Table 1.

For each probability map, the number of included arteries and their average volumes are presented, as well as the concatenated volume, the ratio between concatenated volume and average arterial volume, the percentage of the concatenated volume where no other probability map had a higher value, and the maximum value of each probability map.

Artery	Number of arteries (Percent of subjects)	Average arterial volume ± SD [cm3]	Concatenated volume [cm3]		Arterial volume ratio (AVR)		Dominating volume [%]		Maximum probability value
			UBA	RB	UBA	RB	UBA	RB	UBA	RB
Right ICA	167 (100)	3.0 ± 0.43	19.5	51.0	6.4	16.8	97.6	95.5	1.0	0.47
Left ICA	167 (100)	3.0 ± 0.52	19.8	45.8	6.7	15.5	97.1	95.2	1.0	0.53
BA	166 (99.4)	0.52 ± 0.18	9.9	18.7	19.0	35.7	72.5	73.1	0.79	0.25
Right VA	153 (91.6)	0.70 ± 0.43	18.3	36.4	26.1	52.0	95.4	95.2	0.51	0.12
Left VA	154 (92.2)	0.83 ± 0.41	19.2	39.7	23.2	48.0	91.8	93.5	0.68	0.15
Right PCA	166 (99.4)	0.29 ± 0.13	6.4	14.2	22.0	48.1	88.4	79.6	0.54	0.14
Left PCA	165 (98.8)	0.28 ± 0.14	6.2	13.0	21.9	46.1	89.6	82.7	0.58	0.15
Right MCA	167 (100)	0.46 ± 0.12	5.8	15.9	12.6	34.8	81.9	79.0	0.90	0.20
Left MCA	167 (100)	0.44 ± 0.13	6.5	16.3	14.8	37.1	81.6	78.2	0.89	0.18
Right ACA	157 (94.0)	0.24 ± 0.074	2.9	9.4	11.8	39.0	75.0	59.8	0.85	0.16
Left ACA	162 (97.0)	0.25 ± 0.078	2.5	9.2	10.0	36.4	64.4	50.9	0.83	0.18
ACAdistal	167 (100)	0.59 ± 0.27	10.7	21.5	18.2	36.6	95.9	93.8	0.66	0.22
Right PCoA	50 (29.9)	0.17 ± 0.060	2.4	4.5	13.9	26.1	69.0	38.8	0.88	0.24
Left PCoA	30 (17.9)	0.19 ± 0.065	1.7	3.5	9.1	18.8	77.4	42.8	0.90	0.23
Right MCAdistal	162 (97.0)	0.40 ± 0.25	14.8	24.4	36.8	61.0	97.7	96.9	0.31	0.15
Left MCAdistal	160 (95.8)	0.29 ± 0.20	12.5	18.3	42.8	62.8	97.9	97.4	0.29	0.11

UBA UBA167, RB rigid - body atlas, ICA Internal carotid artery, VA Vertebral artery, BA Basilar artery, PCA Posterior cerebral artery, MCA Middle cerebral artery, ACA Anterior cerebral artery, PCoA Posterior communicating artery