Morphological Analysis of Bronchial Arteries and Variants with Computed Tomography Angiography

Table 2

Location of the ostium of the bronchial arteries .

Ostium location	Independent		IBT		CTB		Others		Total
	RBA	LBA	RBA	LBA	RBA	LBA	RBA	LBA
Thoracic aorta
Anterior-medial	15	48	42	0	15	17			137
Anterior-lateral	2	12	1	0	3	7			25
Posterior-medial	1	3	13	2	0	0			19
Posterior-lateral	0	1	0	0	0	0			1
Anterior	4	8	0	0	5	5			22
Medial	1	2	18	4	3	3			31
Aortic arch									0
Superior-medial	3	17	1	0	11	13			45
Superior-lateral	0	4	0	0	3	3			10
Inferomedial	0	6	3	0	1	1			11
Superior	0	1	0	0	1	1			3
Inferior	0	0	0	0	1	1			2
Medial	0	1	2	0	0	0			3
Others							2	4	6
Total	26	103	80	6	43	51			315

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