Quantification of myocardial infarct area based on TRAFFn relaxation time maps - comparison with cardiovascular magnetic resonance late gadolinium enhancement, T1ρ and T2 in vivo

Table 1 Relative relaxation time difference (RRTD) values formed by infarct and remote area relaxation times presented as mean ± SD

Relaxation time constant	Day 1	Day 3	Day 7	Day 21
T_1ρ1250	0.49 ± 0.11^□	0.60 ± 0.29^□□□	0.91 ± 0.42*	0.69 ± 0.16^□□
T_1ρ625	0.41 ± 0.09^□□	0.70 ± 0.27^□□□	0.99 ± 0.44**	0.90 ± 0.24*
T_1ρ400	0.37 ± 0.09^□□	0.79 ± 0.21**,^□□	0.69 ± 0.33^□	0.90 ± 0.27**
T₂	0.41 ± 0.11^□□	0.61 ± 0.19^□□□	0.51 ± 0.11^□□	0.50 ± 0.19^□□□
T_RAFF2	0.41 ± 0.12^□□	0.62 ± 0.43^□□□	0.73 ± 0.22	0.66 ± 0.21^□□
T_RAFF4	0.90 ± 0.45	1.36 ± 0.62	1.22 ± 0.59	1.39 ± 0.37

Significance of differences in RRTD values were calculated by Two-way ANOVA with Bonferroni post hoc test (^□=P<0.05, ^□□=P<0.01, ^□□□=P<0.001 for difference to T_RAFF4 at that specific time point) and One-way ANOVA with Bonferroni post hoc test (*=P<0.05, **=P<0.01 for difference to day 1)

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