Agricola, E.

regurgitation valve severity regurgitant erasmus university rotterdam doppler assessment tricuspid patient aortic echocardiography vena contracta colour method contracta volume figure valvular velocity pressure annulu vena contracta width lea flet imaging valvular regurgitation systolic diameter lea flets apical r vol disease heart measurement regurgitant jet university parasternal long-axis view function width parasternal regurgitant ori fice recommendation signi parameter fication tricuspid regurgitation erasmu rotterdam ficant value downloaded prolapse aortic regurgitation dysfunction fraction lancellotti convergence ejection right pisa method dilatation point regurgitant volume presence measure echocardiographic exercise nyquist limit four-chamber apical four-chamber view fi rst aliasing mechanism annular muscle motion speci fic tricuspid valve aortic valve ischaemic tricuspid annulus mr severity