
Rev 1.1 VisualSonics Vevo 2100 Imaging System Operator Manual 385
Appendix A: Measurement package protocols
Label Description Units Generic type Mode
TV VTI Tricuspid velocity time integral cm VTI PW Doppler
Mean Vel Tricuspid mean velocity mm/s VTI PW Doppler
Mean Grad Tricuspid mean pressure gradient mmHg VTI PW Doppler
Peak Vel Tricuspid peak velocity mm/s VTI PW Doppler
Peak Grad Peak pressure gradient mmHg VTI PW Doppler
Cycles Tricuspid cycles (none) VTI PW Doppler
TV E Tricuspid valve E wave velocity mm/s Vertical Velocity PW Doppler
TV A Tricuspid valve A wave velocity mm/s Vertical Velocity PW Doppler
TV Decel Tricuspid E wave deceleration time
mm/s
2
Acceleration PW Doppler
T Tricuspid E wave deceleration time ms Time PW Doppler
IVRTr Right ventricle relaxation time ms Time PW Doppler
IVCTr Right ventricle contraction time ms Time PW Doppler
TV ET Tricuspid valve ejection time ms Time PW Doppler
NFTr Right ventricle non-filling time ms Time PW Doppler
PET Pulmonary ejection Time ms Time PW Doppler
Calculation definitions
Name Description Units Formula
TV E/A Ratio of tricuspid valve E to A N/A TV E/ TV A
RV MPI RV myocardial performance index N/A (NFTr - PET) / PET
Embryology Measurement Package
This section provides the measurements and calculations information for the protocols in the
Embryology measurement package.
Uterine Horn protocol
Measurement definitions
Label Description Units Generic type Mode
UA Vel Umbilical artery velocity mm/ms Velocity PW Doppler
UA Diam Umbilical artery diameter mm Linear B-Mode
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