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Figure 4 | Critical Care

Figure 4

From: Impact of real-time ultrasound guidance on complications of percutaneous dilatational tracheostomy: a propensity score analysis

Figure 4

Confirmation of guidewire position (longitudinal). Longitudinal view of the trachea following guidewire (GW) passage, seen entering the trachea between the first and second tracheal rings. CR, cricoid cartilage in cross section; ETT, endotracheal tube tip; T1, first tracheal ring in cross section; T2, second tracheal ring in cross section.

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Critical Care

ISSN: 1364-8535