Ultrasound scans damage the brains of mouse embryos
according to an article published on August 8, 2006 in the online version of The Guardian, a study that mimics the effects of ultrasounds performed during pregnancy in humans, says the Ultrasound scans damage the brains of mouse embryos. The changes caused by ultrasound are small, so the authors of the study indicate that there is no reason that pregnant women stop having the scans. However, further tests planned on monkeys and, if the same will happen with them, we should review the use of this technique to check the status of the babies inside the womb.
The ultrasonic waves are a high enough frequency to penetrate the meat. The waves bounce off tissue and the echoes can create a 3D image of the baby, but these waves also produce vibrations in the tissue and can result in increased temperature, indicating that it could cause damage.
There is no definitive evidence that a frequent exposure to ultrasound in the womb can lead to a decrease in body weight at birth, increased the chances that the child is left handed, and delayed speech development. Pasko Rakic ??and his team at Yale Medical School in New Haven, Connecticut, have shown that the brains of embryonic mice exposed to ultrasound develop abnormally, but have stressed they do not know if the changes are significant enough to alter behavior.
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