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I. VALIDITY OF DICHROMATIC EARPIECE DENSITOMETRY FOR QUANTITATIVE STUDIES IN CHILDREN WITH SHUNT‐FREE CARDIOVASCULAR MALFORMATIONS
Author(s) -
WALLGREN C. GÖRAN,
HANSON JOHN S.,
KRETZSCHMAR GÜNTER,
ZETTERQVIST PER
Publication year - 1975
Publication title -
acta pædiatrica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 115
eISSN - 1651-2227
pISSN - 0803-5253
DOI - 10.1111/j.1651-2227.1975.tb15005.x
Subject(s) - medicine , densitometry , shunt (medical)
Cardiac output was assessed in 16 children without evidence of cardiovascular shunts from simultaneously recorded earpiece and cuvette densitometric tracings. The earpiece set‐up was calibrated by the end‐tail method. Both instruments gave linear response to dye concentrations used. There was a close correlation between cardiac output figures recorded by the two methods (r=0.95) and no systematic difference occurred. It is concluded that in infants and children earpiece densitometry constitutes a rapid and accurate method for quantitative circulatory studies.