Fig. 4

Comparison of myocardial T1⍴, pre-contrast T1, post-contrast T1, and ECV. A Average myocardial pre-contrast T1, B T1ρ, C post-contrast T1, and D ECV were measured for HCM patients and controls as indicated. HCM patients were subcategorized by LGE rating: LGE + +, LGE + −, and LGE −−. Kruskal–Wallis test showed statistically significant differences between groups for pre-contrast T1, T1ρ, and ECV (p < 0.001 for all). For both T1 and T1ρ, a post-hoc Dunn test showed differences between controls and each LGE category (p < 0.001 for all). For ECV, a post-hoc Dunn test adjusted for multiple comparisons showed differences between controls and each LGE category (p < 0.01 for all), as well as LGE + + and LGE −− (p = 0.01). Statistically significant differences are indicated by * on the bar graphs