http://articles.mercola.com/sites/articles/archive/2003/02/19/ultrasound-scans2.aspx[ Continued from Page 1 ] Biological Effects of Ultrasound Ultrasound waves are known to affect tissues in two main ways. Firstly, the sonar beam causes heating of the highlighted area by about 1 degree Celsius. This is presumed to be non-significantenCommunityServer 2008.5 SP1 (Build: 31106.3070)