| Suboptimal tracking | Leads to strain values discordant with the visual wall motion assessment and nonphysiological waveform tracing (Video 9) |
| Tracking mimicking structures (papillary muscle/trabeculation) | Underestimates GLS due to lower strain derived from nonmyocardial segments (Video 10) |
| Tracking the pericardium | Results in underestimation of LV strain |
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