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.