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Table 5: Comparison of SNR between 2 MRA techniques in the 3 groups^{^a}
Arterial Segment Group A Group B Group C
CE-MRA TR-MRA P CE-MRA TR-MRA P CE-MRA TR-MRA P
Right brachiocephalic trunk 211.2 ± 50.6 144.0 ± 47.6 .000 203.0 ± 45.3 211.2 ± 61.1 .019 204.0 ± 116.0 230.8 ± 65.9 .011
Right subclavian artery 150.8 ± 41.0 97.8 ± 32.0 .000 144.2 ± 36.6 154.0 ± 81.9 .099 135.2 ± 37.0 167.4 ± 110.7 .000
Left subclavian artery 163.3 ± 35.3 100.9 ± 29.3 .000 157.0 ± 34.0 154.0 ± 40.4 .276 152.3 ± 36.6 174.9 ± 45.7 .000
Right CCA 172.1 ± 45.5 103.9 ± 32.6 .000 164.8 ± 42.1 156.4 ± 48.7 .017 157.1 ± 44.9 173.8 ± 47.3 .000
Right extracranial ICA 190.4 ± 63.9 107.0 ± 38.9 .000 177.4 ± 53.5 166.4 ± 57.4 .003 176.5 ± 54.5 193.1 ± 61.3 .001
Right intracranial ICA 280.1 ± 77.4 136.3 ± 46.6 .000 289.9 ± 172.2 226.3 ± 74.7 .000 274.5 ± 71.3 280.1 ± 77.2 .364
Left CCA 200.6 ± 48.8 112.9 ± 33.3 .000 189.7 ± 45.9 172.2 ± 43.2 .000 183.6 ± 50.1 200.2 ± 52.0 .000
Left extracranial ICA 220.8 ± 66.0 120.1 ± 38.5 .000 204.2 ± 59.3 184.9 ± 62.0 .000 199.8 ± 61.5 224.1 ± 70.8 .000
Left intracranial ICA 300.5 ± 73.2 144.9 ± 47.1 .000 295.3 ± 63.5 240.4 ± 66.1 .000 291.1 ± 70.8 301.7 ± 82.5 .137
Right vertebral artery 165.3 ± 52.9 71.8 ± 27.7 .000 158.4 ± 57.3 115.8 ± 57.9 .000 158.0 ± 55.2 136.2 ± 56.4 .000
Left vertebral artery 169.6 ± 60.7 73.7 ± 25.6 .000 167.4 ± 53.8 122.1 ± 49.8 .000 170.6 ± 55.3 149.1 ± 52.2 .000
Basilar artery 223.2 ± 59.5 80.7 ± 29.5 .000 229.9 ± 55.4 136.1 ± 62.8 .000 230.5 ± 46.9 165.5 ± 54.9 .000
↵a Data are means.