Table 2.
Healthy subjects- Right atrial summary data for all ages (mean ± SD, 95% confidence interval)
| All | Males | Females | |
|---|---|---|---|
| Volume [mL] SD 20 |
100 (61, 139) |
109 (64, 154) |
91 (58, 124) |
| Volume/BSA [mL/m2] SD 10.3 |
54 (34, 75) |
55 (33, 78) |
53 (36, 70) |
| Area – 4 ch [cm2] SD 3.8 |
22 (15, 30) |
24 (15, 33) |
20 (15, 26) |
| Area/BSA – 4 ch [cm2/m2] SD 1.8 |
12 (8, 15) |
12 (8, 16) |
12 (9, 15) |
| Longitudinal diameter – 4 ch [cm] SD 0.58 |
5.5 (4.3, 6.6) |
5.6 (4.6, 6.7) |
5.3 (4.3, 6.4) |
| Longitudinal diameter/BSA – 4 ch [cm/m2] SD 0.32 |
3.0 (2.4, 3.6) |
2.9 (2.5, 3.3) |
3.1 (2.6, 3.6) |
| Transverse diameter – 4 ch [cm] SD 0.55 |
4.7 (3.7, 5.8) |
5.0 (3.7, 6.4) |
4.5 (3.6, 5.4) |
| Transverse diameter/BSA – 4 ch [cm/m2] SD 0.3 |
2.6 (2.0, 3.2) |
2.6 (1.9, 3.3) |
2.6 (2.2, 3.1) |
| Area – 2 ch [cm2] SD 3.95* |
22 (14, 29) |
23 (14, 31) |
21 (14, 27) |
| Area/BSA – 2 ch [cm2/m2] SD 2.27 * |
12 (7, 16) |
12 (7, 16) |
12 (8, 16) |
| Longitudinal diameter – 2 ch [cm] SD 0.5 |
5.4 (4.4, 6.5) |
5.7 (4.6, 6.8) |
5.1 (4.1, 6.1) |
| Longitudinal diameter/BSA – 2 ch [cm/m2] SD 0.3 |
2.9 (2.4, 3.5) |
2.9 (2.3, 3.4) |
3.0 (2.0, 4.0) |
| Transverse diameter – 2 ch [cm] SD 0.7 * |
4.3 (3.0, 5.7) |
4.3 (3.1, 5.5) |
4.4 (3.3, 5.5) |
| Transverse diameter/BSA – 2 ch [cm/m2] SD 0.4 * | 2.4 (1.5, 3.2) | 2.2 (1.5, 2.9) | 2.6 (1.5, 3.7) |
BSA – body surface area; 4 ch – 4-chamber view; 2 ch – 2-chamber view.
* Significant differences (p < 0.05) among age groups on multivariate analysis.