Table 2 Quality of the various windows obtained and proportion of each parameter recorded in apical and subxiphoid windows in the overall population (n = 107)

Number of patients with adequate apical or subxiphoid acoustic window, n (%)

   Overall population (n = 107)

   Mechanically ventilated patients (n = 48)

   COPD population (n = 26)

Quality of the window

   A Excellent

   B Good

   C Acceptable

   D Poor

   E No image

LVEF, n (%)

E/A, n (%)

E/Ea, n (%)

Ao VTI, n (%)

RVEDA/LVEDA, n (%)