الفهرس 
Three-Dimensional EchocardiographyOnly 14 pages are availabe for public view
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Abstract
The RV is a major determinant of clinical outcome in different cardiopulmonary disorders. Quantification of RV with 2D echocardiography is challenging because of its complex asymmetrical geometry.(1, 2) 3D echocardiography is becoming more prevalent in children because of the good acoustic windows and the non-invasive nature of the technique. 3DE allows measurements of RV volumes, thereby overcoming the limitations of 2D echocardiography.(3)
Methods:
A prospective observational cross sectional study performed on 450 normal Egyptian children randomly chosen including both genders. Subjects were divided into two age groups. ECG gated 2D and 3D TTE were done for evaluation of RV parameters.
Results:
The feasibility of 3DE was 96%. Indexed RVEDV mean value 40.5±5.4 ml/m2 in boys and 40.1±5.8 ml/m2 in girls and indexed RVESV mean value 18.8±3.7 ml/m2 in boys and 18.7±3.7 ml/m2 in girls. Indexed Stroke volume mean value 21.6±3.1 ml/m2 in boys and 21.3±3.6 ml/m2 in girls. RVEF mean value 53.7±5.1% in boys and 53.5±5.4% in girls. 3DE RVEF and ESV showed a significant negative correlation. 3DE RVESV and 3DE RVEDV mean values showed strong positive correlation. 2DE and 3DE RVESV and EDV mean indexed and absolute values showed significant difference. 2DE and 3DE FAC mean values showed positive significant correlation. 3DE FAC and RVEF showed modest positive correlation.
Conclusion:
Three-dimensional echocardiography provides RV volumes quantification and functional assessment without any geometric assumptions. Reference values and percentile curves were established for RV parameters by 3DE for the first time in the Egyptian children population.