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Table 3: 
Morphology of CA and MRA stenoses
MorphologyMRA (n = 56)CA (n = 54)P Value
Smooth45 (80.4%)45 (83.3%).80
Irregular11 (19.6%)9 (16.7%).80
Concentric54 (96.4%)50 (92.6%).57
Eccentric2 (3.6%)4 (7.4%).57
Graduated11 (19.6%)11 (20.4%).95
Single52 (92.9%)48 (88.9%).64
Beading6 (10.7%)6 (11.1%).97
Multiple2 (3.6%)6 (11.1%).33
  • Note:— CA indicates conventional angiography; MRA, MR angiography. Data exclude occlusions and aneurysms.