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Table 5: 
Stenosis quantification
CA StenosisNumber of Lesions on CAMRA Agreement LesionsMRA Falsely Upgraded LesionsMRA Falsely Downgraded LesionsMRA False-Negatives
<50%204 (20%)7 (35%)9 (45%)
50–<75%2512 (48%)6 (24%)1 (4%)6 (24%)
75–99%97 (78%)1 (11%)1 (11%)
100%81 (13%)4 (50%)3 (38%)
  • Note:— MRA indicates MR angiography; CA, conventional angiography. Total MRA agreement is 43 lesions, excluding 2 aneurysms. Number of lesions correctly graded or up- and downgraded by MRA when compared with CA (n = 62 CA lesions; excludes 2 aneurysms)