Bluml S, et al. - The utility of magnetic resonance spectroscopy (MRS) to measure noninvasively the lipid levels in the amniotic fluid (AF) in utero to determine fetal lung maturity (FLM) was described. Researchers enrolled 23 healthy women with normal, singleton pregnancies between 24–38 gestational weeks (GW) for the study at Children’s Hospital Los Angeles. Outcomes demonstrated continually steady lipid-to-water ratio until after 36 GW, at which point it increased exponentially. Thereby suggesting MRS to be a potential replacement for amniocentesis for the estimation of FLM.