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Table 3 Pulse Doppler and TDI parameters.

From: Quantitative analysis of left atrial function in asymptomatic patients with b-thalassemia major using real-time three-dimensional echocardiography

Variable Patients Controls p
E (cm/s) 67.7 ± 5.9 70.45 ± 8.0 0.1
A (cm/s) 45.25 ± 5.9 45.6 ± 5.7 0.8
E/A 1.5 ± 0.1 1.6 ± 0.1 0.3
E' (cm/s) 13.9 ± 1.9 14.3 ± 2.0 0.5
E/E' 4.9 ± 0.8 4.9 ± 0.7 0.9
IVRT (msec) 59 ± 31 61 ± 28 0.6
DT (msec) 141 ± 38 136 ± 44 0.8
  1. Values are expressed as mean and standard deviation. IVRT = isovolumic relaxation time; DT = deceleration time. In all cases differences were not statistical significant (p = NS).