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Mean difference in stenosis value and 95% confidence intervals of all symptomatic stenosis for each imaging modality (cases of local signal loss assigned as 90% stenosis)
Modality All Examinations (Signal Loss = 90%) Examinations Without Local Signal Loss Only
Difference (%) 95% Simultaneous CI Difference (%) 95% Simultaneous CI
CE-MIP vs CT 7.0 3.4 10.6 2.8 −0.8 6.4
TOF-MIP vs CT 2.8 −0.8 6.5 −0.8 −4.4 2.8
CE-MPR vs CT 4.0 0.4 7.6 −0.8 −4.4 2.7
TOF-MPR vs CT 0.6 −3.0 4.3 −3.9 −7.5 −0.4
TOF-MIP vs CE-MIP −4.2 −7.8 −0.6 −3.6 −7.2 0
CE-MPR vs CE-MIP −3.0 −6.6 0.6 −3.6 −7.2 −0.1
TOF-MPR vs TOF-MIP −2.2 −5.8 1.4 −3.1 −6.7 0.4
TOF-MPR vs CE-MPR −3.4 −7.0 0.3 −3.1 −6.7 0.5
Note:—CI indicates confidence interval; CE, contrast-enhanced; MIP, maximum intensity projection; TOF, time-of-flight; MPR, multiplanar reformation. When only studies without local signal loss are included, the differences between the modalities decrease.