PMID: 6984549Jan 1, 1982Paper

The action of low-intensity pulsed ultrasound on amphibian embryonic tissues

Ultrasound in Medicine & Biology
A P SarvazyanT V Ostroumova

Abstract

Amphibian embryos at different stages of development, and ectomesodermal explants (small pieces of embryonic tissue extirpated from lateral parts of the embryos just after neurulation), have been irradiated with continuous and pulsed ultrasound at a frequency of 0.88 MHz, spatial and temporal average intensities being within the range 0.025-0.1 W cm2. Ultrasound pulse repetition frequencies were varied within 10-1000 Hz, duty factor being constant and equal to 0.5. Destruction of embryonic tissue as an immediate effect, and interruption or distortion of development as delayed (24 hr) effects, were registered. Significant damaging effects of non-cavitational and non-thermal origin and dependent on pulse repetition frequencies, were observed. Highly frequency-dependent resonance-type effects were obtained for irradiated explants. The maximum effect on Rana temporaria explants was obtained at pulse repetition frequencies of 10-20 Hz and on Xenopus laevis explants at 110-130 Hz.

References

Nov 1, 1975·The Tohoku Journal of Experimental Medicine·N MuraiM Suzuki

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Citations

Mar 1, 2011·Therapeutic Delivery·Alison BurgessKullervo Hynynen
Mar 18, 2008·Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft·R SureshA Mc Rae
Sep 30, 2010·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Skylar MarvelPaul A Dayton
Jan 1, 1985·Ultrasound in Medicine & Biology·R G Mayev
Oct 1, 1984·Journal of Clinical Ultrasound : JCU·H F Stewart, R M Moore
Mar 1, 1985·Journal of Clinical Ultrasound : JCU·H D StewartJ Garry
Sep 26, 2006·Birth Defects Research. Part A, Clinical and Molecular Teratology·Suresh RaoAmanda McRae

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