Table 2:
Differences in diagnostic performance of C-CTA and R-CTA
| Variables | C-CTA | R-CTA | ORa | P Values |
|---|---|---|---|---|
| Subject-based analysis | ||||
| Feeder detection accuracy (%) | ||||
| Observer 1 | 47 (7/15) | 80 (12/15) | .025b | |
| Observer 2 | 40 (6/15) | 73 (11/15) | .025b | |
| Time required for diagnosis (sec) | ||||
| Observer 1 | 97.1 ± 37.4 | 45.1 ± 23.6 | .002b | |
| Observer 2 | 89.5 ± 60.0 | 45.6 ± 24.1 | .020b | |
| Intervertebral foramen–based analysis | ||||
| Sensitivity (%)c | 44.4 (22.2–66.7) | 72.2 (50.0–94.4) | 3.26 (0.82–13.0) | .095 |
| Specificity (%)c | 98.1 (97.8–99.5) | 99.5 (98.7–100) | 3.55 (0.87–14.5) | .077 |
| Accuracy (%)c | 95.6 (93.8–97.2) | 98.2 (96.9–99.2) | 2.49 (1.04–6.00) | .041b |
a
ORs of R-CTA against C-CTA are shown.
b
Significant.
c
95% Confidence intervals are shown.