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IV. EVALUATION OF DICHROMATIC EARPIECE DENSITOMETRY IN CHILDREN WITH LEFT‐TO‐RIGHT SHUNTS
Author(s) -
WALLGREN C. GÖRAN,
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.tb15008.x
Subject(s) - densitometry , medicine , shunt (medical) , blood flow , cardiology , nuclear medicine
Earpiece densitometry was performed in 60 infants and children with left‐to‐right cardiovascular shunts. The method was found to possess a high diagnostic sensitivity with respect to identification of the left‐to‐right shunt. Earpiece densitometry was in this respect clearly superior to conventional method using oxygen saturation figures. Quantitation of pulmonary blood flow by both densitometric and oxygen content technique in a small number of patients indicates that the dye dilution technique gives values somewhat in excess of the Fick method. It is concluded that quantitation of the magnitude of the left‐to‐right shunt and pulmonary blood flow is disturbed by the fact that indicator material is recirculated before the ascending limb of the primary curve is fully inscribed.