Normal M mode echocardiographic values for neonates with mean body weight between 2000 g and 4000 g
| BW (kg) | RVAWd (mm) | RVDD (mm) | IVSd (mm) | IVSs (mm) | LVEDD (mm) | LVESD (mm) | LVPWd (mm) | LVPWs (mm) | PAD (mm) | AoD (mm) | LAD (mm) | |
| 2.0 | 1.3 | 4.0 | 2.1 | 2.4 | 15.0 | 9.7 | 1.9 | 2.8 | 6.2 | 6.9 | 8.3 | |
| 2.4 | 8.4 | 3.5 | 4.4 | 17.1 | 11.0 | 2.7 | 4.5 | 9.3 | 8.2 | 11.5 | ||
| 3.5 | 12.8 | 4.7 | 6.4 | 19.2 | 12.3 | 3.5 | 6.2 | 12.4 | 9.5 | 14.7 | ||
| 2.5 | 1.4 | 4.0 | 2.1 | 2.4 | 15.0 | 9.2 | 2.2 | 2.9 | 6.8 | 7.4 | 8.5 | |
| 2.5 | 8.4 | 3.5 | 5.0 | 18.1 | 11.7 | 3.2 | 5.0 | 11.0 | 8.8 | 12.1 | ||
| 3.6 | 12.8 | 4.7 | 7.6 | 21.1 | 14.2 | 4.2 | 7.1 | 15.2 | 10.2 | 15.6 | ||
| 3.0 | 1.4 | 4.1 | 2.3 | 2.5 | 15.1 | 9.2 | 2.4 | 3.1 | 7.0 | 7.5 | 9.4 | |
| 2.5 | 8.5 | 3.6 | 5.1 | 18.2 | 11.7 | 3.5 | 5.1 | 11.0 | 9.1 | 12.6 | ||
| 3.6 | 12.9 | 4.9 | 7.7 | 21.3 | 14.2 | 4.6 | 7.1 | 15.0 | 10.7 | 15.8 | ||
| 3.5 | 1.5 | 4.1 | 2.3 | 2.5 | 15.4 | 9.5 | 2.5 | 3.3 | 8.0 | 7.5 | 10.2 | |
| 2.6 | 8.6 | 3.7 | 5.3 | 18.8 | 11.9 | 3.6 | 5.4 | 11.2 | 9.3 | 13.2 | ||
| 3.7 | 13.1 | 5.1 | 8.1 | 22.2 | 14.3 | 4.7 | 7.5 | 14.4 | 11.1 | 16.2 | ||
| 4.0 | 1.5 | 4.1 | 2.4 | 2.6 | 16.5 | 10.2 | 2.6 | 3.5 | 9.3 | 7.6 | 10.5 | |
| 2.6 | 8.6 | 3.8 | 5.4 | 19.9 | 12.7 | 3.7 | 5.7 | 12.5 | 9.6 | 13.7 | ||
| 3.7 | 13.1 | 5.2 | 8.2 | 23.3 | 15.2 | 4.8 | 7.9 | 15.7 | 11.6 | 16.9 | ||
The mean value is bold; the value above is mean − 2 SD, the value below is mean + 2 SD.
AoD, aortic diameter; BW, body weight; IVSd, thickness of interventricular septum at end diastole; IVSs, thickness of interventricular septum at end systole; LAD, left atrial dimension; LVEDD, left ventricular end diastolic dimension; LVESD, left ventricular end systolic dimension; LVPWd, left ventricular posterior wall thickness at end diastole; LVPWs, left ventricular posterior wall thickness at end systole; PAD, pulmonary artery diameter; RVAWd, right ventricular anterior wall thickness at end diastole; RVDD, right ventricular end diastolic dimension.