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Figure 9 | Cardiovascular Ultrasound

Figure 9

From: Echocardiographic quantification of myocardial function using tissue deformation imaging, a guide to image acquisition and analysis using tissue Doppler and speckle tracking

Figure 9

Impact of stationary artifact on 2DSE. 2DSE derived strain-rate of one cardiac cycle in the lateral wall in the same ultrasound examination of figure 6. Top left: B-mode recording with 2DSE ROI of the lateral wall. Bottom left: Color-coded M-mode of strain-rate values. The stationary artifact can be seen at the level of the green arrow. Due to the implementation of a clutter filter in the tracking algorithm, 2DSE is less influenced by artifacts. Note the normal SR curves (right) despite the prominent artifact. Consequently, no reversal of strain-rate is seen in the color-coded M-mode between the white arrows (compare to figure 6). The appropriate ROI tracking can be seen in the additional file (see Additional File 2)

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