DMS Handbook - American Institute of Ultrasound in Medicine (AIUM) Officcial Statements Regarding Biological Effects of Diagnostic Ultrasound
Conclusions Regarding Epidemiology for Obstetric Ultrasound (Approved 3/27/2010)
Based on the epidemiologic data available and on current knowledge of interactive mechanisms, there is insufficient justification to warrant conclusion of a causal relationship between diagnostic ultrasound and recognized adverse effects in humans. Some studies have reported effects of exposure to diagnostic ultrasound during pregnancy, such as low birth weight, delayed speech, dyslexia, and non-right-handedness. Other studies have not demonstrated such effects.