Morphological Analysis of Bronchial Arteries and Variants with Computed Tomography Angiography

Table 1

Origin of bronchial arteries .

Origin	Side		Total (M, F)
	LBA (M, F)	RBA (M, F)
Thoracic aorta
Independent	74 (38, 36)	23 (11, 12)	97 (49, 48)
IBT	6 (5, 1)	74 (38, 36)	80 (43, 37)
CTB	32 (20, 12)	26 (17, 9)	58 (37, 21)
Aortic arch
Independent	29 (17, 12)	3 (1, 2)	32 (18, 14)
IBT	0 (0, 0)	6 (4, 2)	6 (4, 2)
CTB	19 (7, 12)	17 (6, 11)	36 (13, 23)
Others	4 (3, 1)	2 (2, 0)	6 (5, 1)
Total (n)	164	151	315

RBA = right bronchial artery, LBA = left bronchial artery, IBT = intercostal-bronchial trunk, CTB = common trunk of the bronchial arteries, M = male, and F = female.