Table 2 Advantages and limitations of tissue Doppler and speckle tracking based deformation imaging
From: Tissue Doppler, Strain and Strain Rate in ischemic heart disease “How I do it”
Advantages | Limitations | |
|---|---|---|
Tissue Doppler | - High temporal resolution | - Dedicated image acquisition needed. |
- Robust in case of limited image quality | - One dimensional: measures deformation along the ultrasound beam direction | |
- Easy recognition of artefacts, easy assessment of data quality | ||
- Noisy data, sensitive to stationary artefacts | ||
- Fast qualitative analysis: curves readily available by moving the mouse pointer over the myocardium (no post- processing needed) | ||
- Region of interest must be tracked to keep the same position within the myocardium | ||
- Training needed | ||
Speckle tracking | - Standard 2D images used for analysis | - Lower temporal resolution |
- Strong dependence on image quality | ||
- Two-dimensional analysis possible | ||
- Intensive regularization and drift correction with limited options for user interaction | ||
- Less noisy data | ||
- Very user friendly | ||
- Difficult assessment of data quality | ||
- Easy post-processing, wealth of graphical displays | ||
- Intervendor differences in parameter definitions and measurement algorithms | ||
- Highly automated extraction of derived parameters | ||
- Need for training underestimated |