GE Logiq 500, Расширенное справочное руководство

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Advanced Cardiac Calculations
LOGIQ 500 Advanced Reference Manual
2276614–100 Rev. 0
4–71

LV Calculation Formulas (LV BP-DISC Method) (cont’d)
Calc Mnemonic Calc Name Input Measurements Formula
EdV End Diastole Volume one distance and two
areas (by ellipse, trace or
circle) EdV[ml]= (*1)
20
( ) * ((LVLd/20) a
di
b
di)
i=1
EsV End Systole Volume one distance and two
areas (by ellipse, trace or
circle) EsV[ml]= (*2)
20
( ) * ((LVLs/20) a
si
b
si)
i=1
SV Stroke Volume two distances and two
areas (by ellipse, trace or
circle) SV[ml]=EdV–EsV
EF Ejection Fraction two distances and two
areas (by ellipse, trace or
circle) EF=SV/EdVx100
CO Cardiac Output two distances and two
areas (by ellipse, trace or
circle) 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
(*1) where a
di
is the i
th
disc diameter of LVA2d, bdi is the i
th
disc diameter of LVA4d,
LVLd is the max (LVL2d, LVL4d).
(*2) where a
si
is the i
th
disc diameter of LVA2s, bsi is the i
th
disc diameter of LVA4s,
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)