Intraobserver agreement
| Variable | ACT, Mean κ Values ± SD | MSCT, Mean κ Values ± SD | P |
|---|---|---|---|
| Overall impression | 0.81 ± 0.05 | 0.73 ± 0.15 | .454 |
| Contrast media distribution | 0.75 ± 0.02 | 0.79 ± 0.08 | .533 |
| Perceptibility of intervertebral disks | 0.65 ± 0.26 | 0.68 ± 0.17 | .875 |
| Perceptibility of bone structure | 0.74 ± 0.02 | 0.78 ± 0.02 | .068 |
| Delineation of the spinal canal | 0.75 ± 0.08 | 0.78 ± 0.02 | .659 |
| Delineation of spinal nerve roots | 0.74 ± 0.04 | 0.78 ± 0.03 | .256 |
Note:—ACT indicates angiographic CT; MSCT, multisection CT. Data are n = 3 by Student t test.