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Examples of the relation between tissue Doppler e’ velocity and electrocardiographic T-peak to T-end interval. Panel A: Normal e’ velocity (12.1 cm/s) and short TpTe interval (65 ms). Panel B: Abnormally reduced e’ velocity (7.8 cm/s) and long TpTe interval (115 ms). Asterisks denote e’ wave on tissue Doppler tracings. Arrows denote TpTe interval on electrocardiography tracings.
