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Table 3 Objective image quality parameters

From: Correcting versus resolving respiratory motion in free-breathing whole-heart MRA: a comparison in patients with thoracic aortic disease

 Respiratory self-navigatedRespiratory motion-resolvedp value
Signal intensity ratio
 Sinus6.9 ± 4.57.7 ± 2.20.325
 Sinotubular junction7.2 ± 5.47.8 ± 2.20.601
 Ascending aorta7.1 ± 5.27.3 ± 2.50.829
 Proximal arch5.6 ± 3.46.1 ± 1.80.475
 Mid arch4.7 ± 1.95.6 ± 1.70.035*
 Proximal descending aorta5.0 ± 1.38.0 ± 2.7< 0.0001*
 Mid-descending aorta6.0 ± 2.89.2 ± 2.90.0001*
Signal homogeneity274.2 ± 265.0199.8 ± 67.20.129
Right coronary artery sharpness45.3 ± 10.750.6 ± 10.10.025*
  1. *Indicating significant difference