Table 3 Major advantages and disadvantages of various echocardiographic techniques for assessing SV cardiac function
| Â | Major advantages | Major disadvantages |
|---|---|---|
2DE | Wide range of applications Easy acces | Dependent on geometric assumptions Susceptible to load Low sensitivity Used more to assess overall rather than local cardiac function |
TDI | Parameters Moderately Correlated with VEDP Measured by Cardiac Catheterization | There was no statistically significant correlation between EF measured by CMR and Tei index Angle dependence |
RT-3DE | Provides a full range of 3D images of the heart Real-time observation Parameters correlate well with CMR-EF | Highly dependent on image quality Large SV cannot be included in a single view Sensitive to changes in position, respiration, and heart rate RT-3DE tends to underestimate right ventricular volume in children with SRV |
2D-STI | 2D-STI-Measured strain rates closely correlate with VEDP measured by cardiac catheterization 2D-STI measured strain in good agreement with CMR | Depends on image quality Cross-plane motion loss tracking phenomenon |
PSL | MWI may be a more sensitive indicator of myocardial damage than ejection fraction and may predict exercise capacity | Few studies have been done on the subject Role is uncertain |
3D-STI | Torsion measured with 3D-STI has good reproducibility and is age-independent | Highly dependent on image quality Complex post-processing and expensive equipment |
VVI | Provides multidirectional myocardial motion information Strain rate measured by VVI closely correlates with Max (dp/ dt) measured by cardiac catheterization | Few relevant studies |