VDO MG 2100 Specifiche Pagina 382

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382 VisualSonics Vevo 2100 Imaging System Operator Manual Rev 1.1
Appendix A: Measurement package protocols
MV A Mitral valve A velocity mm/s Vertical Velocity PW Doppler
MV Decel E wave deceleration time
mm/s
2
Acceleration PW Doppler
T E wave deceleration time ms Time PW Doppler
IVRT Isovolumic relaxation time ms Time PW Doppler
IVCT Isovolumic contraction time ms Time PW Doppler
MV ET Mitral valve ejection time ms Time PW Doppler
NFT Non-filling time ms Time PW Doppler
AET Aortic ejection Time ms Time PW Doppler
Calculation definitions
Name Description Units Formula
MV E/A Ratio of Mitral valve E to A N/A MV E/ MV A
LV MPI LV Myocardial performance index N/A (NFT - AET) / AET
TV Flow protocol
Measurement definitions
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 Tricuspid aorta peak pressure gradient mmHg VTI PW Doppler
Cycles Tricuspid aorta 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
TR Peak V Tricuspid regurgitation peak velocity mm/s Vertical Velocity PW Doppler
Calculation definitions
Name Description Units Formula
RVSP Right ventricular systolic pressure mmHg
(4 * (TR Peak Velocity)
2
) / 1000
TV E/A Ratio of tricuspid valve E to A N/A TV E/ TV A
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