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Table 2: 
Test characteristics of TOF-MRA and CE-MRA compared with angiography
TOF-MRA (95% CI)CE-MRA (95% CI)
Sensitivity75% (43%–95%)75% (43%–95%)
Specificity98% (91%–100%)97% (88%–100%)
PPV90% (56%–100%)82% (48%–98%)
NPV95% (86%–99%)95% (86%–99%)
AUROC0.90 (0.79%–1.02%)0.91 (0.79%–1.02%)
  • Note:—CE-MRA indicates contrast-enhanced MR angiography; PPV, positive predictive value; NPV, negative predictive value; AUROC, area under the receiver operating curve; CI, confidence interval.