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Safety of Ultrasound in pregnancy

By Dr Shobhana Mohandas

Ultrasound is a mechanical energy in which a pressure wave travels through tissue. Reflection and scattering back to the transducer are used to form the image.Use of ultrasound in pregnancy has come as a boon to the obstetrician, totally changing the practice scenario. No consensus seems to have been reached on how much scanning is permissible in pregnancy. It remains a fact that prolonged exposure at a time can cause thermal damage, an event unlikely at routine scans. Whether repeated exposures can cumulatively cause damage is the point that requires further study.


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