From unborn babies in the womb to kidney stones, ultra sound technology is a marvelous thing. It allows us to see inside our bodies in a non-invasive way. It’s been used as a diagnostic tool in medicine for sometime now, at least 50 years and generally it requires a specialist radiologist or sonographer and bulky machines.

Scientists at MIT want to change all that and have invested an ultrasound ‘patch’, a little like a Nicorette patch, which can be sold in pharmacies or used in small doctor’s practices. And it’s the size of a postage stamp.

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