Fig. 1From: The predictive value of neurally adjusted ventilatory assist indexes for the prognosis of patients with severe cerebral hemorrhageStudy methods. A Confirmation of the EAdi catheter position; B measurement of the peak EAdi (EAdimax); C measurement of NVE, calculated as VT/EAdimax. D measurement of NME, calculated as (positive end-expiratory pressure − minimal airway pressure)/EAdimax. EAdi, electrical activity of the diaphragm; NVE, neuro-ventilatory efficiency; NME, neuro-muscular efficiency; VT, Tidal VolumeBack to article page