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Full Digital Color Doppler Ultrasonic Diagnostic Instrument (Vet) User’s Manual V1.00
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3. Measure fat thickness and loin, method is the same as the “Distance” measurement of “B Meas”;
4. The result of %Lean will be showed on the right of the shown area;
5. Repeat the step 3 to measure next time;
6. Press
『
OB
』
key to exit the measurement.
13.4 B cardiac measurements
Press key, choose
【
B Car Meas
】
item from “B Meas” menu, press
『
Set
』
key to enter B cardiac
examine mode.
B cardiac measurement menu is as the fig below:
Fig. B cardiac measurement menu
13.4.1 B mode cardiac measurement items
1. Single plane ellipse formula
Abbreviation Detailed description Algorithm or Operation
LVLd
Left Ventricular long axis diameter,
at end diastole [mm or cm]
B mode distance measurement
LVALd
Left Ventricular long axis area, at
end diastole [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
LVALs
Left Ventricular long 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] EDV[mL]=
(8/3/π)*(LVALd[mm
2
])
2
/LVLd[mm]/1000
ESV
End-systolic left ventricular
volume [mL] ESV[mL]=
(8/3/π)*(LVALs[mm
2
])
2
/LVLs[mm]/1000
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
2. Double plane ellipse formula
Abbreviation Detailed description Algorithm or Operation
LVALd
Left Ventricular long axis area, at end
diastole [mm
2
or cm
2
]
B mode “Circumference/area” ellipse
measurement