Table 2.

Comparison of the contrast ratio (CR) and relative standard deviation (RSD) signal intensity

Structures	CR dNAV	CR iNAV	Relative standard deviation (RSD) signal intensity dNAV	Relative standard deviation (RSD) signal intensity iNAV
Aortic root	2  (1.5, 2.4), p = 0.001*	1.5 (1.2, 1.7)	5.9 (4.2, 8.3), p = 0.8	5.6 (4.7, 6.6)
Mid ascending aorta	1.9 (1.4, 2.2), p = 0.16	1.5 (1.3, 1.9)	5.2 (3.9, 7.9), p = 0.05*	4.7 (2.5, 6.1)
Mid aortic arch	1.9 (1.2, 2.3), p = 0.006*	1.3 (1, 1.5)	6.2 (3.7, 8.4), p = 0.1	4.4 (3.8, 5.7)
Mid descending aorta	2.1 (1.5, 2.4), p < 0.001*	1.1 (1, 1.5)	5.1 (3.7, 7.4), p = 0.6	5.7 (6.8, 4.4)
Whole aorta			6.5 (4.6, 8.6), p = 0.002*	5.1 (4.4, 6.5)

Comparison of the contrast ratio (CR) and relative standard deviation (RSD) signal intensity between the dNAV T2-prepared bSSFP and the iNAV T2-prepared bSSFP CMRA in four aortic segments and the whole thoracic aorta

Asterisks (*) note the pairs with statistically significant difference in the contrast ratio and RSD of the signal intensity