Advanced Cardiac Calculations
LOGIQ 500 Advanced Reference Manual
2276614–100 Rev. 0
4–75
LV Calculation Formulas (Gibson Method) (cont’d)
Calc Mnemonic
Calc Name
Input Measurements
Formula
EdV
End Diastole Volume
three distances
EdV[ml]=
π
/6 x (LVIDd)^2 x
(0.98 x LVIDd + 0.59)
EsV
End Systole Volume
three distances
EsV[ml]=
π
/6 x (LVIDs)^2 x
(1.14 x LVIDs + 4.18)
FS
Fractional Shortening
two distances
FS=(1–LVIDs/LVIDd)x100
SV
Stroke Volume
two distances
SV[ml]=EdV–EsV
EF
Ejection Fraction
two distances
EF=SV/EdVx100
CO
Cardiac Output
two distances and one 2
beat time interval
CO[1/min]=SVxHR/1000
SI
Stroke Volume Index
body surface area and SV
SI[ml/m^2]=SV/BSA
CI
Cardiac Index
body surface area and CO
CI[ml/min/m^2]=CO/BSA
MVCF
Mean Vcf
two distances & one time
interval
MVCF[circ/s]=
(LVIDd-LVIDs)/
(LVIDd x ET)
LVM
Left Ventricle
Cardiac Mass
three distances
LVM[g]=1.04*[(IVSd+
LVPWd+LVIDd)^3–
LVIDd^3]–13.6
Table 4–11. Gibson Method Calculation Formulas
Summary of Contents for Logiq 500
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