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Table 1 Methodological differences among recent studies

From: Echographic evaluation of ICU patients with tissue Doppler imaging: more studies and more consensus are still needed

Authors and
study
Number of
patients
Site of the tissue Doppler analysis Simple beat or
averaged beats
Respiratory
cycle
Weng et al. [4] 61 Septal + lateral wall averaged Three consecutive beats averaged Not specified
Moschietto et al. [2] 68 Lateral wall Three beats averaged End-expiratory
Landesberg et al. [3] 262 Septal and lateral (septal value used for E/Ea calculation) Not specified Not specified
  1. E/Ea, pulsed Doppler mitral flow in early diastole/early diastolic mitral annulus velocity.