Table 1.
Aortic level | Average | Reader 1 | Reader 2 | Weighted κ (95% CI) |
---|---|---|---|---|
Sinuses of Valsalva | ||||
Inner | 1.5 ± 0.5 | 1.5 ± 0.6 | 1.5 ± 0.6 | 0.86 (0.70–1.0) |
Outer | 2.1 ± 0.7 | 2.1 ± 0.7 | 2.1 ± 0.8 | 0.78 (0.62–0.93) |
P-value (t-test) | < 0.001 | < 0.001 | < 0.001 | NA |
Sinotubular junction | ||||
Inner | 1.6 ± 0.5 | 1.6 ± 0.5 | 1.5 ± 0.5 | 0.74 (0.53–0.95) |
Outer | 2.3 ± 0.6 | 2.3 ± 0.7 | 2.3 ± 0.6 | 0.62 (0.42–0.82) |
P-value (t-test) | < 0.001 | < 0.001 | < 0.001 | NA |
Ascending aorta | ||||
Inner | 1.3 ± 0.5 | 1.3 ± 0.6 | 1.3 ± 0.6 | 0.82 (0.65–0.99) |
Outer | 2.1 ± 0.6 | 2.1 ± 0.6 | 2.2 ± 0.6 | 0.79 (0.57–1.0) |
P-value (t-test) | < 0.001 | < 0.001 | < 0.001 | NA |
Mid-aortic arch | ||||
Inner | 1.2 ± 0.4 | 1.3 ± 0.5 | 1.2 ± 0.4 | 0.86 (0.69–1.0) |
Outer | 2.1 ± 0.6 | 2.1 ± 0.6 | 2.1 ± 0.6 | 0.79 (0.60–0.97) |
P-value (t-test) | < 0.001 | < 0.001 | < 0.001 | NA |
Descending aorta | ||||
Inner | 1.2 ± 0.4 | 1.2 ± 0.5 | 1.1 ± 0.3 | 0.85 (0.65–1.0) |
Outer | 2.4 ± 0.5 | 2.4 ± 0.5 | 2.4 ± 0.5 | 0.84 (0.66–1.0) |
P-value (t-test) | < 0.001 | < 0.001 | < 0.001 | NA |
T-test was performed for comparison of mean differences. Significant differences are in bold (significant at p < 0.05)
A four point-scale regarding sharp anatomic delineation of inner and outer edges of the vessel was used: 1 = excellent definition with sharp delineation and high contrast; 2 = well defined with good contrast; 3 = poorly defined with low contrast; 4 = not visualized
NA not applicable