Specifications

376 VisualSonics Vevo 2100 Imaging System Operator Manual Rev 1.1
Appendix A: Measurement package protocols
Calculation definitions
Name Description Units Formula
Endocardial Volume; d
Endocardial volume
in diastole
µl
Endocardial Volume; s
Endocardial volume
in systole
µl
Endocardial Stroke
Volume
Stroke volume µl Endocardial Volume; d - Endocardial Volume; s
Endocardial %EF
Percent ejection
fraction
%
Endocardial %FAC
Percent fractional
area change
%
Endocardial Area
Change
Area change
mm
2
Endocardial Fractional
Shortening
Fractional
shortening
% (Endocardial Major; d - Endocardial Major; s) / Endocardial Major; d
Endocardial CO Cardiac output ml/min
Note: Heart rate is additional parameter for Endocardial Major; d
measurement
a; d
Average LV
epicardial radius in
diastole
mm
b; d
Average LV
endocardial radius
in diastole
mm
T; d
Average wall
thickness
mm a - b
LV Mass; d LV Mass mg
ARCH protocol
Measurement definitions