Interobserver agreement
| Variable | ACT, Mean κ Values ± SD | MSCT, Mean κ Values ± SD | P |
|---|---|---|---|
| Overall impression | 0.73 ± 0.06 | 0.78 ± 0.04 | .117 |
| Contrast media distribution | 0.74 ± 0.05 | 0.65 ± 0.09 | .059 |
| Perceptibility of intervertebral disks | 0.65 ± 0.22 | 0.69 ± 0.09 | .689 |
| Perceptibility of bone structure | 0.64 ± 0.12 | 0.78 ± 0.05 | .030 |
| Delineation of the spinal canal | 0.75 ± 0.05 | 0.78 ± 0.03 | .172 |
| Delineation of spinal nerve roots | 0.66 ± 0.09 | 0.72 ± 0.03 | .193 |
| Diagnostic applicability | 0.74 ± 0.06 | 0.75 ± 0.03 | .826 |
Note:—ACT indicates angiographic CT; MSCT, multisection CT. Data are n = 6, except for “diagnostic applicability,” where n = 3 by Student t test.