Correlation between lung volume changes measured by electrical impedance tomography and respiratory inductance plethysmography in high-frequency ventilated preterm infants
2013
METHODS Lung volume changes during a stepwise individualized oxygenation-guided recruitment manoeuvre were monitored with EIT and RIP in preterm high-frequency ventilated infants with respiratory distress syndrome. Using the pressure/impedance and pressure/ inductance pairs, the infl ation and defl ation limbs were reconstructed according to Venegas and characterized by calculating the infl ection points. In addition, oscillatory tidal volume changes were assessed at each pressure step using both EIT and RIP. Analysis was performed using Pearson’s correlation coeffi cient (r).
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