GE LOGIQ 500 Advanced Reference Manual page 117

LV Calculation Formulas (LV BP-DISC Method) (cont'd)
Calc Mnemonic
EdV End Diastole Volume
EsV End Systole Volume
SV Stroke Volume
EF Ejection Fraction
CO Cardiac Output
SI Stroke Volume Index
CI Cardiac Index
(*1) where a is the i
di
LVLd is the max (LVL2d, LVL4d).
(*2) where a is the i
si
LVLs is the max (LVL2s, LVL4s).
Reference: Journal of American Society of Echocardiolography, Vol. 2 Nov 5, 1989.
Table 4–6. LV BP-DISC Method Formulas (cont'd)
LOGIQ 500 Advanced Reference Manual
2276614–100 Rev. 0
Calc Name
one distance and two
areas (by ellipse, trace or
circle)
one distance and two
areas (by ellipse, trace or
circle)
two distances and two
areas (by ellipse, trace or
circle)
two distances and two
areas (by ellipse, trace or
circle)
two distances and two
areas (by ellipse, trace or
circle) and one 2 beat time
interval
body surface area and SV
body surface area and CO
th
disc diameter of LVA2d, bdi is the i
th
disc diameter of LVA2s, bsi is the i
Advanced Cardiac Calculations
Input Measurements
th
disc diameter of LVA4d,
th
disc diameter of LVA4s,
Formula
EdV[ml]= (*1)
20
(p/4) * ((LVLd/20) a b
di di)
i=1
EsV[ml]= (*2)
20
(p/4) * ((LVLs/20) a b
si si)
i=1
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
4–71