| Tricuspid valve morphology |
Abnormal/flail |
| Colour flow regurgitant jet |
Very large central jet or eccentric wall impinging jeta
|
| CW signal of regurgitant jet |
Dense/triangular with early peaking |
|
Semiquantitative
|
| Vena contracta width (mm) |
>7a,b
|
| PISA radius (mm) |
>9c
|
| Hepatic vein flowc
|
Systolic flow reversal |
| Tricuspid inflow |
E-wave dominant ≥1 m/sd
|
|
Quantitative
|
| EROA (mm2) |
≥40 |
| Regurgitant volume (mL/beat) |
≥45 |
| Enlargement of cardiac chambers/vessels |
RV, RA, inferior vena cava |
| CW: continuous wave; EROA: effective regurgitant orifice area; PISA: proximal isovelocity surface area; RA: right atrium/right atrial; RV: right ventricle/right ventricular; TR: tricuspid regurgitation. aAt a Nyquist limit of 50-60 cm/s. bPreferably biplane. cBaseline Nyquist limit shift of 28 cm/s. dIn the absence of other causes of elevated RA pressure. |
