From: Lung ultrasound is non-inferior to bronchoscopy for confirmation of double-lumen endotracheal tube positioning: a randomized controlled noninferiority study
Group
Visual grading by surgeon
Collapse
No collapse
Ultrasonography (n = 97)
89 (91.8%)
8 (8.2%)
Fiberoptic bronchoscopy (n = 98)
83 (84.7%)
15 (15.3%)