Non-invasive assessment of changes in pulmonary artery blood flow by transcutaneous ultrasonic Doppler technique in normal children.
Explore the source record for details and available documents.
Biomedical subjects
Publications and source records attributed to M Barbacki.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Analysis of the transcutaneous Doppler velocity blood flow curve was performed in a 12 year old girl with pulmonary stenosis. The blood flow indices of the pulmonary artery were compared with those obtained in a control group.
Cardiac output, cardiac index (cardiac output/body surface) and stroke volume were investigated in 20 normal children by means of impedance cardiography. Significant differences were found in the mean values of cardiac output and cardiac index between both sexes, as well as in means of cardiac index between younger and older children. The obtained data generally agreed with the results of other investigators performing the examination by using the same technique and other methods.
83 measurements of stroke volume from an impedance cardiogram and of the corresponding area under the systolic complex of the aortic flow velocity curve obtained by means of the transcutaneous ultrasound Doppler device were carried out in 15 normal children. Between the "ideal" complexes and those requiring a little reconstruction (below 10% of maximal height of the given complex) and corresponding stroke volumes, significant correlation and regression coefficients were found. It has been suggested that the aortic flow velocity curve obtained by means of the transcutaneous ultrasound nondirectional Doppler device would be helpful in approximately estimating the stroke volume in normal children.
Explore the source record for details and available documents.
In 35 normal children some variables of the aortic arch blood flow were studied by transcutaneous ultrasonic Doppler technique. Mean values for peak velocity (V), acceleration in early systole (Acc), duration of the acceleration phase, as well as the area under the early phase of flow systolic complex (S) were calculated. A significant difference in S value was found between girls and boys. Some significant correlation and regression coefficients were found between the mentioned indices of the aortic blood flow on the one hand, and the weight, height, age and heart rate on the other. The highest values for the correlation coefficients occurred in girls between V and Acc on the one hand, and the weight of the subjects on the other.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.