Cannie et al reported equations for estimating total fetal lung volumes. The authors are from University Hospital Gasthuisberg in Leuven, Belgium.
Patient selection: normal fetus
Parameters:
(1) gestational age in weeks
(2) liver volume in mL
(3) fetal body volume in mL
total fetal lung volume =
= (-0.0132 * ((weeks)^3)) + (1.14 * ((weeks)^2)) – (27.38 * (weeks)) + 207.50
= (4.47 * (10^(-6)) * ((liver mL)^3)) – (0.00316 * ((liver mL)^2)) + (0.909 * (liver mL)) –2.97
= (2 * (10^(-9)) * ((body mL)^3)) – (1.19 * (10^(-5)) * ((body mL)^2)) + (0.0508 * (body mL)) – 1.79
where:
• The equation using gestational age on page 200 appears to be incorrect with a minus sign before the second group of square brackets.
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Specialty: Pulmonology, Pedatrics
