GE LOGIQ 500 Advanced Reference Manual page 121

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