There were a lot of people who declared very loudly last week during the Midjourney discourse that this was an impossible use of ultrasound.
> None of us were ultrasound scientists before this. We worked backwards from a desire for brain interfaces and taught ourselves physics, ultrasound, electromagnetism.
Not to say it’s not interesting or neat, but the Silicon Valley approach to solving medical issues doesn’t have a good track record, let’s put it that way
I am skeptical of any brain ultrasound claim that doesn’t use skull correction which requires a CT scan.
Very large chunks of vasculature and major arteries are missing in the images they provided. Just because it’s pretty and colorful it doesn’t mean it’s useful.
Perhaps it will one day, but this doesn’t prove much so far. There are several physical challenges to using ultrasound.
They used a trick to inject sparse bubbles into the patient and let them flow through the brain, then looked for the perturbations caused by those sparse bubbles.
The Midjourney scanners aren’t injecting this bubble contrast agent into everyone’s veins.