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You still need a section of skull removed though.

Also having done a PhD on ultrasonic imaging I'm a bit skeptical of their claims. Ultrasound is a pretty shoddy imaging technology really.



Yeah ultrasound sucks. I have an ultrasound distance measurer and it thinks a 1.8 meter gap is 0.6 meters. Extremely inaccurate.


to be fair car parking sensors are ultrasound and they are definitely not THAT inaccurate. Maybe your meter is broken




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