A feasibility study on bedside upper airway ultrasonography compared to waveform capnography for verifying endotracheal tube location after intubation

The Ultrasound Journal

Table 1 Ultrasonography confirmation of tracheal and oesophageal intubation

Ultrasound	Quantitative waveform capnography
	Endotracheal intubation	Oesophageal intubation	Total
Endotracheal intubation	99	0	99
Oesophageal intubation	2	6	8
Total	101	6	107