Temporal frequency requirements for tissue velocity imaging of the fetal heart

The high velocity and short duration of myocardial motion requires a high sampling rate to obtain adequate temporal resolution; this issue becomes even more important when taking into consideration the high fetal heart rate. In this study we have established optimal sampling requirements for assessing the duration of various cardiac cycle events and myocardial velocities of the fetal heart using color‐coded tissue velocity imaging (TVI).

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