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Full Digital Color Doppler Ultrasonic Diagnostic Instrument (Vet) User’s Manual V1.00
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LVLd
Left Ventricular long axis diameter, at end
diastole [mm or cm]
B mode distance measurement
LVAPd
Papillary muscles horizontal left ventricular
short axis area, at end diastole [mm2 or cm2] B mode “Circumference/area” ellipse
measurement
LVAMs
Mitral valve horizontal left ventricular short
axis area, at end systole [mm
2
or cm
2
]
B mode “Circumference/area” ellipse
measurement
LVLs
Left Ventricular long axis diameter, at end
systole [mm or cm]
B mode distance measurement
LVAPs
Papillary muscles horizontal left ventricular
short axis area, at end systole [mm
2
or cm
2
]
B mode “Circumference/area” ellipse
measurement
HR Heart Rate [bpm] Key in
EDV End-diastolic left ventricular volume [mL] *1
ESV End-systolic left ventricular volume [mL] *2
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]
SI Stroke Volume Index SI=SV[mL]/BSA[m
2
]
CI Cardiac Index CI[No unit]=CO[L/min]/ BSA[m
2
]
BSA Body Surface Area [m
2
] Calculation referring to the formula
*1
LVLd[mm]
9
*
(
4*LVAMd[mm
2
]+2*LVAPd[mm
2
]+
EDV[mL]=
√
LVAMd[mm
2
]+LVAPd[mm
2
] )/1000
*2
ESV[mL]=
)/ 1000
LVLs[mm]
9
*
(
4*LVAMs[ mm
2
]+2*LVAPs[mm
2
]+
√
LVAMs[mm
2
]+LVAPs[ mm
2
]
Body surface area formulas:
EAST Formula: BSA = WT
0.425
*HT
0.725
*73.58/10000
WEST Formula: BSA = WT
0.425
*HT
0.725
*71.84/10000
HT: Height cm
WT: Weight kg
BSA: Body surface area m
2
5. Other measurement items of B mode
Abbreviation Detailed description Algorithm or Operation
RV
Right ventricular internal diameter, at end
diastole
B mode distance measurement
PA Main pulmonary artery internal diameter B mode distance measurement
HR Heart Rate Key in
Height Height
Key in
Weight Weight
Key in
ET Ejection Time [ms] Key in
MVCF
Mean velocity of circumferential fiber
shortening MVCF=(LVIDd[mm]-LVIDs[mm])/(LVIDd[
mm]*ET[ms]/1000)
FS Fractional Shortening
FS[No unit]=(LVIDd[mm]-LVIDs[mm])/
LVIDd[mm]