Application of 320-row multidetector free-breathing cine CT in diagnosis of pediatric expiratory central airway collapse

Egyptian Journal of Radiology and Nuclear Medicine

Table 1 Sites of expiratory airway collapse detected by cine CT compared to bronchoscopy

Site of expiratory airway collapse	Bronchoscopy		Cine CT		Chi-square
Site of expiratory airway collapse	No	%	No	%	X²	p value
Trachea at thoracic inlet	4	12.5	7	21.8	85.168	< 0.0001
Trachea at aortic arch	3	9.4	5	15.6
Carina	4	12.5	6	18.8
Right main bronchus	14	43.7	4	12.5
Bronchus intermedius	3	9.4	4	12.5
Left main bronchus	4	12.5	6	18.8
Total	32	100.00	32	100.00