Myocardial native T1 mapping and extracellular volume quantification in asymptomatic female carriers of Duchenne muscular dystrophy gene mutations

Table 1 Comparison of mean global and segmental native T₁ relaxation time and mean global and segmental ECV values and other parameters between DMD-FC and the CG

Parameter	DMD-FC (n = 38)	CG (n = 22)	P-value
Age [years]	39 ± 8.8	39.9 ± 12.6	0.76
BMI [kg/m²]	23.8 ± 3.4	23.17 ± 3.9	0.64
LVEF [%]	65.6 ± 5.5	68.4 ± 6.57	0.33
Global native T₁relaxation time [ms]	1005.1 ± 26.3	1003.5 ± 25.0	0.81
Native T₁relaxation time [ms]: anterior segment	997.3 ± 33.7	1006.7 ± 35.9	0.31
Native T₁relaxation time [ms]: anteroseptal segment	1001.5 ± 35.2	994.9 ± 26.9	0.45
Native T₁relaxation time [ms]: inferoseptal segment	1013.8 ± 26.0	1004.5 ± 30.8	0.22
Native T₁relaxation time [ms]: inferior segment	1008.7 ± 40.1	1003.5 ± 31.9	0.60
Native T₁relaxation time [ms]: inferolateral segment	1012.5 ± 32.4	1012.4 ± 36.7	0.99
Native T₁relaxation time [ms]: anterolateral segment	992.8 ± 32.0	1004.7 ± 37.0	0.19
Global ECV value [%]	27.93 ± 2.02	27.10 ± 2.89	0.20
ECV value: anterior segment	27.86 ± 2.35	26.90 ± 2.66	0.16
ECV value: anteroseptal segment	27.72 ± 2.10	27.62 ± 3.17	0.88
ECV value: inferoseptal segment	28.41 ± 2.21	27.73 ± 3.25	0.34
ECV value: inferior segment	28.26 ± 2.62	26.79 ± 3.65	0.075
ECV value: inferolateral segment	27.83 ± 2.94	26.30 ± 3.34	0.070
ECV value: anterolateral segment	27.63 ± 2.30	27.02 ± 3.12	0.39

Parameters are shown as mean ± standard deviation
BMI = body mass index; ECV = extracellular volume; DMD- FC = Female carriers of Duchenne muscular dystrophy gene mutations; CG = Control group; LVEF = left ventricle ejection fraction

ISSN: 1750-1172