GE Logiq 500, Расширенное справочное руководство

Страница: 141 / 474

Advanced Cardiac Calculations
LOGIQ 500 Advanced Reference Manual
2276614–100 Rev. 0
4–95

Doppler Analysis – Tricuspid Valve (D-TV) (cont’d)
Calc Mnemonic Calc Name Input Measurements Formula
PkFVI Peak Flow Velocity Integral one velocity, one time in-
terval PkFVI[cm/s or m/s]=
1.14 x PFVTV x
ET/20+0.3
MeanFV Mean Flow Velocity one velocity, one time in-
terval MeanFV[cm/s or m/s]=FVI/
t<FVI>
MaxPG Maximum Pressure
Gradient two velocities MaxPG[mmHg]=
4 x (PFV-TV^2)
MeanPG Mean Pressure
Gradient flow velocities MeanPG[mmHg]=
n
4 x
Σ
(V^2/n)
i=1
SV Stroke Volume flow velocities, one dis-
tance SV[ml]=(
π
/4) x FVI x
(TAML)^2
SI Stroke Volume Index body surface area and SV SI[ml/m^2]=
SV/BSA
CO Cardiac Output flow velocities, one dis-
tance and one time interval CO[1/min]=
SVxHR/1000
CI Cardiac Index body surface area and CO CI[ml/min/m^2]=
CO/BSA
Table 4–28. Tricuspid Valve (D-TV) (cont’d)