MRI Variables in Segments from Healthy Volunteers and in Overall Segments from Patients
| Variable | Healthy volunteers (n = 74) | Patients (n = 88) |
|---|---|---|
| Thickness (cm) | 0.99 ± 0.15 | 1.12 ± 0.36* |
| Curvature radii (cm)† | ||
| Circumferential | 3.2 ± 1.2 | 4.0 ± 2.0* |
| Meridional | 20 ± 41 | 11 ± 17* |
| Diastolic wall tension index‡ (N · m−1 · mm Hg−1) | 3.2 ± 1.2 | 3.1 ± 1.1 |
| Diastolic wall stress index‡ (hN · m−2 · mm Hg−1) | 3.2 ± 1.6 | 2.9 ± 1.3 |
↵* P < 0.05 for comparisons between overall segments from patients and segments from healthy volunteers.
↵ † Apical segments, which are not analyzed using meridional and circumferential curvature radii, are excluded.
↵ ‡ End-diastolic wall tension and wall stress are calculated for standard value of 1 mm Hg of left ventricular hydrostatic pressure at end-diastole.