Abstract
Determination of conditions for safe medical use of ultrasound is a difficult task which will probably require a variety of approaches. In one approach, model systems are chosen as test objects, in the hope of gaining insights which are useful generally. Plant tissues have been found suitable as models; with these, bio-effects are found at relatively low ultrasonic levels and can be investigated to determine thresholds. We shall not review previous studies here but note that in recent work a group of investigators at the University of Rochester1–4 have shown that 2 MHz ultrasound at intensities as low as 1 W/cm2 causes damage in the form of chromosome anomalies in plant roots. They also have shown that the temperature elevation during sonication is negligible under their conditions, and have suggested that some kind of cavitation might be a mechanism for the sonic effect.
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References
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© 1976 American Institute of Ultrasound in Medicine and Plenum Press, New York
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Gershoy, A., Miller, D.L., Nyborg, W.L. (1976). Intercellular Gas: Its Role in Sonated Plant Tissue. In: White, D., Barnes, R. (eds) Ultrasound in Medicine. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-4307-3_123
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DOI: https://doi.org/10.1007/978-1-4613-4307-3_123
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