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. 2015 Feb;70(2):73–80. doi: 10.6061/clinics/2015(02)01

Figure 1.

Figure 1

Measurement of the total atrial conduction time (PA-TDI interval). The PA-TDI interval was defined as the time interval between the onset of the P-wave on the surface ECG and the peak Am wave on the tissue Doppler tracing. ECG: electrocardiogram; Am: tissue Doppler mitral annular late diastolic velocity.