
374 VisualSonics Vevo 2100 Imaging System Operator Manual Rev 1.1
Appendix A: Measurement package protocols
LV Mass Cor (M-Mode) LV mass corrected mg LV Mass (M-Mode) * 0.8
LV Mass Cor (B-Mode) LV mass corrected mg LV Mass (B-Mode)* 0.8
LV Mass AW (M-Mode) LV Mass AW Uncorrected mg 1.053 * ((LVID;d + LVPW;d + LVAW;d)3 – LVID;d3)
LV Mass AW Cor (M-Mode) LV Mass AW corrected mg LV Mass AW (M-Mode) * 0.8
SAX protocol
Measurement definitions
Label Description Units Generic type Mode Chain
Trace LV trace - short axis area
mm
2
MLVArea B-Mode
A LV trace area
mm
2
MLVArea B-Mode
A;s Systolic area
mm
2
MLVArea B-Mode
A;d Diastolic area
mm
2
MLVArea B-Mode
FAC Fractional area change % MLVArea B-Mode
IVS;d Inter ventricular septum (diastole) mm Depth M-Mode LVID;d
IVS;d Inter ventricular septum (diastole) mm Length B-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 mm Depth M-Mode LVID;s
IVS;s Inter ventricular septum mm Length B-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
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)
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