Intracardiac blood flow velocities and cardiac output in normal fetuses: a prospective pulsed Doppler echocardiographic study.
Indian Heart J
;
1992 Nov-Dec; 44(6): 399-402
Article
in English
| IMSEAR
| ID: sea-5959
ABSTRACT
Two dimensional and pulsed Doppler echocardiographic studies were performed in human fetuses with the aim to establish normal values for blood flow velocities and cardiac output in Indian subjects. Thirteen pregnant mothers were prospectively followed up at 4 weeks interval from 19 to 40 weeks of gestation. Blood flow velocity spectra across aortic, pulmonary, mitral and tricuspid valves were analyzed to obtain peak flow velocity (cm/sec) and velocity time integral. Aortic and pulmonary diameters were measured at the valve level from two dimensional echocardiographic images and ventricular stroke volume calculated. The values were plotted against fetal age (weeks) and fetal weight (gms). Our results showed that there is a linear increase of the measured Doppler data, with increasing gestational age and weight. These values may be used as a reference for the Indian population.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Blood Flow Velocity
/
Female
/
Humans
/
Pregnancy
/
Cardiac Output
/
Echocardiography, Doppler
/
Prospective Studies
/
Ultrasonography, Prenatal
/
Coronary Circulation
/
Fetus
Type of study:
Diagnostic study
/
Observational study
Language:
English
Journal:
Indian heart j
Year:
1992
Type:
Article
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