Table 3.
Normal values for the basic echocardiographic measurements for assessing structures and functions of right heart according to ESD and ERS recommendations [5,16].
| Parameter | Norm |
|---|---|
| RV width in LAX | 0.9–2.6 cm |
| RV width below the PV ring in SAX | 2.5–2.9 cm |
| RV width below the TV ring in 4C | 2.7–3.3 cm |
| RV wall thickness | <0.5 cm |
| Width of the pulmonary trunk | 1.5–2.1 cm |
| IVC width | < 1.7 cm |
| IVC respiratory susceptibility | >50% (during inspiration) |
| TRV (TRPG) | ≤2.8 m/s (31 mm Hg) |
| PV flow rate | 0.6–0.9 m/s |
| AcT spectrum of the flow through the PV | >80 msec |
| TAPSE | 1.5–2.0 cm |
RV – right ventricle; LAX – projection parasternal long axis view; PV – pulmonary valve; SAX – projection parasternal short axis; TV – tricuspid valve; 4C – apical four-chamber projection; IVC – the lower vena cava; TRV – tricuspid regurgitant velocity; TRPG – the maximum gradient of tricuspid regurgitation; AcT – acceleration time; TAPSE – the amplitude of movement of the tricuspid valve ring.