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Table 2 Quantitative image quality results for the BH-MRA and FB-TRA sequences

From: Free breathing contrast-enhanced time-resolved magnetic resonance angiography in pediatric and adult congenital heart disease

  BH-MRA FB-TRA P-value
Signal Intensity: Vessel 156.5 ± 66.4 67.7 ± 14.5* P < 0.0001
Standard Deviation: Vessel 36.9 ± 21.0 15.4 ± 5.2* P < 0.0001
Coefficient of Variation: Vessel (%) 23.1 ± 5.7 22.6 ± 5.0 P = 0.52
Signal Intensity: Tissue 20.5 ± 7.9 11.7 ± 3.4* P < 0.0001
Standard Deviation: Tissue 7.2 ± 2.6 7.1 ± 2.2 P = 0.85
Coefficient of Variation: Tissue (%) 36.0 ± 6.6 62.7 ± 19.5* P < 0.0001
SNR 24.0 ± 11.6 10.5 ± 4.2* P < 0.0001
CNR 21.1 ± 11.7 8.8 ± 3.8* P < 0.0001
Relative Contrast 0.74 ± 0.13 0.70 ± 0.08* P = 0.02
Edge Sharpness (mm−1)    
Average 0.88 ± 0.39 2.33 ± 1.03* P < 0.0001
Standard deviation 0.14 ± 0.08 0.25 ± 0.19* P < 0.0001
  1. *Value is statistically significantly different from BH-MRA