Fig. 5.

Bland–Altman plot of total inspiratory work of breathing measurements, expressed in J/L, between the two methods compared (Campbell and Ventilator). ${\text{WOB}}_{{\text{tot}}_{\text{displayed}}}$, inspiratory work of breathing calculated by the ventilator; ${\text{WOB}}_{{\text{tot}}_{\text{real}}}$, inspiratory work of breathing calculated by the Campbell diagram