Specifications

Rev 1.1 VisualSonics Vevo 2100 Imaging System Operator Manual 373
Appendix A: Measurement package protocols
EF Ejection fraction % MLVArea B-Mode
FS Fractional shortening % MLVArea B-Mode
CO Cardiac output ml/min MLVArea B-Mode
V LV trace – long axis volume µL MLVArea B-Mode
RVID;d Right ventricular internal diameter (diastole) mm Depth M-Mode IVS;d
IVS;d Inter ventricular septum (diastole) mm Depth M-Mode LVID;d
IVS;d Inter ventricular septum (diastole) mm Length B-Mode LVID;d
LVAW;d Left ventricular anterior wall (diastole) mm Depth M-Mode LVID;d
LVID;d Left ventricular internal diameter (diastole) mm Depth M-Mode LVPW;d
LVID;d Left ventricular internal diameter (diastole mm Length B-Mode LVPW;d
LVPW;d Left ventricular posterior wall (diastole) mm Depth M-Mode
LVPW;d Left ventricular posterior wall (diastole) mm Length B-Mode
IVS;s Inter ventricular septum (systole) mm Depth M-Mode LVID;s
IVS;s Inter ventricular septum (systole) mm Length B-Mode LVID;s
LVAW;s Left ventricular anterior wall (systole) mm Depth M-Mode LVID;s
LVID;s Left ventricular internal diameter (systole) mm Depth M-Mode LVPW;s
LVID;s Left ventricular internal diameter (systole) mm Length B-Mode LVPW;s
LVPW;s Left ventricular posterior wall (systole) mm Depth M-Mode
LVPW;s Left ventricular posterior wall (systole) mm Length B-Mode
LVET Left ventricular ejection time (systole) ms Time M-Mode
LA Left atrium mm Depth M-Mode
LA Left atrium mm Length B-Mode
Ao Root Aortic root mm Depth M-Mode
Ao Sinus Aortic sinus mm Length B-Mode
Calculation definitions
Name Description Units Formula
LV Vol;d (M-Mode) Left ventricle volume diastole µL
((7.0 / (2.4 + LVID;d)) * LVID;d
3
)
LV Vol;d (B-Mode) Left ventricle volume diastole µL
((7.0 / (2.4 + LVID;d)) * LVID;d
3
)
LV Vol;s (M-Mode) Left ventricle volume systole µL
((7.0 / (2.4 + LVID;s)) * LVID;s
3
)
LV Vol;s (B-Mode) Left ventricle volume systole µl
((7.0 / (2.4 + LVID;s)) * LVID;s
3
)
%EF (M-Mode) LV ejection fraction % 100 * ((LV Vol;d – LV Vol;s) / LV Vol;d)
%EF (B-Mode) LV ejection fraction % 100 * ((LV Vol;d – LV Vol;s) / LV Vol;d)
%FS (M-Mode) LV fractional shortening % 100 * ((LVID;d – LVID;s) / LVID;d)
%FS (B-Mode) LV fractional shortening % 100 * ((LVID;d – LVID;s) / LVID;d)
LV Mass (M-Mode) LV mass uncorrected mg
1.053 * ((LVID;d + LVPW;d + IVS;d)
3
– LVID;d
3
)
LV Mass (B-Mode) LV mass uncorrected mg
1.053 * ((LVID;d + LVPW;d + IVS;d)
3
– LVID;d
3
)