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Table 3 Comparison of X-rays pre- and post-percutaneous dilatational tracheostomy

From: Evaluation of regional ventilation by electric impedance tomography during percutaneous dilatational tracheostomy in neurocritical care: a pilot study

Patient number Pre PDT Post PDT
1 Right basal area: progression of condensation. Right basal area: bronchopneumonia with higher proportion of basal pleural effusion and hypoventilation.
2 No negative findings. No negative findings.
3 Right base upper lobe: new inhomogeneous shading.
Left caudal lung: pleural effusion and hypoventilation.
Right middle area: minimal regression of inhomogeneous shading.
Left middle and lower area: slight regression of lower transparency with spontaneous pleural effusion.
4 No negative findings. No negative findings.
5 Right lower area: minor progression of inflammation. Right lower area: slight regression of inflammatory changes.
6 Right basal right area: pleural effusion. Right middle and lower, left basal area: pleural effusion.
7 Right middle area: inflammation. Right of upper lobe and left paracardical basal: bronchopneumonia.
8 Right middle area: small residual shadow. Bilateral, bigger on right: pleural effusion.
9 Bilateral lower area: plate-like atelectases. Left lower area: plate-like atelectases.
10 Basal right area: lower transparency. Right basal: partial regression of lower transparency.
11 Bilateral basal area: spilled pleural effusion. Bilateral, bigger on right, basal area: spilled pleural effusion.