
Full Digital Color Doppler Ultrasonic Diagnostic Instrument (Vet) User’s Manual V1.00
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QMV
Mitral valve volume
QMV[mL]=4*DEV[cm/s]*DCT[s]
LAD
Left Atrium inside diameter
M mode distance measurement
AOD
Aorta inside diameter
M mode distance measurement
LAD/AOD
Inside diameter ratio of left atrium to aorta LAD/AOD[no unit]= LAD [mm]/AOD [mm]
MAVO1
Aorta valve begin opening diameter
M mode distance measurement
MAVO2
Aorta valve end opening diameter
M mode distance measurement
AA
Aorta posterior wall amplitude [mm or cm] M mode distance measurement
AVSV
Aorta Valve Volume
AVSV[mL]=(MAVO1[cm]+MAVO2[cm])*ET
[s]*50+AA[cm]
LVMW
Left Ventricle Muscle Weight [g]
LVMW[g]=1.04*[(IVSTd[cm]+LVIDd[cm]+
LVPWd[cm])
3
- LVIDd
3
[cm
3
]]-13.6
LVMWI
Left Ventricle Muscle Weight index
LVMWI[no unit]= LVMW[g]/BSA[m
2
]
4. Calculation formula
Abbreviation Detailed description
Formula
EDV
End-diastolic left ventricular volume
[mL]
EDV[mL]=(LVIDd [mm])
3
/1000 (CUBE formula)
ESV
End-systolic left ventricular volume
[mL]
ESV[mL]= (LVIDs [mm])
3
/1000 (CUBE formula)
SV
Stroke Volume [mL]
SV[mL]= EDV[mL]- ESV[mL]
CO
Cardiac Output [L/min]
CO[L/min]= SV[mL]* HR[bpm]/1000
EF
Ejection Fraction
EF[No unit]= SV[mL]/ EDV[mL]
FS
Fractional Shortening
FS[No unit]=(LVIDd[mm]- LVIDs[mm])/
LVIDd[mm]
SI
Stroke Volume Index
SI= SV[mL]/ BSA[m
2
]
CI
Cardiac Index
CI[No unit]= CO[L/min]/ BSA[m
2
]
MVCF
Mean velocity of circumferential fiber
shortening [circ/s]
MVCF=(LVIDd[mm]-LVIDs[mm])/( LVIDd[mm]
*ET[ms]/1000)
BSA
Body Surface Area [m
2
]
Two formulas to choose
Oriental: BSA=WT
0.425
*HT
0.725
*73.58/10000
Occidental: BSA= WT
0.425
*HT
0.725
*71.84/10000
LVMW
Left Ventricle Muscle Weight [g]
LVMW[g]=1.04*[(IVSTd[cm]+LVIDd[cm]+LVP
Wd[cm])
3
- LVIDd
3
[cm
3
]]-13.6
LVMWI
Left Ventricle Muscle Weight index
LVMWI[No unit]= LVMW[g]/BSA[m
2
]
CA/CE
Ratio of between A peak and E peak
CA/CE[No unit]= CA[mm]/CE[mm]
LAD/AOD
Inside diameter ratio of left atrium to
aorta
LAD/AOD[No unit]= LAD [mm]/ AOD [mm]
AVSV
Aorta Valve Volume [mL]
AVSV[ml]=(MAVO1[cm]+MAVO2[cm])*ET[s]*
50+AA[cm]
QMV
Mitral valve volume [mL]
QMV[ml]=4*DEV[cm/s]*DCT[s]
14.2.2 Left ventricle function measurement
The LV function measurement in M mode is based on EDV and ESV that be calculated by the short
axis diameter at the LV diastole and systole.
LV function measurement items include LVIDd and LVIDs and it can calculate the SV, FS, EF, CO,
MVCF, SI and CI.
Two kinds of LV Function formulas in M mode: TEICHHOLZ and CUBE.