Table 1 Recommendations for the echocardiographic assessment of tricuspid regurgitation: a summary from review of Arsalan M and the European Association of Cardiovascular Imaging
Parameters | Mild | Moderate | Severe |
|---|---|---|---|
Tricuspid valve morphology | Normal | Normal/abnormal | Abnormal/flail/large coaptation defect |
RA/RV/IVC dimension | Normal | Normal/enlargement | Enlargement |
Area of backflow beam − central backflow beam (cm2) | < 5 | 5–10 | > 10 |
VC width (cm) | Not defined | Not defined, < 0.7 | > 0.7 |
PISA radius (mm) | ≤ 0.5 | 0.6–0.9 | > 0.9 |
Color flow TR jet | Small, central | Intermediate | Very large central jet or eccentric wall-impinging jet |
CW signal of TR jet | Faint/parabolic | Dense/parabolic | Dense/triangular with early peaking (peak < 2 m/s in massive TR) |