Table 2 Comparison of aortic diameters as determined by 2D bSSFP and 3D CE-CMRA imaging
2D bSSFP vs. 3D CE-CMRA | Mid Graft | Distal anastomosis | Ascending aorta | Aortic arch | Descending aorta | Diaphragm | Coelic trunk |
|---|---|---|---|---|---|---|---|
Mean diameter 2D bSSFP (mm) | 32.9 | 29.1 | 31.7 | 27.9 | 28.0 | 26.4 | 25.8 |
Mean diameter 3D CE-CMRA (mm) | 33.5 | 30.2 | 32.9 | 28.9 | 28.8 | 26.9 | 26.7 |
Mean difference (mm) | −0.5 | −1.1 | −1.3 | −1.0 | −0.8 | −0.6 | −0.9 |
Limits of agreement (mm) | −5.7 to 4.6 | −7.1 to 4.9 | −4.9 to 2.4 | −7.1 to 5.0 | −10.5 to 8.9 | −5.2 to 4.0 | −5.1 to 3.2 |
Standard deviation (mm) | 2.6 | 3.0 | 1.9 | 3.1 | 4.9 | 2.3 | 2.1 |
Variance (mm2) | 7.0 | 9.3 | 3.5 | 9.46 | 24.4 | 5.4 | 4.5 |
Pearson’s correlation (r) | 0.75 | 0.66 | 0.89 | 0.74 | 0.79 | 0.96 | 0.96 |
P value (t-test) | 0.005 | 0.009 | 0.011 | 0.011 | 0.042 | <0.001 | <0.001 |