One Australian study showed that
babies exposed to 5 or more doppler ultrasounds were 30% more likely to develop intrauterine growth retardation (IUGR)- a condition that ultrasound is often used to detect.26
Two long-term randomised controlled trials, comparing exposed and unexposed childrens’ development at eight ti nine years old, found no measurable effect from ultrasound.38,39 However, as the authors note, intensities used today are many times higher than in 1979 to 1981. Further, in the major branch of one trial, scanning time was only three minutes.40 More studies are obviously needed in this area, particularly in the areas of
Doppler and vaginal ultrasound, where exposure levels are much higher.
Bookmarks