Left atrial volume | Three dimensional echocardiography | Three dimensional echocardiography normalised to BSA † | MRI | MRI normalised to BSA |
Maximum volume (ml) | 29.2 (6.8) | 24.0 (4.0) | 26.7 (7.4) | 22.1 (5.3) |
Minimum volume (ml) | 9.2 (2.1)2-150 | 7.6 (1.1)2-150 | 14.5 (4.4)2-150 | 11.9 (2.6)2-150 |
Cyclic volume change (ml) | 20.0 (5.2)2-150 | 16.5 (3.3)2-150 | 12.2 (3.7)2-150 | 10.2 (3.3)2-150 |
Passive emptying volume (ml) | 15.8 (4.4) | 13.0 (2.9) | NA | |
Atrial stroke volume (ml) | 4.2 (1.3) | 3.5 (1.1) | NA | |
Atrial stroke volume/ cyclic volume change (%) | 21.4 (4.9) | NA | ||
Heart rate (beats /min) | 76 (8) | 80 (11) |
Values are mean (SD).
↵2-150 p < 0.001 between three dimensional echocardiography and MRI.
† Absolute volume (ml) / body surface area (m2).
BSA, body surface area; NA, not available.