Specifications

384 VisualSonics Vevo 2100 Imaging System Operator Manual Rev 1.1
Appendix A: Measurement package protocols
Tissue Doppler protocol
Measurement definitions
Label Description Units Generic type Mode
MV E Mitral valve velocity at E mm/s Velocity PW Doppler
E' Velocity at E' mm/s Velocity Tissue Doppler
A' Velocity at A' mm/s Velocity Tissue Doppler
IVRT Isovolumic relaxation time ms Time Tissue Doppler
IVCT Isovolumic contraction time ms Time Tissue Doppler
ET Ejection time ms Time Tissue Doppler
TV LW E' Tricuspid valve velocity at E' mm/s Velocity Tissue Doppler
TV LW A' Tricuspid valve velocity at A' mm/s Velocity Tissue Doppler
MV LW E' Mitral valve velocity at E' mm/s Velocity Tissue Doppler
MV LW A' Mitral valve velocity at A' mm/s Velocity Tissue Doppler
MV IVS E' Mitral valve IVS velocity at E' mm/s Velocity Tissue Doppler
MV IVS A' Mitral valve IVS velocity at A' mm/s Velocity Tissue Doppler
Calculation definitions
Name Description Units Formula
E'/A' Ratio of E' velocity to A' velocity none E' / A'
A'/E' Ratio of A' velocity to E' velocity none A' / E'
MV E/E' Ratio of MV E velocity to E' velocity none MV E / E'
TV LW E'/A' Ratio of E' velocity to A' velocity none TV LW E' / TV LW A'
TV LW A'/E' Ratio of A' velocity to E' velocity none TV LW A' / TV LW E'
MV LW E'/A' Ratio of E' velocity to A' velocity none MV LW E' / MV LW A'
MV LW A'/E' Ratio of A' velocity to E' velocity none MV LW A' / MV LW E'
MV IVS E'/A' Ratio of E' velocity to A' velocity none MV IVS E' / MV IVS A'
MV IVS A'/E' Ratio of A' velocity to E' velocity none MV IVS A' / MV IVS E'
RV Diastolic Function protocol
Measurement definitions