Table 4.
Characteristics by T2 values
| Characteristic | Normal T2 (n = 36) | High T2 (n = 13) | p-value |
|---|---|---|---|
| Age (years) | 11.3 [9.4–14.7] | 15.0 [12.9–19.7] | 0.005 |
| Weight (kg) | 45 [33–57] | 65 [43–83] | 0.027 |
| Height (cm) | 142 [124–152] | 160 [142–170] | 0.016 |
| LV ejection fraction (%) | 59 [58–62] | 53 [48–57] | 0.005 |
| LV Cardiac Index (L/min/m2) | 3.6 [3.3–4.3] | 3.1 [2.6–3.9] | 0.035 |
| Indexed LV diastolic volume (ml/m2) | 60 [55–69] | 73 [59–103] | 0.068 |
| Indexed LV systolic volume (ml/m2) | 25 [22–30] | 32 [25–50] | 0.026 |
| LV mass indexed (g/m2) | 45 [41–48] | 53 [45–65] | 0.021 |
| RV ejection fraction (%) | 60 [55–64] | 57 [55–60] | 0.055 |
| Indexed RV diastolic volume (ml/m2) | 54 [49–66] | 66 [62–76] | 0.008 |
| Indexed RV systolic volume (ml/m2) | 23 [19–27] | 29 [25–31] | 0.002 |
| Base native T1 (ms) | 1073 [1050–1105] | 1069 [1011–1088] | 0.340 |
| Mid native T1 (ms) | 1062 [1040–1094] | 999 [981–1069] | 0.012 |
| Apex native T1 (ms) | 1063 [1026–1108] | 1000 [905–1030] | 0.009 |
| ECV base (%) | 27.5 [24.0–32.6] | 32 [28.0–37.9] | 0.060 |
| ECV mid (%) | 28.5 [24.4–31.5] | 30 [27.5–36.0] | 0.210 |
| ECV apex (%) | 29.0 [26.2–31.3] | 32 [31.0–35.0] | 0.032 |
Characteristics based on normal or high T2 values. Continuous variables presented as median [IQR]. Wilcoxon rank-sum test was used to detect a difference between groups for continuous variables. ECV extracellular volume fraction, LV left ventricle, RV right ventricle