Table 1 Comparison of the image quality scores between the dNAV and the iNAV T2-prepared bSSFP sequences
Structure | Blurring from respiratory motion | Signal homogeneity in the blood pool | ||
|---|---|---|---|---|
dNAV | iNAV | dNAV | iNAV | |
Aortic root (Reviewer 1) | (25th percentile, 75th percentile) 4 (3, 4), p = 0.05* | (25th percentile, 75th percentile) 4 (4, 4) | (25th percentile, 75th percentile) 4 (3, 4), p = 0.29 | (25th percentile, 75th percentile) 4 (3, 4) |
Aortic root (Reviewer 2) | 3 (3, 4), p < 0.001* | 4 (4, 4) | 4 (3, 4), p = 0.8 | 4 (3, 4) |
Aortic root (Reviewer 3) | 4 (3, 4), p = 0.15 | 4 (4, 4) | 4 (3, 4), p = 0.8 | 4 (4, 4) |
Mid ascending aorta (Reviewer 1) | 4 (3, 4), p < 0.001* | 4 (4, 4) | 4 (3, 4), p = 0.12 | 4 (3, 4) |
Mid ascending aorta (Reviewer 2) | 3 (3, 4), p < 0.001* | 4 (4, 4) | 4 (3, 4), p = 0.17 | 4 (4, 4) |
Mid ascending aorta (Reviewer 3) | 4 (3, 4), p = 0.05* | 4 (4, 4) | 4 (4, 4), p = 0.14 | 4 (4, 4) |
Mid aortic arch (Reviewer 1) | 4 (4, 4) p = 0.24 | 4 (4, 4) | 4 (4, 4), p = 0.06 | 4 (3, 4) |
Mid aortic arch (Reviewer 2) | 4 (3, 4), p = 0.002* | 4 (4, 4) | 3.75 (4, 4), p = 1 | 4 (3, 4) |
Mid aortic arch (Reviewer 3) | 4 (3, 4), p = 0.02* | 4(4,4) | 4(4, 4), p = 0.2 | 4 (4, 4) |
Mid descending aorta (Reviewer 1) | 4 (4, 4), p = 1 | 4 (4, 4) | 4 (3, 4), p = 0.1 | 4 (3, 4) |
Mid descending aorta (Reviewer 2) | 4 (4, 4), p = 0.1 | 4 (4, 4) | 4 (4, 4), p = 0.5 | 4 (4, 4) |
Mid descending aorta (Reviewer 3) | 4 (4, 4), p = 0.1 | 4 (4, 4) | 4 (4, 4), p = 1 | 4 (4, 4) |