[Significance and margin of error of echoventriculography in children up to 3 years of age].

Comparative ventricular measurements were made on 43 small children and infants between the ages of 0 and 3 years, the methods used being those of pneumoencephalography and enchoventriculography. The number of cases that could be analyzed was 31. Good agreement of the results for the third ventricle was obtained in 64.5 per cent and for the lateral ventricular index, in 80.6 per cent of the cases. More or less satisfactory agreement of the two methods provides against making a clear decision in favor of one or the other method. Good agreement was observed between the results of repeated echoventriculographic examinations on 31 normal children. From these results as well as from th results of echographic examination on hydrocephalic children it can be concluded that echoventriculography is a reliable method of diagnosis even in those cases in which it is routinely applied to both inpatients and outpatients.