Table 3.
CMR characteristics of patients and controls
| Unit | IBM cohort (n = 20) | Control cohort (n = 20) | Unpaired t test p value |
|
|---|---|---|---|---|
| LVEDV (ml) | Median [5;95] | 136.5 [81.3; 305.0] | 153.5 [82.4; 238.0] | 0.52 |
| LVEDV index (ml/m2) | Mean ± SD | 73.2 ± 20.7 | 76.15 ± 17.25 | 0.63 |
| LVSV (ml) | Median [5;95] | 49.8 [24.1; 129.4] | 87.0 [39.6;130.9] | 0.0001 |
| LVSV index (ml/m2) | Median [5;95] | 25.5 [14.1; 4.0] | 45.0 [19.6; 72.1] | < 0.0001 |
| Ventricular mass (g) | Mean ± SD | 107.1 ± 37.5 | 100.3 ± 23.4 | 0.51 |
| Ventricular mass index (g/m2) | Median [5;95] | 51.5 [35.1; 112.0] | 49.5 [2.1; 77.4] | 0.28 |
| LVEF (%) | Mean ± SD | 62.60 ± 6.531 | 59.9 ± 6.7 | 0.20 |
| RVEDV (ml) | Mean ± SD | 139.1 ± 47.2 | 150.8 ± 41.5 | 0.41 |
| RVEDV index (ml/m2) | Mean ± SD | 70.2 ± 17.3 | 77.3 ± 18.3 | 0.22 |
| RVSV (ml) | Mean ± SD | 53.5 ± 20.8 | 85.7 ± 23.0 | < 0.0001 |
| RVSV index (ml/m2) | Mean ± SD | 26.8 ± 8.5 | 44.1 ± 11.2 | < 0.0001 |
| RVEF (%) | Mean ± SD | 62,04 ± 6,637 | 61.1 ± 10.3 | 0.72 |
| T1 ratio (normal < 4.0) | Median [5;95] | 3.8 [2.0; 11.0] | 2.9 [1.0; 6.4] | 0.10 |
| T1 ratio path, n (%) | Frequency | 8/18 (44) | 1/19 (5) | 0.005 |
| PE, n (%) | Frequency | 3 (15) | 4 (20) | 0.69 |
| LGE, n (%) | Frequency | 7 (35) | 4 (20) | 0.30 |
AHT arterial hypertension, LVEDV left ventricular end-diastolic volume, LVSV left ventricular stroke volume, LVEF left ventricular ejection fraction, RVEDV right ventricular end-diastolic volume, RVSV right ventricular stroke volume, PE pericardial effusion, LGE late gadolinium enhancement
Significant p values are indicated in bold
CMR indexes are related to body surface area (BSA), which was calculated by the Dubois and Dubois regression formula BSA = 0.007184 × weight(kg)0.425 × height[cm]0.725