Table 3. Image quality scores of REACT and CE-MRA.
| Vessel quality | REACT | CE-MRA | P value | |||
|---|---|---|---|---|---|---|
| Median [IQR] | Mean ± SD | Median [IQR] | Mean ± SD | |||
| Right side | ||||||
| CCA | 5 [4–5] | 4.45±0.74 | 4 [4–5] | 4.36±0.73 | 0.0050* | |
| ICA, C1 segment | 5 [5–5] | 4.68±0.65 | 5 [4–5] | 4.67±0.64 | 0.6385 | |
| ICA, C2 segment | 5 [5–5] | 4.70±0.60 | 5 [5–5] | 4.75±0.52 | 0.3609 | |
| Left side | ||||||
| CCA | 5 [4–5] | 4.43±0.75 | 4 [4–5] | 4.33±0.76 | 0.0133* | |
| ICA, C1 segment | 5 [4.25–5] | 4.70±0.57 | 5 [4–5] | 4.64±0.68 | 0.5137 | |
| ICA, C2 segment | 5 [5–5] | 4.70±0.73 | 5 [4–5] | 4.74±0.73 | 0.2291 | |
| Overall | 5 [4–5] | 4.61±0.66 | 5 [4–5] | 4.58±0.68 | 0.0299* | |
| Artifacts | 5 [4–5] | 4.51±0.70 | 5 [4–5] | 4.44±0.73 | 0.0847 | |
| Noise | 5 [4–5] | 4.43±0.67 | 4 [4–5] | 4.25±0.71 | <0.0001* | |
*, statistical significance. Scoring scales of 1–5 were used, 1 being non-diagnostic. REACT, Relaxation-Enhanced Angiography without Contrast and Triggering; CE-MRA, contrast-enhanced magnetic resonance angiography; CCA, common carotid artery; ICA, internal carotid artery; IQR, interquartile range; SD, standard deviation.