EDAN U60 - Page 146

U60 Diagnostic Ultrasound System User Manual Cardiac Measurements and Calculations
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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:
Oriental: BSA=Weight
0.425
*Height
0.725
*73.58/10000
Occidental: BSA=Weight
0.425
*Height
0.725
*71.84/10000
Height: height cm.
Weight: 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
)