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this post was submitted on 15 Oct 2023
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This is my non expert opinion but based on what I know about sound waves I think this is how they are doing it. Hopefully someone more knowledgeable can chip in with more sources.
It looks like you can target and focus the sound waves to converge and only be strong enough to trigger the cavitation effect in tumorous areas . The cavitation creates tiny bubbles and damage the tissue only in the focus area.
It's similar to how radiotherapy works in that it's concentrated damage in a targeted area, but less much less damaging to other tissue that it passes through.
Sound waves shouldn't be as harmful as radiation sources, so it could be a great addition to the arsenal if it proves effective.