Mean image quality | Wilcoxon | ICC | ||||
---|---|---|---|---|---|---|
Level | Single dose | Double dose | Δ % | P value | Intra | Inter |
LAD prox | 0.65 ± 0.40 | 0.89 ± 0.26 | 36.9 | 0.004 | 0.77 | 0.81 |
LAD mid | 0.48 ± 0.33 | 0.60 ± 0.29 | 25.0 | 0.048 | 0.44 | 0.7 |
LCX prox | 0.52 ± 0.39 | 0.62 ± 0.40 | 19.2 | NS | 0.73 | 0.76 |
LCX mid | 0.14 ± 0.25 | 0.33 ± 0.35 | 135.7 | 0.020 | 0.6 | 0.51 |
RCA prox | 0.68 ± 0.38 | 0.69 ± 0.40 | 1.5 | NS | 0.87 | 0.79 |
RCA mid | 0.33 ± 0.24 | 0.43 ± 0.38 | 30.3 | NS | 0.48 | 0.61 |
Overall prox | 0.62 ± 0.36 | 0.73 ± 0.29 | 17.7 | NS | - | - |
Overall mid | 0.32 ± 0.22 | 0.45 ± 0.27 | 40.6 | 0.013 | - | - |
Overall prox+mid | 0.47 ± 0.29 | 0.60 ± 0.25 | 27.7 | 0.019 | - | - |