Table 5:

Comparison of SNR between 2 MRA techniques in the 3 groupsa

Arterial SegmentGroup AGroup BGroup C
CE-MRATR-MRAPCE-MRATR-MRAPCE-MRATR-MRAP
Right brachiocephalic trunk211.2 ± 50.6144.0 ± 47.6.000203.0 ± 45.3211.2 ± 61.1.019204.0 ± 116.0230.8 ± 65.9.011
Right subclavian artery150.8 ± 41.097.8 ± 32.0.000144.2 ± 36.6154.0 ± 81.9.099135.2 ± 37.0167.4 ± 110.7.000
Left subclavian artery163.3 ± 35.3100.9 ± 29.3.000157.0 ± 34.0154.0 ± 40.4.276152.3 ± 36.6174.9 ± 45.7.000
Right CCA172.1 ± 45.5103.9 ± 32.6.000164.8 ± 42.1156.4 ± 48.7.017157.1 ± 44.9173.8 ± 47.3.000
Right extracranial ICA190.4 ± 63.9107.0 ± 38.9.000177.4 ± 53.5166.4 ± 57.4.003176.5 ± 54.5193.1 ± 61.3.001
Right intracranial ICA280.1 ± 77.4136.3 ± 46.6.000289.9 ± 172.2226.3 ± 74.7.000274.5 ± 71.3280.1 ± 77.2.364
Left CCA200.6 ± 48.8112.9 ± 33.3.000189.7 ± 45.9172.2 ± 43.2.000183.6 ± 50.1200.2 ± 52.0.000
Left extracranial ICA220.8 ± 66.0120.1 ± 38.5.000204.2 ± 59.3184.9 ± 62.0.000199.8 ± 61.5224.1 ± 70.8.000
Left intracranial ICA300.5 ± 73.2144.9 ± 47.1.000295.3 ± 63.5240.4 ± 66.1.000291.1 ± 70.8301.7 ± 82.5.137
Right vertebral artery165.3 ± 52.971.8 ± 27.7.000158.4 ± 57.3115.8 ± 57.9.000158.0 ± 55.2136.2 ± 56.4.000
Left vertebral artery169.6 ± 60.773.7 ± 25.6.000167.4 ± 53.8122.1 ± 49.8.000170.6 ± 55.3149.1 ± 52.2.000
Basilar artery223.2 ± 59.580.7 ± 29.5.000229.9 ± 55.4136.1 ± 62.8.000230.5 ± 46.9165.5 ± 54.9.000
  • a Data are means.