR (bpm)/1000
EF
Ejection fraction (M mode)
EF (No unit) = SV (mL)/ EDV (mL) x 100%
FS
Fractional Shortening
FS (No unit) = [{ LVIDd (mm)- LVIDs (mm)}/ LVIDd
(mm) ]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
)
MVCF
Mean Velocity Circumferential
Fiber Shortening
MVCF (No unit) = { LVIDd (mm)- LVIDs (mm)}/ {LVIDd
(mm) x ET (ms)/1000}
BSA
Body Surface Area
Calculate by the selected formula (m
2
)
