Table 7 Comparison between the two studied groups (56 rTOF patients and 56 healthy volunteers) regarding different CMR RV volumetric and function indices

MRI RVEF (%)

 Min.–Max

31.0–67.0

48.0–78.0

t = 6.634*

 < 0.001*

 Mean ± SD

52.24 ± 8.21

61.43 ± 6.32

RVEDV (ml)

 Min.–Max

57.0–555.0

74.0–202.0

t = 6.552*

 < 0.001*

 Mean ± SD

238.6 ± 114.1

136.52 ± 24.10

RVESV (ml)

 Min.–Max

30.0–278.0

22.0–94.0

U = 531.500*

 < 0.001*

 Mean ± SD

119.9 ± 68.83

53.16 ± 14.99

RVSV (ml)

 Min.–Max

28.0–277.0

52.0–126.0

t = 5.417*

 < 0.001*

 Mean ± SD

121.2 ± 50.40

83.23 ± 14.52

RVEDVI (ml/m²)

 Min.–Max

76.0–330.0

50.0–106.0

t = 11.243*

 < 0.001*

 Mean ± SD

159.6 ± 54.84

75.20 ± 12.12

RVESVI (ml/m²)

 Min.–Max

28.0–165.0

15.0–61.0

U = 136.500*

 < 0.001*

 Mean ± SD

77.54 ± 32.61

29.61 ± 8.29

RVSVI (ml/m²)

 Min.–Max

46.0–165.0

24.0–89.0

t = 9.199*

 < 0.001*

 Mean ± SD

82.28 ± 27.09

46.59 ± 10.45