Table 9 Comparison between the two studied groups (56 rTOF patients and 56 healthy volunteers) according to the different CMR FT parameters

Sax LV GCS %

 Min.–Max

 − 29.70 to − 12.0

 − 29.60 to − 13.20

2.126*

0.036*

 Mean ± SD

 − 20.70 ± 4.65

 − 22.22 ± 2.68

Sax LV GRS %

 Min.–Max

19.70–56.50

22.40–67.20

3.892*

 < 0.001*

 Mean ± SD

36.45 ± 8.48

42.97 ± 9.23

LV GLS %

 Min.–Max

 − 23.80 to − 8.70

 − 24.60 to − 15.10

t = 4.447*

 < 0.001*

 Mean ± SD

 − 16.92 ± 3.51

 − 19.35 ± 2.12

Sax RV GCS %

 Min.–Max

 − 26.30 to − 9.30

 − 18.70 to − 7.50

4.712*

 < 0.001*

 Mean ± SD

 − 12.66 ± 2.90

 − 15.80 ± 4.07

Long axis RV GLS %

 Min.–Max

 − 31.30 to − 5.90

 − 30.0 to − 15.50

t = 3.443*

0.001*

 Mean ± SD

 − 19.78 ± 4.97

 − 22.59 ± 3.55

RA GLS %

 Min.–Max

 − 12.60–37.60

22.0–54.70

U = 73.500*

 < 0.001*

 Mean ± SD

14.43 ± 9.09

35.36 ± 7.89