Advanced Cardiac Calculations
LOGIQ 500 Advanced Reference Manual
2276614–100 Rev. 0
4–83
M-Mode Analysis – Left/Right Ventricle (M-LV/RV)
RVAW
RV
IVS
LV
LVPW
PCG
ECG
RVDd
LVIDd
IVSd
IVSs
LVIDs
LVPWd
LVPWs
Figure 4–71. M-LV/RV Measurements
Calc Mnemonic
Calc Name
Input Measurements
Formula
RVDd
Right Ventricular
Dimension, Diastole
one distance
RVDd=d1[cm or mm]
IVSd
Interventricular Septal
Thickness, Diastole
one distance
IVSd=d1[cm or mm]
LVIDd
Left Ventricular Interior
Dimension, Diastole
one distance
LVIDd=d1[cm or mm]
LVPWd
Left Ventricular Posterior
Wall Thickness at Diastole
one distance
LVPWd=d1[cm or mm]
IVSs
Interventricular Septal
Thickness, Systole
one distance
IVSs=d1[cm or mm]
LVPWs
Left Ventricular Posterior
Wall Thickness at Systole
one distance
LVPWs=d1[cm or mm]
LVIDs
Left Ventricular Interior
Dimension at Systole
one distance
LVIDs=d1[cm or mm]
HR
Heart Rate (beats/minute)
one 2 beat time interval
HR[BPM]=120 [sec]/ 2
beat time [sec]
IVS/PW
Interventricular Septum/
Left Ventricle Posterior
Ratio at Diastole
two distances
(IVSd & LVPWd)
IVS/PW[%]=
IVSd/LVPWd x 100
FS
Left Ventricle Internal
Dimension Fractional
Shortening
two distances
(LVIDd & LVIDs)
FS[%]=
[(LVIDd-LVIDs)/LVIDd] x
100
%STIVS
Interventricular Shortening
two distances (IVSd &
IVSs)
%STIVS[%]=[(IVSs-IVSd)/
IVSd]x 100
%STPW
Left Ventricle Posterior
Wall Shortening
two distances
(LVPWd & LVPWs)
%STPW[%]=[(LVPWs-
LVPWd)/LVPWd] x 100
LVM
Left Ventricle
Cardiac Mass
three distances
(LVPWd, LVIDd & IVSd)
LVM[g]=1.04x[(IVSd+LVP
Wd+LVIDd)^3-LVIDd^3]–1
3.6
Table 4–19. Left/Right Ventricle (M-LV/RV)
Summary of Contents for Logiq 500
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