Abstract
In any type of sonographic examination, including endosonography, ultrasound waves are subject to certain physical laws. As the waves pass through the human body, interaction of the sound field with the tissues can produce various biologic effects (bioeffects), not all of which are harmful. The tissue responses to ultrasound are based upon thermal effects as well as other phenomena, most notably acoustic cavitation. The relevant quantity in terms of bioeffects is the ultrasound energy, which is measured in W/cm2.
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Bernaschek, G., Deutinger, J., Kratochwil, A. (1990). Safety Aspects of Endosonography. In: Endosonography in Obstetrics and Gynecology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-74111-1_2
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DOI: https://doi.org/10.1007/978-3-642-74111-1_2
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