Table 1 Image quality was compared between CTA and MRA. 1 = poor or nondiagnostic arterial display; 2 = fair arterial display and delineation of the arterial structures with detection of lesions still possible; 3 = good arterial display without impaired delineation of the vessel structures; 4 = excellent arterial display with sharp delineation of the arteries throughout their length
| Â | Reader 1 | Reader 2 | ||||
|---|---|---|---|---|---|---|
| Â | CTA | MRA | P | CTA | MRA | P |
Distal abdominal aorta | 3.91 ± 0.30 | 3.72 ± 0.46 | 0.034 | 3.94 ± 0.25 | 3.63 ± 0.49 | 0.002 |
Common iliac artery | 3.86 ± 0.43 | 3.61 ± 0.55 | 0.003 | 3.88 ± 0.38 | 3.66 ± 0.48 | 0.002 |
External iliac artey | 3.81 ± 0.50 | 3.55 ± 0.53 | 0.005 | 3.86 ± 0.39 | 3.64 ± 0.52 | 0.002 |
Internal iliac artery | 3.63 ± 0.55 | 3.58 ± 0.56 | 0.554 | 3.64 ± 0.55 | 3.64 ± 0.48 | 0.981 |
Femoral artery | 3.78 ± 0.49 | 3.67 ± 0.47 | 0.217 | 3.78 ± 0.55 | 3.61 ± 0.52 | 0.081 |
Femoral profound artery | 3.97 ± 0.18 | 3.75 ± 0.44 | <0.001 | 3.94 ± 0.24 | 3.77 ± 0.43 | 0.002 |
Popliteal artery | 3.84 ± 0.41 | 3.75 ± 0.53 | 0.206 | 3.86 ± 0.39 | 3.78 ± 0.45 | 0.225 |
Anterior tibial artery | 3.70 ± 0.46 | 3.78 ± 0.45 | 0.251 | 3.73 ± 0.45 | 3.80 ± 0.44 | 0.433 |
Posterior tibial artery | 3.73 ± 0.45 | 3.80 ± 0.44 | 0.371 | 3.78 ± 0.42 | 3.80 ± 0.44 | 0.827 |
Peroneal artery | 3.78 ± 0.42 | 3.81 ± 0.39 | 0.593 | 3.81 ± 0.43 | 3.84 ± 0.37 | 0.655 |
Total | 3.80 ± 0.44 | 3.70 ± 0.49 | <0.001 | 3.82 ± 0.42 | 3.72 ± 0.47 | <0.001 |
Heavily calcified segment | 3.13 ± 0.77 | 3.68 ± 0.59 | <0.001 | 3.22 ± 0.68 | 3.65 ± 0.60 | <0.001 |